[android-developers] Re: Highlight part of the text in a textview object
Sorry, bolding and italicizing is the extent of my text formatting
knowledge with Android.
Anyone else know more about this?
On Apr 17, 5:33 am, Sebastian Müller sebastia...@gmail.com wrote:
Thanks a lot for your answer. This works great for the Bold thing, but
background isnt changing...do you know why??
my Code:
if (index = 0) {
Spannable str = (Spannable) chapterResult.getText();
str.setSpan(new BackgroundColorSpan(0xFF), index, index +
searchQuery.getAll().length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
str.setSpan(new StyleSpan(android.graphics.Typeface.BOLD), index,
index + searchQuery.getAll().length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
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[android-developers] Re: Avoid restarting http request on orientation change
Depending on your specific needs, a service might make sense, but for simple cases, it's not strictly necessary. You can instead use Activity.onRetainNonConfigurationInstance(), which allows you to pass live Java objects to the new Activity instance - i.e., for example an AsyncTask object. Just make sure you don't create leaks by keeping references to old instances of your Activity around. I've been using a custom ASyncTask child class for a while that allows me to connect to the task from a new activity instance, and have the proper callbacks be executed even if the tasked finished in-between activities being available: http://github.com/miracle2k/android-autostarts/blob/master/src/com/elsdoerfer/android/autostarts/ActivityAsyncTask.java Note that while the docs say that onRetainNonConfigurationInstance is only for optimization, it's not quite clear what that the official contract is. Yes, it's possible that your activity needs to restore itself without onRetainNonConfigurationInstance(). For example, if the user leaves your application via HOME and then goes into the Settings and changes the device language, your activity will be stopped and restarted, presumably without onRetainNonConfigurationInstance() being called. However, it might be ok if in those cases your api request will indeed need start again fresh, depending on it's duration, and maybe whether it changes state on the server. But for your run of the mill orientation change, onRetainNonConfigurationInstance() is apparently being reliable called, and it has been suggested on this list a number of times that it is intended to be used for objects that can't be stored in a bundle, like for example sockets. Michael -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: glCopyTexImage2D - Success anyone?
Great! I'm glad you got it to work. FYI - CopyTexImage2D is a pipeline stall so you will want to set up your rendering order to account for that. I'm not sure how to optimize but I would try having it be as near to last as possible to start with. I don't know how to get the SubImage function to work. As far as I understand, you must start with an allocated texture space using TexImage2D and then and only then after that can you use SubTexImage2D. Please correct me if I'm wrong. I'd like to recommend checking for the FrameBufferObject (FBO) extension and using that instead of this function when available. I think all of the ES2 chips support it. It's much faster, but you'll need to fallback to this when it's not supported. On Apr 18, 12:30 am, Andres Colubri andres.colu...@gmail.com wrote: I finally got glCopyTexImage2D t work, using a power-of-two texture as you suggested, and GL_RGB as internal format passed to glCopyTexImage2D (the internal format of the texture is GL_RGBA). glCopyTexSubImage2D doesn't seem to work though. As far as I understand from reading the OpenGL ES documentation, this call: glCopyTexSubImage2D(GL10.GL_TEXTURE_2D, 0, 0, 0, 0, 0, w, h); should be equivalent to: glCopyTexImage2D(GL10.GL_TEXTURE_2D, 0, GL11.GL_RGB, 0,0, w, h, 0) if the internal format of the bound texture is RGB. Am I correct? Thanks for the feedback. Robert Green wrote: Have you tried copying it to a power of 2 texture instead of the viewport dimensions? I'd test with 512x256 and see if that works. On Apr 16, 10:22 pm, Andres Colubri andres.colu...@gmail.com wrote: Any updates on this one? I have been trying to copy the contents of the back buffer into an opengl texture, but without success. I'm using the same method mentioned in the first post of this thread: gl.glCopyTexImage2D(GL10.GL_TEXTURE_2D, 0, GL11.GL_RGB, 0,0, w, h, 0); where w and h are the current width and height of the screen, respectively. This works fine on the emulator, but it returns garbage back into the texture on the actual device. The phone is a Nexus One. On Dec 11 2009, 11:56 pm, scott19_68 sw.cop...@gmail.com wrote: Works for me on my HTC Hero - I too could only use RGB and not RGBA. Emulator flips the textures upside down though... Does anyone else have more information regarding other phones? I have an app on the app store that uses this method and I am suspecting that it does not work for all current phones. I get really useful comments like 'Does not work on Tattoo - nuff said'... Not sure if the forum rules prevent me from mentioning my app so PM me if you'd like to help out and test - I'd definitely appreciate it very much and would be willing to help you out in return regarding OpenGL development questions... On Nov 21, 4:45 pm, Ben Gotow bengo...@gmail.com wrote: Hey everyone, I'm porting anOpenGLapp from the iPhone to Android, and I need to renderOpenGLcontent to a texture. Since framebuffers are not available inOpenGL1.0 and the DROID is the only Android phone to support the framebuffer extension, I'm trying to draw usingOpenGLand then copy the result into a texture usingglCopyTexImage2D. However, my initial findings are not good: 1.glCopyTexImage2Dworks in the Android emulator (OS v. 1.5), but only with GL10.GL_RGB, not GL_RGBA. If you try to copy the alpha data from the scene into the texture, you just get a completely white texture. 2.glCopyTexImage2Ddoesn't seem to work _at all_ on the Android G1. It does not throw an UnsupportedOperationException but after calling it, the texture is completely white. Has anyone successfully usedglCopyTexImage2Don an actual device? If so, could you please post a bit of the code you're using? I suspect it works only with specific settings, if at all. Right now, I'm calling it like this: gl.glCopyTexImage2D(GL10.GL_TEXTURE_2D, 0, GL11.GL_RGBA, 0,0, 256, 256, 0); -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To
[android-developers] Re: requestLocationUpdates issue
Actually, just because something is a background service does NOT mean
it is running in a different thread.
Background services run in the main thread. I suspect that this point
of confusion may be involved in your problem, though I don't quite
spot the problem.
Also, you have a handler there that basically loops forever. That's
kind of an oxymoron. If you're going to do that, why involve a handler
at all? If I parse it correctly, it's not the main thread it'll be
blocking, but still... if something in that thread is posting via that
thread's looper rather than the context, that won't be processed.
Finally, never, ever, call getApplicationContext(). The return value
is not useful to us mortals. Supply the service itself as the context.
To make things maximally confusing, getApplicationContext() will
appear to work in most circumstances. But it's always the wrong way to
get a context to use.
On Apr 17, 2:05 pm, Tejas tej...@gmail.com wrote:
Ah... I got this working. Still I'm not sure of the reason for this
(some thread issue I suppose) It would be great if someone can throw
some light on this.
I was instantiating the sensor class in a background service.So the
thread in which it was running was different than the main thread.
I was doing something like this:
public class ManagerService extends Service {
private final String LTAG = this.getClass().getName();
private volatile Looper mServiceLooper;
private volatile ServiceHandler mServiceHandler;
private final class ServiceHandler extends Handler{
public ServiceHandler(Looper myLooper) {
super(myLooper);
}
public void handleMessage(Message msg) {
Log.v(LTAG, handleMessage Called);
super.handleMessage(msg);
// Class Instantiation
GPSSensor gs = new GPSSensor();
gs.setContext(getApplicationContext());
gs.startSensing()
// Main service loop
while(CARuntimes.MainServiceRunFlag == true){
Log.v(LTAG, In service Loop);
// Do something
SystemClock.sleep(6);
}//while
}
}
public void onCreate() {
super.onCreate();
HandlerThread myThread = new HandlerThread(Main Service
Thread);
myThread.start();
mServiceLooper = myThread.getLooper();
mServiceHandler = new ServiceHandler(mServiceLooper);
}
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
Message msg = mServiceHandler.obtainMessage();
//msg.obj = blah blah
mServiceHandler.sendMessage(msg);
}
public void onDestroy() {
Log.v(LTAG, onDestroy called, quitting looper);
super.onDestroy();
mServiceLooper.quit();
}
public IBinder onBind(Intent arg0) {
return null;
}
}
So, I was instantiating the GPSSensor in the handleMessage method. I
moved this to the onStart method and it started working.
I'm not sure why it wasn't working earlier and now has started working
with this change.
It will be great if anyone can explain this.
Cheers,
Tejas
On Apr 17, 1:59 am, Tejas tej...@gmail.com wrote:
Hi,
My class listed below is not working. No idea whatsoever. The
onLocationChanged method is never getting called !
I checked the logs for any errors/exceptions. I have the required
permissions set (fine and course locations).
I doubt the Context I'm setting from the caller. I'm using
getApplicationContext() to pass to the setContext method in this
class.
Can anyone please help ?
public class GPSSensor implements CASensor {
private String LTAG = this.getClass().getName();
Context myContext;
private String GPSData;
public LocationManager lMgr;
public LocationListener myLocListener = new LocationListener() {
public void onStatusChanged(String provider, int status,
Bundle
extras) {
Log.v(LTAG, === Here 1 );
}
public void onProviderEnabled(String provider) {
Log.v(LTAG, === Here 2 );
}
public void onProviderDisabled(String provider) {
Log.v(LTAG, === Here 3 );
}
public void onLocationChanged(Location location) {
if (location != null){
Re: [android-developers] Re: Selling outside the Android Market-- Use Google Checkout to sell direct from website??? SlideMe.Org??
On Sat, Apr 17, 2010 at 7:57 PM, George | SlideME george.slid...@gmail.comwrote: Wish to also say thank you to Paul for uploading his application to SlideME, considering the negativity of this thread from an ex-partner. I am sure Paul and many others will be well looked after as best as we can and have their say one day. I'd prefer if Paul could have his say right now. Paul, does this mean you investigation turned up positive results for dev payments from SlideME? According to a post by Koxx on androidforums (on April 3, 2010), payment from SlideME was still in progress. George said SlideME already paid him. What gives? Something really doesn't add up now. Thanks, Shane -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: glTexImage2D very slow on phones like Nexus one
Thanks, Mario. I think it's somewrong with the driver or the chip. It's not just a bandwidth problem. If it's really a bandwidth problem, it only has 1/7 bandwidth of milestone? (150ms compare to 20ms with a full screen tex).That's very funny. I'm working on some libs, which will be used for our tools and games. When a full screen update only takes 20+ms, it's usable in some conditions as it already gets at least 40fps. On 4月17日, 下午6时22分, Mario Zechner badlogicga...@gmail.com wrote: It seems that the msm chips are notorious for having a low bandwidth. There's really no solution to that problem other than 1) lowering your texture size 2) lowering the bit depth of the texture, e.g. instead of using RGBA use RGBA444 or RGB565 2) uploading your texture in patches, e.g. split it up into 4 smaller parts and upload one part each frame. This will probably lead to artifacts if your frame rate is low but could work otherwise. Just out of curiousity: why do you have to upload such a big texture each frame? If you'd state your scenario in detail we might be able to suggest other solutions to the problem. On 17 Apr., 12:10, Eong eong.c...@gmail.com wrote: Robert, Sorry, it's not text, it's tex. I just use this to draw the background. I just want to know why nexus one is so slow with this. It takes 20ms on my milestone but it takes at least 80ms on the nexus one, for one frame. On 4月17日, 上午2时08分, Robert Green rbgrn@gmail.com wrote: Eong, You said you are uploading every frame just to draw text? There are much more efficient ways to do that. On Apr 16, 11:14 am, Eong eong.c...@gmail.com wrote: I'm afraid it's not a same problem. My problem only happenes on Snapdragon phones. It's fine on Milestone or Droid. I found a few threads about this but no solution. On 4月16日, 下午9时15分, Felipe Silveira webfel...@gmail.com wrote: Just a guess: It can be the same error reported here:http://code.google.com/p/android/issues/detail?id=7520 Take a look... Felipe Silveirahttp://www.felipesilveira.com.br On Fri, Apr 16, 2010 at 8:40 AM, Eong eong.c...@gmail.com wrote: Hi, We are developing 2D games. And we found our game works fine except the snapdragon chips, like Nexus one and Liquid A1. It even runs fine on G1. We use GLSurfaceView, and we useglTexImage2Dand glTexIsubmage2D to put on the text and then draw. TheglTexImage2Dclass take more than 100ms on Nexus one (1024x512 pix tex). It's very strange, G1 is even faster than this. If anyone know something about this? -Code snip--- gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT); gl.glTexSubImage2D(GL10.GL_TEXTURE_2D, 0, 0, 0, m_width, m_height, GL10.GL_RGB, GL_UNSIGNED_SHORT_5_6_5, m_byteCanvas); ((GL11Ext)gl).glDrawTexiOES(0, 0, 0, m_width, m_height); -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2Bunsubs cr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- Felipe Silveira Engenharia da Computação Universidade Federal de Itajubáhttp://www.felipesilveira.com.br MSN: felipeuni...@hotmail.com - -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group
[android-developers] Socket + SurfaceView + multiplayer game problem. Need Help
Hi all, I'm developping a simple realtime action game 4 Android. It works nice. but now i want deal with animation FPS and i'm facing a big problem i can't solve since couple days now. I started from the famous Lunar Android sample using facebook. got 55-60 frame per second on my G1. it smelt good for my game i thought ... BUT when i plugged the surface view in my game i got a poor 6-9 Frame per second making the game unplayable. After debugging removing all content of my doDraw used by the thread controlling the surface view i found the problem. The problem is not the quantity of sprites i displayed but the concurrency between threads used for receiving my game data over TCP and the UI thread i use to control surface view. If when i start displaying the game i stop the my socket protocol threads (reader, writer) the game is refreshed at 25 FPS which is not 50 FPS but large enought to make the game playable. So my question is how in realtime game for android i can send / received data (and not delayed of course) without killing the game refresh rate. Last thing i use canvas and not open gl but i don't need open gl and i really see the problem comes from the multithreading Thanks a Lot for your help. Luc -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: glTexImage2D very slow on phones like Nexus one
Eong, All Mario and I are trying to say is that the thing you are trying to do (upload textures every frame) is generally not considered a good practice and workarounds usually exist that are more efficient, especially if you can target higher levels of opengl or use extensions like framebufferobjects. If you would be willing to tell us something a little bit more specific about what you're doing that requires a texture update every frame, we could potentially offer some more efficient ways of doing it. On Apr 18, 2:44 am, Eong eong.c...@gmail.com wrote: Thanks, Mario. I think it's somewrong with the driver or the chip. It's not just a bandwidth problem. If it's really a bandwidth problem, it only has 1/7 bandwidth of milestone? (150ms compare to 20ms with a full screen tex).That's very funny. I'm working on some libs, which will be used for our tools and games. When a full screen update only takes 20+ms, it's usable in some conditions as it already gets at least 40fps. On 4月17日, 下午6时22分, Mario Zechner badlogicga...@gmail.com wrote: It seems that the msm chips are notorious for having a low bandwidth. There's really no solution to that problem other than 1) lowering your texture size 2) lowering the bit depth of the texture, e.g. instead of using RGBA use RGBA444 or RGB565 2) uploading your texture in patches, e.g. split it up into 4 smaller parts and upload one part each frame. This will probably lead to artifacts if your frame rate is low but could work otherwise. Just out of curiousity: why do you have to upload such a big texture each frame? If you'd state your scenario in detail we might be able to suggest other solutions to the problem. On 17 Apr., 12:10, Eong eong.c...@gmail.com wrote: Robert, Sorry, it's not text, it's tex. I just use this to draw the background. I just want to know why nexus one is so slow with this. It takes 20ms on my milestone but it takes at least 80ms on the nexus one, for one frame. On 4月17日, 上午2时08分, Robert Green rbgrn@gmail.com wrote: Eong, You said you are uploading every frame just to draw text? There are much more efficient ways to do that. On Apr 16, 11:14 am, Eong eong.c...@gmail.com wrote: I'm afraid it's not a same problem. My problem only happenes on Snapdragon phones. It's fine on Milestone or Droid. I found a few threads about this but no solution. On 4月16日, 下午9时15分, Felipe Silveira webfel...@gmail.com wrote: Just a guess: It can be the same error reported here:http://code.google.com/p/android/issues/detail?id=7520 Take a look... Felipe Silveirahttp://www.felipesilveira.com.br On Fri, Apr 16, 2010 at 8:40 AM, Eong eong.c...@gmail.com wrote: Hi, We are developing 2D games. And we found our game works fine except the snapdragon chips, like Nexus one and Liquid A1. It even runs fine on G1. We use GLSurfaceView, and we useglTexImage2Dand glTexIsubmage2D to put on the text and then draw. TheglTexImage2Dclass take more than 100ms on Nexus one (1024x512 pix tex). It's very strange, G1 is even faster than this. If anyone know something about this? -Code snip--- gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT); gl.glTexSubImage2D(GL10.GL_TEXTURE_2D, 0, 0, 0, m_width, m_height, GL10.GL_RGB, GL_UNSIGNED_SHORT_5_6_5, m_byteCanvas); ((GL11Ext)gl).glDrawTexiOES(0, 0, 0, m_width, m_height); -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2Bunsubs cr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- Felipe Silveira Engenharia da Computação Universidade Federal de Itajubáhttp://www.felipesilveira.com.br MSN: felipeuni...@hotmail.com - -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android
[android-developers] Is the bad MotionEvent/Touch slowdown stuff actually fixed on first-gen 2.1 updates?
Just wondering if anyone can speak on this yet. I'd really like to know what the state of that fix is as 2.1 is rolled out onto first generation (MSM7200-based) devices. As it stands, I don't see much of a problem with touch eating up CPU on the Droid and N1 but those are much faster phones so I don't think it would be quite as pronounced on them. My current 1.6 devices (G1 and Tattoo) cut my framerates in half during any touch (with the sleep hack, even). I optimized my new games so that they would run well-enough (25-40fps) on that hardware but they have very touch-centric interfaces so won't work well with that bug. I talked to a few people who run 2.0/2.1 mods on their G1s and they said the problem isn't any better. They still see the big slowdown. I tested on my 1.6 emulator vs a 2.1 emulator and there is a huge improvement. The 1.6 emulator slows down just like my G1 does and the 2.1 emulator shows only a tiny bit of slowdown, which is what I was hoping for. That's encouraging, but I have yet to see a real 2.1 MSM7200 update in the field so I don't know what to think yet. Anyone got anything concrete on this? Thanks! -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: memory problem with image... but strange...
It wasn't solved, now it ask for less memory but still outOfMemory sometimes. I really don't know what to do if anyone knows how to solve it, please tell me!!! -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Is the bad MotionEvent/Touch slowdown stuff actually fixed on first-gen 2.1 updates?
Actually I take it back about the emulators. I just tested again in the 2.1 emulator and realized that in my first test, I was holding the finger down on the screen but unlike a device, it doesn't send constant motion events if you hold the cursor still. Moving the cursor (touch) around caused the same problem as on 1.6! Now I'm a little worried. Is this problem really still not fixed? On Apr 18, 4:30 am, Robert Green rbgrn@gmail.com wrote: Just wondering if anyone can speak on this yet. I'd really like to know what the state of that fix is as 2.1 is rolled out onto first generation (MSM7200-based) devices. As it stands, I don't see much of a problem with touch eating up CPU on the Droid and N1 but those are much faster phones so I don't think it would be quite as pronounced on them. My current 1.6 devices (G1 and Tattoo) cut my framerates in half during any touch (with the sleep hack, even). I optimized my new games so that they would run well-enough (25-40fps) on that hardware but they have very touch-centric interfaces so won't work well with that bug. I talked to a few people who run 2.0/2.1 mods on their G1s and they said the problem isn't any better. They still see the big slowdown. I tested on my 1.6 emulator vs a 2.1 emulator and there is a huge improvement. The 1.6 emulator slows down just like my G1 does and the 2.1 emulator shows only a tiny bit of slowdown, which is what I was hoping for. That's encouraging, but I have yet to see a real 2.1 MSM7200 update in the field so I don't know what to think yet. Anyone got anything concrete on this? Thanks! -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] OutOfMemory problem
I really don't know why it's giving me this error... I load an ImageView with an image of 692kb .jpg, using scroll options, so you can scroll it around... the strange it's that when the mobile it's connected to the VM it's less possible to happen. So...how can I prevent this? is there anyway that I can free memory when starting the app? can I tell the system to free memory before loading the image? please show me the path =Pthx a lot! -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Socket + SurfaceView + multiplayer game problem. Need Help
Hi, I am not big Android programmer .. I cant solve this problem ... but wish to learn this cocept like u have ,Socket + surfaceView is there any specific link that u have through which i can learn abt this ..? please send me if u can ... thanks, satish On Sun, Apr 18, 2010 at 1:48 PM, croco zeug...@gmail.com wrote: Hi all, I'm developping a simple realtime action game 4 Android. It works nice. but now i want deal with animation FPS and i'm facing a big problem i can't solve since couple days now. I started from the famous Lunar Android sample using facebook. got 55-60 frame per second on my G1. it smelt good for my game i thought ... BUT when i plugged the surface view in my game i got a poor 6-9 Frame per second making the game unplayable. After debugging removing all content of my doDraw used by the thread controlling the surface view i found the problem. The problem is not the quantity of sprites i displayed but the concurrency between threads used for receiving my game data over TCP and the UI thread i use to control surface view. If when i start displaying the game i stop the my socket protocol threads (reader, writer) the game is refreshed at 25 FPS which is not 50 FPS but large enought to make the game playable. So my question is how in realtime game for android i can send / received data (and not delayed of course) without killing the game refresh rate. Last thing i use canvas and not open gl but i don't need open gl and i really see the problem comes from the multithreading Thanks a Lot for your help. Luc -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Is the bad MotionEvent/Touch slowdown stuff actually fixed on first-gen 2.1 updates?
I can confirm that the issue is still there in Android 2.0.1 on my Milestone as well (and more pronounced) on my HTC Hero which still runs 1.5. I put together a quick test that you can download from http://file-pasta.com/file/0/touchflood.apk (Note: it's 300kb because i used a game dev framework to put that together which features a bit more than is needed). Observations on 2.0.1: - Touching alone decreases the performance a bit, around 2-4 frames are lost - Touching and moving the finger around makes things works, the frame rate drops by up to 8fps - The slow down is not constant but fluctuates a lot. - Sleeping in onTouch does not solve the problem at all (sleep times from 16 to 40ms) but only increases the lag in user input At least there's no garbage collection in 2.0.1 anymore due to touch events. On 18 Apr., 11:46, Robert Green rbgrn@gmail.com wrote: Actually I take it back about the emulators. I just tested again in the 2.1 emulator and realized that in my first test, I was holding the finger down on the screen but unlike a device, it doesn't send constant motion events if you hold the cursor still. Moving the cursor (touch) around caused the same problem as on 1.6! Now I'm a little worried. Is this problem really still not fixed? On Apr 18, 4:30 am, Robert Green rbgrn@gmail.com wrote: Just wondering if anyone can speak on this yet. I'd really like to know what the state of that fix is as 2.1 is rolled out onto first generation (MSM7200-based) devices. As it stands, I don't see much of a problem with touch eating up CPU on the Droid and N1 but those are much faster phones so I don't think it would be quite as pronounced on them. My current 1.6 devices (G1 and Tattoo) cut my framerates in half during any touch (with the sleep hack, even). I optimized my new games so that they would run well-enough (25-40fps) on that hardware but they have very touch-centric interfaces so won't work well with that bug. I talked to a few people who run 2.0/2.1 mods on their G1s and they said the problem isn't any better. They still see the big slowdown. I tested on my 1.6 emulator vs a 2.1 emulator and there is a huge improvement. The 1.6 emulator slows down just like my G1 does and the 2.1 emulator shows only a tiny bit of slowdown, which is what I was hoping for. That's encouraging, but I have yet to see a real 2.1 MSM7200 update in the field so I don't know what to think yet. Anyone got anything concrete on this? Thanks! -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Is the bad MotionEvent/Touch slowdown stuff actually fixed on first-gen 2.1 updates?
I've tried sleep() and have switched to wait(1000), notify() / yield() as outlined by some other devs. I have no empirical evidence that one works any better than the other. Both consume a range between 25-36% of the CPU by system_process while touching. That's a full third of the CPU of the device just to give me coordinates off the touch screen. No one has a good workaround for this it seems and seeing the problem on the 2.1 emulator makes me think that Google Android devs have swept it aside with a casual It's good enough. Let's see replica island switch to constant-touch controls (virtual joystick or virtual dpad) and retain framerates over 20 with that input scheme on any MSM7200-based device. I'm a little frustrated. I've spent the last 6 months writing two really nice games (Best work I've ever done in my 11 year programming career, in fact) and this is their main issue now. They run fantastic on the Droid and N1, of course, and even get solid framerates on the MSM7200 up until you touch the screen... Then it's lag-city all the way home. I'm ready to put up a decent cash bounty for someone that can provide a reliable solution to this that doesn't involve me taking away the constant-touch controls. Contact me if you have experience fixing this problem and are sure you can do it. On Apr 18, 5:41 am, Mario Zechner badlogicga...@gmail.com wrote: I can confirm that the issue is still there in Android 2.0.1 on my Milestone as well (and more pronounced) on my HTC Hero which still runs 1.5. I put together a quick test that you can download fromhttp://file-pasta.com/file/0/touchflood.apk(Note: it's 300kb because i used a game dev framework to put that together which features a bit more than is needed). Observations on 2.0.1: - Touching alone decreases the performance a bit, around 2-4 frames are lost - Touching and moving the finger around makes things works, the frame rate drops by up to 8fps - The slow down is not constant but fluctuates a lot. - Sleeping in onTouch does not solve the problem at all (sleep times from 16 to 40ms) but only increases the lag in user input At least there's no garbage collection in 2.0.1 anymore due to touch events. On 18 Apr., 11:46, Robert Green rbgrn@gmail.com wrote: Actually I take it back about the emulators. I just tested again in the 2.1 emulator and realized that in my first test, I was holding the finger down on the screen but unlike a device, it doesn't send constant motion events if you hold the cursor still. Moving the cursor (touch) around caused the same problem as on 1.6! Now I'm a little worried. Is this problem really still not fixed? On Apr 18, 4:30 am, Robert Green rbgrn@gmail.com wrote: Just wondering if anyone can speak on this yet. I'd really like to know what the state of that fix is as 2.1 is rolled out onto first generation (MSM7200-based) devices. As it stands, I don't see much of a problem with touch eating up CPU on the Droid and N1 but those are much faster phones so I don't think it would be quite as pronounced on them. My current 1.6 devices (G1 and Tattoo) cut my framerates in half during any touch (with the sleep hack, even). I optimized my new games so that they would run well-enough (25-40fps) on that hardware but they have very touch-centric interfaces so won't work well with that bug. I talked to a few people who run 2.0/2.1 mods on their G1s and they said the problem isn't any better. They still see the big slowdown. I tested on my 1.6 emulator vs a 2.1 emulator and there is a huge improvement. The 1.6 emulator slows down just like my G1 does and the 2.1 emulator shows only a tiny bit of slowdown, which is what I was hoping for. That's encouraging, but I have yet to see a real 2.1 MSM7200 update in the field so I don't know what to think yet. Anyone got anything concrete on this? Thanks! -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to
[android-developers] Disable or Override the Car Dock App
Is there any way to disable or override the car dock app? I want the application that I am writing to be able to launch when the device is placed into the car dock. I have created a BroadcastReceiver for my app but the standard car dock app displays, not my app. I know that my broadcast receiver is working because when I click the back button on the device from the car dock app it shows my app. How do I get it to not show the car dock app? There is no listing for the car dock app in the list of installed apps on the phone. The only solution I have found on the web is to root your phone and change the .apk file name. I can't expect my users to do that. Any help greatly appreciated. Thanks -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Disable or Override the Car Dock App
shookie10 wrote: Is there any way to disable or override the car dock app? You should be able to provide an alternative to the car dock app by having an activity with an intent-filter with the CATEGORY_CAR_DOCK category. I would expect the user to then get a choice of what activity to start when they dock their phone, just as there is with a replacement home screen. However, I don't have a car dock and so have not experimented with this category. I have created a BroadcastReceiver for my app but the standard car dock app displays, not my app. To quote the documentation: To launch an activity from a dock state change, use CATEGORY_CAR_DOCK or CATEGORY_DESK_DOCK instead. (that's from the docs for ACTION_DOCK_EVENT, which is what your BroadcastReceiver presumably listens for) -- Mark Murphy (a Commons Guy) http://commonsware.com | http://twitter.com/commonsguy Android 2.x Programming Books: http://commonsware.com/books -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Socket + SurfaceView + multiplayer game problem. Need Help
FYI, I've raised to 18 FPS by using LinkedBlockingQueue instead of 8FPS with while design in Socket writer. But we are far from 60FPS per second. Any help? Thanks Luc On 18 avr, 10:18, croco zeug...@gmail.com wrote: Hi all, I'm developping a simple realtime action game 4 Android. It works nice. but now i want deal with animation FPS and i'm facing a big problem i can't solve since couple days now. I started from the famous Lunar Android sample using facebook. got 55-60 frame per second on my G1. it smelt good for my game i thought ... BUT when i plugged the surface view in my game i got a poor 6-9 Frame per second making the game unplayable. After debugging removing all content of my doDraw used by the thread controlling the surface view i found the problem. The problem is not the quantity of sprites i displayed but the concurrency between threads used for receiving my game data over TCP and the UI thread i use to control surface view. If when i start displaying the game i stop the my socket protocol threads (reader, writer) the game is refreshed at 25 FPS which is not 50 FPS but large enought to make the game playable. So my question is how in realtime game for android i can send / received data (and not delayed of course) without killing the game refresh rate. Last thing i use canvas and not open gl but i don't need open gl and i really see the problem comes from the multithreading Thanks a Lot for your help. Luc -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Clear defaults programmatically
I'm using this code ... hope it helps PreferenceManager.getDefaultSharedPreferences(context).edit().clear().commit(); On Apr 16, 11:09 am, Bonifaz bonifaz.kaufm...@gmail.com wrote: Does anyone know how to clear defaults of my own app by code. I know that a user can always go to Manage Applications, find my app and click the button there to clear previously assigned default actions. But for most users this isn't intuitive at all. I would like to offer my customers a solution to clear defaults within my own app if they don't like to use my app as a replacement for a specific action anymore. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Disabling records in a List View
I have a list view which is populated via records from the database.
Now i have to make some records visible but unavailable for selection,
how can i achieve that?
here's my code
public class SomeClass extends ListActivity {
private static ListString products;
private DataHelper dh;
public void onCreate(Bundle savedInstanceState) {
dh = new DataHelper(this);
products = dh.GetMyProducts(); /* Returns a ListString*/
super.onCreate(savedInstanceState);
setListAdapter(new ArrayAdapterString(this,
R.layout.myproducts,
products));
ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(
new OnItemClickListener() {
@Override
public void onItemClick(AdapterView? arg0,
View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(),
((TextView)
arg1).getText(),
Toast.LENGTH_SHORT).show();
}
}
);
}
}
The layout file myproducts.xml is as follows
?xml version=1.0 encoding=utf-8?
TextView xmlns:android=http://schemas.android.com/apk/res/android;
android:layout_width=fill_parent
android:layout_height=wrap_content
android:padding=10dp
android:textSize=16sp
/TextView
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Re: [android-developers] Disabling records in a List View
Prathamesh Shetye wrote: I have a list view which is populated via records from the database. Now i have to make some records visible but unavailable for selection, how can i achieve that? Step #1: Create your own subclass of ArrayAdapter Step #2: Override areAllItemsEnabled() in that subclass to return false Step #3: Override isItemEnabled() in that subclass to return true for the enabled positions and false for the disabled positions Note that disabled rows do not get dividers around them. Dividers only separate a pair of enabled rows. -- Mark Murphy (a Commons Guy) http://commonsware.com | http://twitter.com/commonsguy Warescription: Three Android Books, Plus Updates, One Low Price! -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Disabling records in a List View
Thanks Mark, I'll try it out. Cheers! On Apr 18, 6:20 pm, Mark Murphy mmur...@commonsware.com wrote: Prathamesh Shetye wrote: I have a list view which is populated via records from the database. Now i have to make some records visible but unavailable for selection, how can i achieve that? Step #1: Create your own subclass of ArrayAdapter Step #2: Override areAllItemsEnabled() in that subclass to return false Step #3: Override isItemEnabled() in that subclass to return true for the enabled positions and false for the disabled positions Note that disabled rows do not get dividers around them. Dividers only separate a pair of enabled rows. -- Mark Murphy (a Commons Guy)http://commonsware.com|http://twitter.com/commonsguy Warescription: Three Android Books, Plus Updates, One Low Price! -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: HTC Desire keyboard problem
Hi Michael It'll be the Sense UI's IME which has different behaviour to the stock Android IME. Sadly, I'd suggest that you get your hands on a Sense UI- equipped device (even a Hero, which whilst it has 1.5 on it, may help you track that issues). When you say that ACTION_UP doesn't work, is this for all key presses, or just some in particular? A bit more information on what you're attempting to capture with ACTION_UP would be helpful in order to allow to to get some useful debug prints out. On Apr 17, 8:46 am, Michael Rueger mike.rue...@gmail.com wrote: Hi all, a day away from deployment... Our application which we had tested on a G1 with 1.6 and a Nexus with 2.1 suddenly has unexpected problems on a HTC desire (German version) with 2.1. It seems that the keyboard behaves differently: - event.getAction() == KeyEvent.ACTION_UP doesn't work/fire - android:imeOptions=actionNext doesn't seem to be honored by the keyboard (it keeps the return button) Unfortunately I don't have access to the phone (a user did some testing) so I can't debug. Any ideas? Michael -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: What's wrong with this location code?
patbenatar wrote: Perhaps you are forgetting about the chain and theodolite provider. Mike- What are those? The LocationManager class only has these two provider constants: GPS_PROVIDER, NETWORK_PROVIDER. I was just making a funny, but the larger point is to not code things as if these are the only two forever more, (think ultimately Galileo as an example), and certainly don't make assumptions about the accuracy of resolution (Galileo is supposed to be quite a bit more accurate once its constellation is up). Mike Thanks! Nick On Apr 17, 2:57 am, Michael Thomas enervat...@gmail.com wrote: patbenatar wrote: You really have no reason to have a LocationListener[10] array... There are really only two location providers, Network and GPS. So all you need are two LocationListeners: fineLocationListener and coarseLocationListener. Perhaps you are forgetting about the chain and theodolite provider. Mike ;-) -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Using Selector to change ImageButton's background while keeping the content image
Hi there, I am currently trying to customize ImageButton to show different draweables as background of the Button while keeping the image set via the src attribute. That's my custom_button.xml: ?xml version=1.0 encoding=utf-8? selector xmlns:android=http://schemas.android.com/apk/res/android; item android:state_pressed=true android:drawable=@drawable/round_list_item / !-- pressed -- item android:state_focused=true android:drawable=@drawable/round_list_item / !-- focused -- item android:drawable=@drawable/transparent / !-- default -- /selector And this is the actual definition of the ImageButton: ImageButton android:background=@drawable/custom_button android:src=@drawable/attach_icon android:id=@+id/test_button android:layout_height=35dip android:layout_width=35dip/ ImageButton Unfortunately all I get is the background from the selector xml (whichs is btw working as expected) but not the image I have set via the src attribute. So basically all I want is to replace the standard state background drawables while keeping the ability to set a foreground/content image. Am I doing something wrong here? Greetings, maui -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Disabling records in a List View
Hi Mark, Here's what I did
My Existing Class extending ListActivity
/
***/
public class LifeProducts extends ListActivity {
private static ListString products;
private static ListString actives;
private DataHelper dh;
private ListMyProducts ips;
public void onCreate(Bundle savedInstanceState) {
dh = new DataHelper(this);
ips = dh.GetMyProducts();
products = new ArrayListString();
actives = new ArrayListString();
for(MyProducts ip : ips){
products.add(ip.name);
if (ip.active == 0)
actives.add(N);
else
actives.add(Y);
}
super.onCreate(savedInstanceState);
ProductAdapterString pas = new ProductAdapterString(this,
R.layout.life_products, products);
pas.setActiveList(actives);
setListAdapter(pas);
ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(
new OnItemClickListener() {
@Override
public void onItemClick(AdapterView? arg0,
View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(),
((TextView)
arg1).getText(),
Toast.LENGTH_SHORT).show();
}
}
);
}
}
and here's how i overloaded the ArrayAdapter
/
***/
@SuppressWarnings({ unchecked, hiding })
public class ProductAdapterString extends ArrayAdapter{
public ProductAdapter(Context context, int textViewResourceId, List
objects) {
super(context, textViewResourceId, objects);
// TODO Auto-generated constructor stub
}
public ListString actives;
public void setActiveList(ListString act){
actives = act;
}
@Override
public boolean areAllItemsEnabled(){
return false;
}
@Override
public boolean isEnabled(int position){
for (String s : actives){
if (s == Y)
return true;
else
return false;
}
return true;
}
}
/
***/
Now my Database has 8 records, which are to be displayed
I am not getting any error but the my output just contains the last
records displayed 8 times
what am i doing wrong??
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Re: [android-developers] Re: Is the bad MotionEvent/Touch slowdown stuff actually fixed on first-gen 2.1 updates?
I have already talked a lot about the touch slow down in this forum. There is another observation I would like to add, may be this can help to track the problem down. One of my projects is an Argumented Reality Game. Of course this kind of App eats energy (CPU cycles) like crazy: In my app I process: The camare, OpenGL graphics, Pseudo-3D-Sound mixing (8 simultaneous samples + ogg-music), 2 constant sensor imputs (acceleration, magnetic) and additional input from trackball, hardware keys and the touch screen. The largest slow down occurs with the touch-events. But the next big slow down occurs with the accleration and magnetic events! I gained up to 4 FPS on a N1 by switching from SENSOR_DELAY_FASTEST to SENSOR_DELAY_GAME. = So I just wonder: May be the slow down is in no way specific to touch events! Instead the whole input-queue-event handling is just horribly slow. As everyonw has observed: Touching the screen will trigger (flood) lots of events - This is similar as enabling input from other sensors - which can slow down the app in a compareable way, too! The main differences is only: Touching the screen will still trigger more event than using a sesnor in *SENSOR_DELAY_FASTEST*. So the slow down appears as less drastically... After working a while with Android, I must say: The design and architecture of the Java-API seems to be nice and well done most of the time. But the execution and implementation of the software stack as a whole seems to be just slow, slow, slow, slow, All this doesn't matter if you have lots of servers with many cores (ENTERPRISE!) but for an embedded-soft-realtime-device I expect more! IMHO the OS on an embedded device with a 1 GHZ CPU should not use more than 1% of the CPU to process around thousand events per seconds - and even this i would consider slow. Anyway, this time I resist to go into a deeper rant. Kind Regards, Ralf 2010/4/18 Robert Green rbgrn@gmail.com I've tried sleep() and have switched to wait(1000), notify() / yield() as outlined by some other devs. I have no empirical evidence that one works any better than the other. Both consume a range between 25-36% of the CPU by system_process while touching. That's a full third of the CPU of the device just to give me coordinates off the touch screen. No one has a good workaround for this it seems and seeing the problem on the 2.1 emulator makes me think that Google Android devs have swept it aside with a casual It's good enough. Let's see replica island switch to constant-touch controls (virtual joystick or virtual dpad) and retain framerates over 20 with that input scheme on any MSM7200-based device. I'm a little frustrated. I've spent the last 6 months writing two really nice games (Best work I've ever done in my 11 year programming career, in fact) and this is their main issue now. They run fantastic on the Droid and N1, of course, and even get solid framerates on the MSM7200 up until you touch the screen... Then it's lag-city all the way home. I'm ready to put up a decent cash bounty for someone that can provide a reliable solution to this that doesn't involve me taking away the constant-touch controls. Contact me if you have experience fixing this problem and are sure you can do it. On Apr 18, 5:41 am, Mario Zechner badlogicga...@gmail.com wrote: I can confirm that the issue is still there in Android 2.0.1 on my Milestone as well (and more pronounced) on my HTC Hero which still runs 1.5. I put together a quick test that you can download fromhttp:// file-pasta.com/file/0/touchflood.apk(Notehttp://file-pasta.com/file/0/touchflood.apk%28Note: it's 300kb because i used a game dev framework to put that together which features a bit more than is needed). Observations on 2.0.1: - Touching alone decreases the performance a bit, around 2-4 frames are lost - Touching and moving the finger around makes things works, the frame rate drops by up to 8fps - The slow down is not constant but fluctuates a lot. - Sleeping in onTouch does not solve the problem at all (sleep times from 16 to 40ms) but only increases the lag in user input At least there's no garbage collection in 2.0.1 anymore due to touch events. On 18 Apr., 11:46, Robert Green rbgrn@gmail.com wrote: Actually I take it back about the emulators. I just tested again in the 2.1 emulator and realized that in my first test, I was holding the finger down on the screen but unlike a device, it doesn't send constant motion events if you hold the cursor still. Moving the cursor (touch) around caused the same problem as on 1.6! Now I'm a little worried. Is this problem really still not fixed? On Apr 18, 4:30 am, Robert Green rbgrn@gmail.com wrote: Just wondering if anyone can speak on this yet. I'd really like to know what the state of that fix is as 2.1 is rolled out onto first generation (MSM7200-based) devices. As it stands,
[android-developers] Need some knowledge on android emulator | Please Help
Hi All, I'm interested in doing some enhancements to android emulator (implement webcam on emulator). Therefore I'm following the android source and emulators source to get basic understanding the connection between modules. But its really hard to understand it for someone who is new to android. Therefore can anyone please direct me to some resource to understand this. May be some proper documentation, tutorials or anything that i can understand this. And since i'm interested in emulator if i change the code of emulator with in external\qemu , then build it using m emulator and run using emulator , will those changes effect or apply onto the started emulator. And if anyone know please let me know that, what is the sdk it uses when it run as emulator from the build android source code. Cos if i want to install some application to that emulator how can i do that? Please help if anyone know... -- Thanks Regards, Thisara. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Disabling records in a List View
Prathamesh Shetye wrote:
Hi Mark, Here's what I did
My Existing Class extending ListActivity
/
***/
public class LifeProducts extends ListActivity {
private static ListString products;
private static ListString actives;
private DataHelper dh;
private ListMyProducts ips;
public void onCreate(Bundle savedInstanceState) {
dh = new DataHelper(this);
ips = dh.GetMyProducts();
products = new ArrayListString();
actives = new ArrayListString();
for(MyProducts ip : ips){
products.add(ip.name);
if (ip.active == 0)
actives.add(N);
else
actives.add(Y);
}
super.onCreate(savedInstanceState);
ProductAdapterString pas = new ProductAdapterString(this,
R.layout.life_products, products);
pas.setActiveList(actives);
setListAdapter(pas);
ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(
new OnItemClickListener() {
@Override
public void onItemClick(AdapterView? arg0,
View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(),
((TextView)
arg1).getText(),
Toast.LENGTH_SHORT).show();
}
}
);
}
}
and here's how i overloaded the ArrayAdapter
/
***/
@SuppressWarnings({ unchecked, hiding })
public class ProductAdapterString extends ArrayAdapter{
public ProductAdapter(Context context, int textViewResourceId, List
objects) {
super(context, textViewResourceId, objects);
// TODO Auto-generated constructor stub
}
public ListString actives;
public void setActiveList(ListString act){
actives = act;
}
@Override
public boolean areAllItemsEnabled(){
return false;
}
@Override
public boolean isEnabled(int position){
for (String s : actives){
if (s == Y)
return true;
else
return false;
}
return true;
}
}
/
***/
Now my Database has 8 records, which are to be displayed
I am not getting any error but the my output just contains the last
records displayed 8 times
what am i doing wrong??
Get rid of @SuppressWarnings({ unchecked, hiding }) and fix whatever
warnings you're getting.
Your isEnabled() implementation is not using the position parameter.
That would seem to be an error, since the whole *point* of isEnabled()
is to indicate if the row at a certain position in your adapter is or is
not enabled.
Beyond that, I have no suggestions.
--
Mark Murphy (a Commons Guy)
http://commonsware.com | http://twitter.com/commonsguy
_Android Programming Tutorials_ Version 2.0 Available!
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[android-developers] Re: Disabling records in a List View
never mind, solved it, cheers mate!
On Apr 18, 8:26 pm, Prathamesh Shetye prathamesh.she...@gmail.com
wrote:
Hi Mark, Here's what I did
My Existing Class extending ListActivity
/
***
/
public class LifeProducts extends ListActivity {
private static ListString products;
private static ListString actives;
private DataHelper dh;
private ListMyProducts ips;
public void onCreate(Bundle savedInstanceState) {
dh = new DataHelper(this);
ips = dh.GetMyProducts();
products = new ArrayListString();
actives = new ArrayListString();
for(MyProducts ip : ips){
products.add(ip.name);
if (ip.active == 0)
actives.add(N);
else
actives.add(Y);
}
super.onCreate(savedInstanceState);
ProductAdapterString pas = new ProductAdapterString(this,
R.layout.life_products, products);
pas.setActiveList(actives);
setListAdapter(pas);
ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(
new OnItemClickListener() {
@Override
public void onItemClick(AdapterView? arg0,
View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), ((TextView)
arg1).getText(),
Toast.LENGTH_SHORT).show();
}
}
);
}
}
and here's how i overloaded the ArrayAdapter
/
***
/
@SuppressWarnings({ unchecked, hiding })
public class ProductAdapterString extends ArrayAdapter{
public ProductAdapter(Context context, int textViewResourceId, List
objects) {
super(context, textViewResourceId, objects);
// TODO Auto-generated constructor stub
}
public ListString actives;
public void setActiveList(ListString act){
actives = act;
}
@Override
public boolean areAllItemsEnabled(){
return false;
}
@Override
public boolean isEnabled(int position){
for (String s : actives){
if (s == Y)
return true;
else
return false;
}
return true;
}}
/
***
/
Now my Database has 8 records, which are to be displayed
I am not getting any error but the my output just contains the last
records displayed 8 times
what am i doing wrong??
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athttp://groups.google.com/group/android-developers?hl=en
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[android-developers] Re: OutOfMemory problem
How big, in pixels, is the image? On Apr 18, 5:50 am, Kofa elk...@gmail.com wrote: I really don't know why it's giving me this error... I load an ImageView with an image of 692kb .jpg, using scroll options, so you can scroll it around... the strange it's that when the mobile it's connected to the VM it's less possible to happen. So...how can I prevent this? is there anyway that I can free memory when starting the app? can I tell the system to free memory before loading the image? please show me the path =Pthx a lot! -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: glCopyTexImage2D - Success anyone?
FYI - CopyTexImage2D is a pipeline stall so you will want to set up your rendering order to account for that. I'm not sure how to optimize but I would try having it be as near to last as possible to start with. Thanks for the recommendation. In fact, I'm using it as the very last function in the rendering sequence. The effect on the performance is quite noticeable: the framerate goes from 60 down to 20 when doing copying a 256x512 texture. I don't know how to get the SubImage function to work. As far as I understand, you must start with an allocated texture space using TexImage2D and then and only then after that can you use SubTexImage2D. Please correct me if I'm wrong. I have a suspicion as for the reason why CopyTexSubImage2D doesn't work. First of all, CopyTexImage2D only accepts GL_RGB as the internal format. GL_RGBA won't work, which seems to indicate that only RGB textures can be used as destination. I don't know the reason for this. Now, if you read the documentation for CopyTexSubImage2D: glCopyTexSubImage2D requires that the internal format of the currently bound texture is such that color buffer components can be dropped during conversion to the internal format, but new components cannot be added. For example, an RGB color buffer can be used to create LUMINANCE or RGB textures, but not ALPHA, LUMINANCE_ALPHA or RGBA textures. Since the color buffer seems to provide only RGB components, according to what we observed with CopyTexSubImage2D, then we should bound an RGB texture to use with CopyTexSubImage2D. But RGB textures allocated with TexImage2D are not functional at all. Every time I try to render an RGB texture, I get just a white rectangle irrespective of the color buffer I use to initialize the texture. Robert Green wrote: Great! I'm glad you got it to work. I'd like to recommend checking for the FrameBufferObject (FBO) extension and using that instead of this function when available. I think all of the ES2 chips support it. It's much faster, but you'll need to fallback to this when it's not supported. On Apr 18, 12:30 am, Andres Colubri andres.colu...@gmail.com wrote: I finally got glCopyTexImage2D t work, using a power-of-two texture as you suggested, and GL_RGB as internal format passed to glCopyTexImage2D (the internal format of the texture is GL_RGBA). glCopyTexSubImage2D doesn't seem to work though. As far as I understand from reading the OpenGL ES documentation, this call: glCopyTexSubImage2D(GL10.GL_TEXTURE_2D, 0, 0, 0, 0, 0, w, h); should be equivalent to: glCopyTexImage2D(GL10.GL_TEXTURE_2D, 0, GL11.GL_RGB, 0,0, w, h, 0) if the internal format of the bound texture is RGB. Am I correct? Thanks for the feedback. Robert Green wrote: Have you tried copying it to a power of 2 texture instead of the viewport dimensions? I'd test with 512x256 and see if that works. On Apr 16, 10:22 pm, Andres Colubri andres.colu...@gmail.com wrote: Any updates on this one? I have been trying to copy the contents of the back buffer into an opengl texture, but without success. I'm using the same method mentioned in the first post of this thread: gl.glCopyTexImage2D(GL10.GL_TEXTURE_2D, 0, GL11.GL_RGB, 0,0, w, h, 0); where w and h are the current width and height of the screen, respectively. This works fine on the emulator, but it returns garbage back into the texture on the actual device. The phone is a Nexus One. On Dec 11 2009, 11:56 pm, scott19_68 sw.cop...@gmail.com wrote: Works for me on my HTC Hero - I too could only use RGB and not RGBA. Emulator flips the textures upside down though... Does anyone else have more information regarding other phones? I have an app on the app store that uses this method and I am suspecting that it does not work for all current phones. I get really useful comments like 'Does not work on Tattoo - nuff said'... Not sure if the forum rules prevent me from mentioning my app so PM me if you'd like to help out and test - I'd definitely appreciate it very much and would be willing to help you out in return regarding OpenGL development questions... On Nov 21, 4:45 pm, Ben Gotow bengo...@gmail.com wrote: Hey everyone, I'm porting anOpenGLapp from the iPhone to Android, and I need to renderOpenGLcontent to a texture. Since framebuffers are not available inOpenGL1.0 and the DROID is the only Android phone to support the framebuffer extension, I'm trying to draw usingOpenGLand then copy the result into a texture usingglCopyTexImage2D. However, my initial findings are not good: 1.glCopyTexImage2Dworks in the Android emulator (OS v. 1.5), but only with GL10.GL_RGB, not GL_RGBA. If you try to copy the alpha data from the scene into the texture, you just get a completely white texture. 2.glCopyTexImage2Ddoesn't seem to work _at all_ on the Android G1.
[android-developers] Re: What's wrong with this location code?
Personally, I wouldn't be making any coding plans for using the Galileo system for location handling any time this decade. It will be amazing if the EU manages to organize it into a working system in any lifetime of current OS's or apps for that matter. Think of how long it took to get a working engine for their A400 program, nearly 20 years and the darn thing still isn't anything but a test program. The Galileo system currently has no in operation date and only two test satellites have been launched, none of them will be used in an operational program. A functional system is at least a decade away optimistically. I think you can safely ignore that possibility as a means of location detection on current Android devices. -John Coryat -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Selling outside the Android Market-- Use Google Checkout to sell direct from website??? SlideMe.Org??
On Sun, Apr 18, 2010 at 12:04 AM, Shane Isbell shane.isb...@gmail.comwrote: On Sat, Apr 17, 2010 at 7:57 PM, George | SlideME george.slid...@gmail.com wrote: Wish to also say thank you to Paul for uploading his application to SlideME, considering the negativity of this thread from an ex-partner. I am sure Paul and many others will be well looked after as best as we can and have their say one day. I'd prefer if Paul could have his say right now. Paul, does this mean you investigation turned up positive results for dev payments from SlideME? According to a post by Koxx on androidforums (on April 3, 2010), payment from SlideME was still in progress. George said SlideME already paid him. What gives? Something really doesn't add up now. This question is really simple, does SlideME handle it's obligation of paying out developers? SlideME says that it does. This is simple to verify. I've e-mailed Koxx(Francois) so I hope to have a response regarding this soon. I'll also e-mail out to other developers as well and will report back to this group, hopefully within the next week or two, so we can put this issue to rest one way or another. Shane -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: SlidingDrawer handle
Thanks, Bob! Unfortunately, it seems Launcher's handle is not accessible (at least it's not in the SDK). Bummer, will have to reinvent the wheel and make my own :-( -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Problems with big buttons using android:duplicateParentState
is there nobody who can help me? 2010/4/17 Marco Alexander Schmitz marco.alexander.schm...@googlemail.com Hi you all, today I've got a silly little problem and I hope you can help me out. I want to create a big button that contains a bitmap and some text. So I created a container (LinearLayout) with clickable=true. Inside this container there is an ImageButton with duplicateParentState=true and a TextView. The problem is that I can click everywhere in this container except on the ImageButton. In order to show that something is clicked I use an xml (with selector and items) as background for the ImageView. If you remove the clickable=true and duplicateParentState=true only the the ImageButton is clickable. How can I create such a big button as I want to? Here comes some code: First of all the button_green.xml with 2 different bitmaps: ?xml version=1.0 encoding=utf-8? selector xmlns:android=http://schemas.android.com/apk/res/android; item android:state_focused=false android:state_pressed=false android:drawable=@drawable/button_green_normal / item android:state_focused=true android:state_pressed=false android:drawable=@drawable/button_green_normal / item android:state_focused=false android:state_pressed=true android:drawable=@drawable/button_green_hover / item android:state_focused=true android:state_pressed=true android:drawable=@drawable/button_green_hover / /selector And then the main.xml with a top image and two big buttons: ?xml version=1.0 encoding=utf-8? RelativeLayout xmlns:android=http://schemas.android.com/apk/res/ android android:layout_width=fill_parent android:layout_height=fill_parent android:background=#141414 ImageView android:id=@+id/top android:layout_width=wrap_content android:layout_height=wrap_content android:src=@drawable/ top android:layout_alignParentTop=true / !-- important here: android:clickable=true -- LinearLayout android:id=@+id/bigbutton_1 android:layout_below=@+id/top android:layout_width=250dip android:layout_height=100dip android:background=@drawable/ bigbutton android:layout_centerHorizontal=true android:layout_marginTop=25dip android:clickable=true !-- important here: android:duplicateParentState=true -- ImageButton android:id=@+id/green_button android:layout_width=wrap_content android:layout_height=wrap_content android:background=@drawable/button_green android:layout_gravity=center_vertical android:duplicateParentState=true / TextView android:layout_width=wrap_content android:layout_height=wrap_content android:text=You can click me ! android:layout_gravity=center_vertical android:textColor=#BBB5A5 android:textSize=18dip / /LinearLayout !-- important here: android:clickable=true -- LinearLayout android:id=@+id/bigbutton_2 android:layout_below=@+id/bigbutton_1 android:layout_width=250dip android:layout_height=100dip android:background=@drawable/ bigbutton android:layout_centerHorizontal=true android:layout_marginTop=25dip android:clickable=true !-- important here: android:duplicateParentState=true -- ImageButton android:id=@+id/green_button android:layout_width=wrap_content android:layout_height=wrap_content android:background=@drawable/button_red android:layout_gravity=center_vertical android:textColor=#BBB5A5 android:textSize=18dip android:duplicateParentState=true / TextView android:layout_width=wrap_content android:layout_height=wrap_content android:text=Click me, too ! android:layout_gravity=center_vertical android:textColor=#BBB5A5 android:textSize=18dip / /LinearLayout /RelativeLayout Thanks for your help. I'll attach the project so you can play around... Greetings, Marco Screenshot: http://www.anddev.org/files/screenshot_652.png Project: http://www.anddev.org/download.php?id=2058 -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] aidl.exe is missing from tool directory
Hello All I had install SDK 2.0. I am not able to locate aidl.exe in tool directory. Please help to locate. Is there any location from where I can download? Thanks In Advance. Anurag -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] aidl.exe is missing from tool directory
Anurag Singh wrote: I had install SDK 2.0. I am not able to locate aidl.exe in tool directory. It will not be in the top-level tools directory, but in a platform-specific tools directory. For example, if you have installed the SDK in C:\SDK, you will find the Android 2.1 version of aidl.exe in C:\SDK\platforms\android-2.1\tools. Ant and Eclipse should each find it without issue, if you have everything configured properly. -- Mark Murphy (a Commons Guy) http://commonsware.com | http://twitter.com/commonsguy Android Consulting: http://commonsware.com/consulting -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] aidl.exe is missing from tool directory
Thanks a lot, I got the same. I had install SDK 2.0. I am not able to locate aidl.exe in tool directory. It will not be in the top-level tools directory, but in a platform-specific tools directory. For example, if you have installed the SDK in C:\SDK, you will find the Android 2.1 version of aidl.exe in C:\SDK\platforms\android-2.1\tools. Ant and Eclipse should each find it without issue, if you have everything configured properly. -- Mark Murphy (a Commons Guy) http://commonsware.com | http://twitter.com/commonsguy Android Consulting: http://commonsware.com/consulting -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Can i get this layout with List view??
Hi. please find the link to attached file, i need to have this kinda layout. is it possible?? well perhaps it is, but im not getting it how to do it. i want to specify the whole layout in the xml, but it gives runtime error here's the link to the blue print of desired layout: http://lh6.ggpht.com/_o9EYB0b5APY/S8s-coQE-KI/CrA/KJUl5ANBi88/desired%20layout.jpg here's my main.xml- ?xml version=1.0 encoding=utf-8? LinearLayout xmlns:android=http://schemas.android.com/apk/res/ android android:orientation=vertical android:layout_width=fill_parent android:layout_height=fill_parent RelativeLayout android:id=@+id/widget28 android:layout_width=wrap_content android:layout_height=wrap_content android:layout_x=17px android:layout_y=10px Button android:id=@+id/widget40 android:layout_width=wrap_content android:layout_height=wrap_content android:text=Button android:layout_alignTop=@+id/widget39 android:layout_toRightOf=@+id/widget38 /Button TextView android:id=@+id/widget39 android:layout_width=wrap_content android:layout_height=wrap_content android:text=TextView android:layout_alignParentBottom=true android:layout_alignParentLeft=true Button android:id=@+id/widget38 android:layout_width=wrap_content android:layout_height=wrap_content android:text=Button android:layout_alignParentTop=true android:layout_alignParentRight=true /Button /TextView /RelativeLayout ListView android:id=@+id/tweetList android:layout_width=wrap_content android:layout_height=wrap_content / /LinearLayout is anything wrong?? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Handling Orientation Changes in AppWidgets
We have created an AppWidget that takes user inputted text into an EditText and displays a calculated amount of text inside a TextView on the Home Screen. We calculate the amount of text based on the AppWidgetInfo.minWidth, minHeight attributes. We do this to simulate scrolling; we cut up the user-inputted text into chunks that will fit into the widget and swap them based on button clicks. When we save the widget with the device in Landscape mode, it calculates the appropriate amount of text for Landscape mode and displays it in the widget. The problem is when the user changes orientation of the device to Portrait mode (without opening the widget and resaving the text), the calculated amount of text for Landscape mode is still displayed. This also happens in the vice versa case (the user is in Portrait and saves, etc.) How can we tell our AppWidget to recalculate the amount of text displayed on screen orientation change? Is this possible? How would you solve this problem? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: requestLocationUpdates issue
If you're going to do that, why involve a handler
at all?
Now suppose, I use any other function in my service class instead of
handler and say I'm performing a time consuming task in that function.
If the onDestroy method of the service is called, I assume that it
will terminate my function abruptly. I'm not sure of this, but I
thought so and hence used the Handler thread to have a proper
shutdown. please correct me if I'm wrong. Also let me know the right
way to stop the service.
Finally, never, ever, call getApplicationContext(). The return value
is not useful to us mortals. Supply the service itself as the context.
I'm still not sure what are you saying. How will you supply the
service as the context ? Can you provide an example ?
On Apr 18, 2:56 am, Bob Kerns r...@acm.org wrote:
Actually, just because something is a background service does NOT mean
it is running in a different thread.
Background services run in the main thread. I suspect that this point
of confusion may be involved in your problem, though I don't quite
spot the problem.
Also, you have a handler there that basically loops forever. That's
kind of an oxymoron. If you're going to do that, why involve a handler
at all? If I parse it correctly, it's not the main thread it'll be
blocking, but still... if something in that thread is posting via that
thread's looper rather than the context, that won't be processed.
Finally, never, ever, call getApplicationContext(). The return value
is not useful to us mortals. Supply the service itself as the context.
To make things maximally confusing, getApplicationContext() will
appear to work in most circumstances. But it's always the wrong way to
get a context to use.
On Apr 17, 2:05 pm, Tejas tej...@gmail.com wrote:
Ah... I got this working. Still I'm not sure of the reason for this
(some thread issue I suppose) It would be great if someone can throw
some light on this.
I was instantiating the sensor class in a background service.So the
thread in which it was running was different than the main thread.
I was doing something like this:
public class ManagerService extends Service {
private final String LTAG = this.getClass().getName();
private volatile Looper mServiceLooper;
private volatile ServiceHandler mServiceHandler;
private final class ServiceHandler extends Handler{
public ServiceHandler(Looper myLooper) {
super(myLooper);
}
public void handleMessage(Message msg) {
Log.v(LTAG, handleMessage Called);
super.handleMessage(msg);
// Class Instantiation
GPSSensor gs = new GPSSensor();
gs.setContext(getApplicationContext());
gs.startSensing()
// Main service loop
while(CARuntimes.MainServiceRunFlag == true){
Log.v(LTAG, In service Loop);
// Do something
SystemClock.sleep(6);
}//while
}
}
public void onCreate() {
super.onCreate();
HandlerThread myThread = new HandlerThread(Main Service
Thread);
myThread.start();
mServiceLooper = myThread.getLooper();
mServiceHandler = new ServiceHandler(mServiceLooper);
}
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
Message msg = mServiceHandler.obtainMessage();
//msg.obj = blah blah
mServiceHandler.sendMessage(msg);
}
public void onDestroy() {
Log.v(LTAG, onDestroy called, quitting looper);
super.onDestroy();
mServiceLooper.quit();
}
public IBinder onBind(Intent arg0) {
return null;
}
}
So, I was instantiating the GPSSensor in the handleMessage method. I
moved this to the onStart method and it started working.
I'm not sure why it wasn't working earlier and now has started working
with this change.
It will be great if anyone can explain this.
Cheers,
Tejas
On Apr 17, 1:59 am, Tejas tej...@gmail.com wrote:
Hi,
My class listed below is not working. No idea whatsoever. The
onLocationChanged method is never getting called !
I checked the logs for any errors/exceptions. I have the required
permissions set (fine and course locations).
I doubt the Context I'm setting from the caller. I'm using
getApplicationContext() to pass to the setContext method in this
class.
Can anyone please help ?
public class GPSSensor implements CASensor {
[android-developers] Portrait/landscape question
I've got an app that I don't want to auto-rotate. Currently, I've got it set up so that it is always in portrait mode. However, I'd like to add a setting to my preferences where the user can choose either portrait or landscape mode. Is there a way to force screen rotation? Or, could I perhaps make two different layout XML files, one for portrait and one for landscape, and programmatically choose which to use? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Can i get this layout with List view??
I think, it's not right way. TextView android:id=@+id/widget39 android:layout_width=wrap_ content android:layout_height=wrap_content android:text=TextView android:layout_alignParentBottom=true android:layout_alignParentLeft=true Button android:id=@+id/widget38 android:layout_width=wrap_content android:layout_height=wrap_content android:text=Button android:layout_alignParentTop=true android:layout_alignParentRight=true /Button /TextView You have mention Button in a TextView. - Anurag Singh Hi. please find the link to attached file, i need to have this kinda layout. is it possible?? well perhaps it is, but im not getting it how to do it. i want to specify the whole layout in the xml, but it gives runtime error here's the link to the blue print of desired layout: http://lh6.ggpht.com/_o9EYB0b5APY/S8s-coQE-KI/CrA/KJUl5ANBi88/desired%20layout.jpg here's my main.xml- ?xml version=1.0 encoding=utf-8? LinearLayout xmlns:android=http://schemas.android.com/apk/res/ android android:orientation=vertical android:layout_width=fill_parent android:layout_height=fill_parent RelativeLayout android:id=@+id/widget28 android:layout_width=wrap_content android:layout_height=wrap_content android:layout_x=17px android:layout_y=10px Button android:id=@+id/widget40 android:layout_width=wrap_content android:layout_height=wrap_content android:text=Button android:layout_alignTop=@+id/widget39 android:layout_toRightOf=@+id/widget38 /Button TextView android:id=@+id/widget39 android:layout_width=wrap_content android:layout_height=wrap_content android:text=TextView android:layout_alignParentBottom=true android:layout_alignParentLeft=true Button android:id=@+id/widget38 android:layout_width=wrap_content android:layout_height=wrap_content android:text=Button android:layout_alignParentTop=true android:layout_alignParentRight=true /Button /TextView /RelativeLayout ListView android:id=@+id/tweetList android:layout_width=wrap_content android:layout_height=wrap_content / /LinearLayout is anything wrong?? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Portrait/landscape question
Specify in your manifest file into Activity block as android:ScreenOrientation=portrait I've got an app that I don't want to auto-rotate. Currently, I've got it set up so that it is always in portrait mode. However, I'd like to add a setting to my preferences where the user can choose either portrait or landscape mode. Is there a way to force screen rotation? Or, could I perhaps make two different layout XML files, one for portrait and one for landscape, and programmatically choose which to use? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Handling Orientation Changes in AppWidgets
Implement OnConfigurationChanged() function of your Activity and also mention in your manifest as android:configChanged=s=orientation How can we tell our AppWidget to recalculate the amount of text displayed on screen orientation change? Is this possible? How would you solve this problem? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Handling Orientation Changes in AppWidgets
Implement OnConfigurationChanged() function of your Activity and also mention in your manifest as android:configChanges=orientation How can we tell our AppWidget to recalculate the amount of text displayed on screen orientation change? Is this possible? How would you solve this problem? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Portrait/landscape question
On Sun, Apr 18, 2010 at 2:24 PM, Anurag Singh anusingh...@gmail.com wrote: Specify in your manifest file into Activity block as android:ScreenOrientation=portrait My question is, how do I change the orientation through my program? I want the user, through a settings option, to be able to change the orientation. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Portrait/landscape question
Why would you want to allow them to set it in settings when Android handles the rotation automagically? All you have to do is have a xml file in your layout directory, then for landscape have a xml file (with the same name) in your layout-land directory. When in portrait mode Android looks to the layout directory. When the phone is flipped to its side for landscape, Android looks to the layout-land directory. Justin On Sun, Apr 18, 2010 at 1:35 PM, Isaac Wagner isaacewag...@gmail.comwrote: On Sun, Apr 18, 2010 at 2:24 PM, Anurag Singh anusingh...@gmail.com wrote: Specify in your manifest file into Activity block as android:ScreenOrientation=portrait My question is, how do I change the orientation through my program? I want the user, through a settings option, to be able to change the orientation. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Do the USB drivers work on XP64?
I have two machines, one a WindowsXP32, and one 64. Both with AMD64 chips. I have eclipse on both, and the SDK on both. I'm using the usb drivers with the HTC Legend (http:// groups.google.com/group/android-developers/browse_thread/thread/ 2b54d2ce1202b04b/dd6f9152cd50d64b?lnk=gstq=usb+#dd6f9152cd50d64b). On the 32bit one things work just peachy. Device recognised, and debugging working fine. However, the 64bit one doesn't seem to recognise the device. Windows recognise's the device, and windows device manage shows it, but adb devices lists nothing, and nothing shows up when trying to manually launch from eclipse. Any ideas? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Defining an XML vertical line drawable
Hello, I'm trying to figure out how to define a verical line (1px thick) to be used as a drawable. to make a horizontal one, it's pretty straightforward: shape xmlns:android=http://schemas.android.com/apk/res/android; android:shape=line stroke android:width=1dp android:color=#FF/ size android:height=50dp / /shape The question is, how to make this line vertical? Yes, there are workarounds, such as drawing a rectangle shape 1px thick, but that complicates the drawable xml, if it consists of multiple item elements. Anyone had any chance with this? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Portrait/landscape question
On Sun, Apr 18, 2010 at 3:25 PM, Justin Giles jtgi...@gmail.com wrote: Why would you want to allow them to set it in settings when Android handles the rotation automagically? All you have to do is have a xml file in your layout directory, then for landscape have a xml file (with the same name) in your layout-land directory. When in portrait mode Android looks to the layout directory. When the phone is flipped to its side for landscape, Android looks to the layout-land directory. Justin sigh why is it that when I ask a simple question I get harassed? I didn't want to get into a big long discussion of why something makes sense or doesn't. I understand my problem domain and have a specific portion of that domain that I am solving right now. OK, since it appears I can't get a simple answer without a long explanation My application is one such that the user moves their phone around a lot. During this movement I want to keep the orientation constant -- I DON'T WANT ANDROID TO HANDLE THE ROTATION. So, in my manifest I set the orientation to portrait to prevent Android from mucking with the orientation. However, I am now making some additions and would like the user to be able to choose portrait or landscape mode, but whatever they choose needs to stick. Again, I don't want Android to handle the rotation. As the phone is moved around I want whichever orientation they chose to stick. Does that make sense? Now, how do I do this? How do I force the orientation to my preference? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Is the bad MotionEvent/Touch slowdown stuff actually fixed on first-gen 2.1 updates?
The fundamental issue is that there are too many instructions per
event being executed. There is no way around it other than optimizing
the event handling code in KeyInputQueue. No amount of waiting or
sleeping will fix that because those events must run through that code
and that code appears to be very slow. It surprises me because it's
truly performance critical code and this issue has been known since
1.1/1.5 and it still doesn't appear to be fixed in master. I'm
looking at it now and the author(s) didn't even follow Android's best
optimization practices. Simple things like declaring virtuals with
local variables aren't done.
For a moment today I was considering taking the input stack (EventHub,
KeyInputQueue and InputDevice) and hacking it into my own input stack
which reads off the event devices much more efficiently but I can't
find any way to stop the system stack from running and consuming CPU,
so that hack is out (and probably good because I really didn't want to
go there - waste of time and probably wouldn't work right anyway).
In my activity:
public boolean onTouchEvent(MotionEvent e) {
return false;
}
And system_server still consumes about 36% of the CPU while moving my
finger around. That proves there is nothing a developer can do to
work around this. I think I'll take this issue to the platform group
now and try to file more specific bugs.
On Apr 18, 10:38 am, Ralf Schneider li...@gestaltgeber.com wrote:
I have already talked a lot about the touch slow down in this forum.
There is another observation I would like to add, may be this can help to
track the problem down.
One of my projects is an Argumented Reality Game.
Of course this kind of App eats energy (CPU cycles) like crazy:
In my app I process:
The camare, OpenGL graphics, Pseudo-3D-Sound mixing (8 simultaneous samples
+ ogg-music), 2 constant sensor imputs (acceleration, magnetic) and
additional input from trackball, hardware keys and the touch screen.
The largest slow down occurs with the touch-events.
But the next big slow down occurs with the accleration and magnetic events!
I gained up to 4 FPS on a N1 by switching from SENSOR_DELAY_FASTEST to
SENSOR_DELAY_GAME.
= So I just wonder: May be the slow down is in no way specific to touch
events! Instead the whole input-queue-event handling is just horribly slow.
As everyonw has observed: Touching the screen will trigger (flood) lots of
events - This is similar as enabling input from other sensors - which can
slow down the app in a compareable way, too!
The main differences is only: Touching the screen will still trigger more
event than using a sesnor in *SENSOR_DELAY_FASTEST*. So the slow down
appears as less drastically...
After working a while with Android, I must say:
The design and architecture of the Java-API seems to be nice and well done
most of the time.
But the execution and implementation of the software stack as a whole seems
to be just slow, slow, slow, slow, All this doesn't matter if you have
lots of servers with many cores (ENTERPRISE!) but for an
embedded-soft-realtime-device I expect more!
IMHO the OS on an embedded device with a 1 GHZ CPU should not use more than
1% of the CPU to process around thousand events per seconds - and even this
i would consider slow.
Anyway, this time I resist to go into a deeper rant.
Kind Regards,
Ralf
2010/4/18 Robert Green rbgrn@gmail.com
I've tried sleep() and have switched to wait(1000), notify() / yield()
as outlined by some other devs. I have no empirical evidence that one
works any better than the other. Both consume a range between 25-36%
of the CPU by system_process while touching. That's a full third of
the CPU of the device just to give me coordinates off the touch
screen. No one has a good workaround for this it seems and seeing the
problem on the 2.1 emulator makes me think that Google Android devs
have swept it aside with a casual It's good enough. Let's see
replica island switch to constant-touch controls (virtual joystick or
virtual dpad) and retain framerates over 20 with that input scheme on
any MSM7200-based device.
I'm a little frustrated. I've spent the last 6 months writing two
really nice games (Best work I've ever done in my 11 year programming
career, in fact) and this is their main issue now. They run fantastic
on the Droid and N1, of course, and even get solid framerates on the
MSM7200 up until you touch the screen... Then it's lag-city all the
way home.
I'm ready to put up a decent cash bounty for someone that can provide
a reliable solution to this that doesn't involve me taking away the
constant-touch controls. Contact me if you have experience fixing
this problem and are sure you can do it.
On Apr 18, 5:41 am, Mario Zechner badlogicga...@gmail.com wrote:
I can confirm that the issue is still there in Android 2.0.1 on my
Milestone as well (and more pronounced) on my HTC Hero
Re: [android-developers] Portrait/landscape question
Isaac Wagner wrote: On Sun, Apr 18, 2010 at 3:25 PM, Justin Giles jtgi...@gmail.com wrote: Why would you want to allow them to set it in settings when Android handles the rotation automagically? All you have to do is have a xml file in your layout directory, then for landscape have a xml file (with the same name) in your layout-land directory. When in portrait mode Android looks to the layout directory. When the phone is flipped to its side for landscape, Android looks to the layout-land directory. Justin sigh why is it that when I ask a simple question I get harassed? This discussion list gets a lot of people asking questions where they are barking up the wrong tree. It is commonplace to inquire about their rationale for barking up that tree and steer them in the direction of more common patterns. Sometimes, the barking is indeed up the correct tree, but that may not always be obvious from the question. If you consider that to be harassment, you may wish to choose a different means of getting Android developer support. OK, since it appears I can't get a simple answer without a long explanation My application is one such that the user moves their phone around a lot. During this movement I want to keep the orientation constant -- I DON'T WANT ANDROID TO HANDLE THE ROTATION. So, in my manifest I set the orientation to portrait to prevent Android from mucking with the orientation. However, I am now making some additions and would like the user to be able to choose portrait or landscape mode, but whatever they choose needs to stick. Again, I don't want Android to handle the rotation. As the phone is moved around I want whichever orientation they chose to stick. Does that make sense? Now, how do I do this? How do I force the orientation to my preference? You can try the combination of setRequestedOrientation() in onCreate() (and from the menu or wherever the user chooses their preference) and android:configChanges=keyboardHidden|orientation in your manifest. I have not used setRequestedOrientation() personally. -- Mark Murphy (a Commons Guy) http://commonsware.com | http://twitter.com/commonsguy Android Training in NYC: 30 April-2 May 2010: http://guruloft.com -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Bluetooth pairing request
But when the devices are paired using Settings/Wireless networks/Wi- Fi then the notification is skipped and the dialog is shown immediately. I need the same... On Apr 14, 11:15 am, VovaN vladimir.nedashkivs...@gmail.com wrote: If you click on notification dialog'll appear. It's Android behavior. On Mar 30, 11:02 am, Rafał Grzybowski aguyngue...@gmail.com wrote: Hello there When myBluetoothapplication is about to create SPP connection to the unpaired remote device, pairing notification is displayed. From the documentation I can see that pairing request can display a dialog or sent notification. I'd like to know what logic causes my app to sent notification than display a regular pairing dialog. Maybe I'm blind but the problem is I were not aware of that notification and was fighting with pairing problem for few hours :) And I'd really would prefer my app to trigger dialog display. Thank you, Best regards Rafa³ Grzybowski -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Performance comparison NDK vs SDK
Pre-scale the background image to match the device resolution. Split the background image in texture tiles like 256x256, 128x128, Blitt the tiles separately. 2010/4/8 lixin China smallli...@gmail.com Hi Schneider: As you said avoid scale the texture. Could you tell me the solution how to render background texture(480x320 to full screen) without scale. On Apr 7, 5:28 am, Ralf Schneider li...@gestaltgeber.com wrote: If your performance problem is only related to putting sprites on the screen, don't expect an improvement by witching to the NDK. I don't know how you are currently doint it, but these are some general remarks: Use OpenGL ES to draw the sprites. Limit your textures to 256x256. 512x512 seems to be slower on some devices. Use texture atlases for smaller sprites - To avoid state changes in OpenGL Use VBOs Avoid textures with alpha channels on slower devices. Don't scale or rotate your sprites on slower devices. Slower devices often have a fast path for simple blitt operations. = Check if point sprites are available on the device. If yes, use them. Use 16 Bit (565) textures. Watch the video I have posted in the previous post. The speaker has some valuable tips for performance improvements. Anyway, 100 Sprites is not very much if you are already using OpenGL... So may be you are right and the only solution is to target high end devices for your next project. 2010/4/6 MrChaz mrchazmob...@googlemail.com I was hoping that someone had tried a little test app with a simple scene. I think I've pretty much reached the limits in terms of get sprites on the screen at an acceptable frame rate (at least on G1 type hardware). It seems, at least for what I'm doing, the limit is about 100 sprites but for my next project I'd like a bit more. Maybe I'll just stop making games for 'old' hardware and concentrate on the Droid and N1. I can't say I like the idea of ignoring half the market :( -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en To unsubscribe, reply using remove me as the subject. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Portrait/landscape question
This discussion list gets a lot of people asking questions where they are barking up the wrong tree. It is commonplace to inquire about their rationale for barking up that tree and steer them in the direction of more common patterns. Sometimes, the barking is indeed up the correct tree, but that may not always be obvious from the question. If you consider that to be harassment, you may wish to choose a different means of getting Android developer support. My apologies. I agree and do appreciate the support I've received from this list. You can try the combination of setRequestedOrientation() in onCreate() (and from the menu or wherever the user chooses their preference) and android:configChanges=keyboardHidden|orientation in your manifest. I have not used setRequestedOrientation() personally. I'll take a look at that. Thanks. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Native Bluetooth programming
I'd like to create native library for Java (using Android NDK) for Bluetooth. I have read a sample from http://blog.bruary.net/2009/07/android-bluetooth-hacking-using-ndk.html but I cannot get hci_get_route working on my HTC Legend. It returns ENODEV, Bluetooth is enabled and appropriate permissions are in the application manifest. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] app that 'animates' drawing
I'm trying to learn about Android programming by rewriting a C app
I've moved from DOS to X-windows to Windows as a learning tool. It's
just a silly little app that draws symmetrical 'game of life' patterns
on the screen in a kaleidoscopic fashion. It's structured so that the
patterns do their own animations. I.e. there's a 'Life' class that
produces the next generation and redraws itself from the center
outward, inserting delays to produce a kaleidoscopic effect.
I've got it so that the patterns draw - I took the LunarLander sample
as a starting point, and an drawing on a SurfaceView. But my problem
is with timing the 'animations'. I'm not doing traditional animation,
where I build a whole frame and then draw it, but the surface seems
to want to draw itself completely on each iteration of my loop, so my
inserted sleep's don't insert delay in the right places.
So my questions:
1. Is there a more direct way to write to the screen than via a
SurfaceView? If I did that, would the various steps of my 'animation'
occur as I drew them, producing the desired effect.
2. If such a drawing method exists, would I be wasting my time
learning how to use it?
3. What's the 'standard' way to do this kind of animation?
Thanks.
By the way, my main loop (lifted from the LunarLandar example) looks
like:
public void run() {
while (mRun) {
mCanvas = null;
try {
mCanvas = mSurfaceHolder.lockCanvas(null);
synchronized (mSurfaceHolder) {
if (mMode == STATE_RUNNING)
doUpdate();
doDraw();
}
} finally {
if (mCanvas != null) {
mSurfaceHolder.unlockCanvasAndPost(mCanvas);
mCanvas = null;
}
}
}
}
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Re: [android-developers] Re: SlidingDrawer handle
It looks like you have to dig a little deeper. The images and the layout referencing them are in the Launcher package, which is open source. http://android.git.kernel.org/?p=platform/packages/apps/Launcher.git;a=blob;f=res/layout-land/launcher.xml On Sun, Apr 18, 2010 at 12:04 PM, Pinheiro rui.c.pinhe...@gmail.com wrote: Thanks, Bob! Unfortunately, it seems Launcher's handle is not accessible (at least it's not in the SDK). Bummer, will have to reinvent the wheel and make my own :-( -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Do the USB drivers work on XP64?
Nope, they don't work on XP-64. On Apr 18, 12:28 pm, ThomasWrobel darkfl...@gmail.com wrote: I have two machines, one a WindowsXP32, and one 64. Both with AMD64 chips. I have eclipse on both, and the SDK on both. I'm using the usb drivers with the HTC Legend (http:// groups.google.com/group/android-developers/browse_thread/thread/ 2b54d2ce1202b04b/dd6f9152cd50d64b?lnk=gstq=usb+#dd6f9152cd50d64b). On the 32bit one things work just peachy. Device recognised, and debugging working fine. However, the 64bit one doesn't seem to recognise the device. Windows recognise's the device, and windows device manage shows it, but adb devices lists nothing, and nothing shows up when trying to manually launch from eclipse. Any ideas? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Is the bad MotionEvent/Touch slowdown stuff actually fixed on first-gen 2.1 updates?
For fun i extended the example i posted earlier. It now feature cpu
usage output derrived from /proc/stat which should be enough to given
an indication of the slow down occuring due to touch events.
The setup:
- A GLSurfaceView
- An OnTouchListener that does nothing but return true
- A simple renderer thread which is throttled via a Thread.sleep(200)
to 5 frames per second which outputs the frames per second as well as
the cpu usage
Observation on Milestone with 2.0.1:
- load without touching the screen - 4%-12%
- load with touching the screen - 24%-44%
due to the way i measure the cpu usage it of course fluctuates quiet a
bit, the overall tendency can be easily derrived though.
You can find the apk at http://www.file-pasta.com/file/1/touchflood.apk,
the Eclipse project with all the source can be found at
http://www.file-pasta.com/file/0/touchflood.zip.
On 18 Apr., 22:18, Robert Green rbgrn@gmail.com wrote:
The fundamental issue is that there are too many instructions per
event being executed. There is no way around it other than optimizing
the event handling code in KeyInputQueue. No amount of waiting or
sleeping will fix that because those events must run through that code
and that code appears to be very slow. It surprises me because it's
truly performance critical code and this issue has been known since
1.1/1.5 and it still doesn't appear to be fixed in master. I'm
looking at it now and the author(s) didn't even follow Android's best
optimization practices. Simple things like declaring virtuals with
local variables aren't done.
For a moment today I was considering taking the input stack (EventHub,
KeyInputQueue and InputDevice) and hacking it into my own input stack
which reads off the event devices much more efficiently but I can't
find any way to stop the system stack from running and consuming CPU,
so that hack is out (and probably good because I really didn't want to
go there - waste of time and probably wouldn't work right anyway).
In my activity:
public boolean onTouchEvent(MotionEvent e) {
return false;
}
And system_server still consumes about 36% of the CPU while moving my
finger around. That proves there is nothing a developer can do to
work around this. I think I'll take this issue to the platform group
now and try to file more specific bugs.
On Apr 18, 10:38 am, Ralf Schneider li...@gestaltgeber.com wrote:
I have already talked a lot about the touch slow down in this forum.
There is another observation I would like to add, may be this can help to
track the problem down.
One of my projects is an Argumented Reality Game.
Of course this kind of App eats energy (CPU cycles) like crazy:
In my app I process:
The camare, OpenGL graphics, Pseudo-3D-Sound mixing (8 simultaneous samples
+ ogg-music), 2 constant sensor imputs (acceleration, magnetic) and
additional input from trackball, hardware keys and the touch screen.
The largest slow down occurs with the touch-events.
But the next big slow down occurs with the accleration and magnetic events!
I gained up to 4 FPS on a N1 by switching from SENSOR_DELAY_FASTEST to
SENSOR_DELAY_GAME.
= So I just wonder: May be the slow down is in no way specific to touch
events! Instead the whole input-queue-event handling is just horribly slow.
As everyonw has observed: Touching the screen will trigger (flood) lots of
events - This is similar as enabling input from other sensors - which can
slow down the app in a compareable way, too!
The main differences is only: Touching the screen will still trigger more
event than using a sesnor in *SENSOR_DELAY_FASTEST*. So the slow down
appears as less drastically...
After working a while with Android, I must say:
The design and architecture of the Java-API seems to be nice and well done
most of the time.
But the execution and implementation of the software stack as a whole seems
to be just slow, slow, slow, slow, All this doesn't matter if you have
lots of servers with many cores (ENTERPRISE!) but for an
embedded-soft-realtime-device I expect more!
IMHO the OS on an embedded device with a 1 GHZ CPU should not use more than
1% of the CPU to process around thousand events per seconds - and even this
i would consider slow.
Anyway, this time I resist to go into a deeper rant.
Kind Regards,
Ralf
2010/4/18 Robert Green rbgrn@gmail.com
I've tried sleep() and have switched to wait(1000), notify() / yield()
as outlined by some other devs. I have no empirical evidence that one
works any better than the other. Both consume a range between 25-36%
of the CPU by system_process while touching. That's a full third of
the CPU of the device just to give me coordinates off the touch
screen. No one has a good workaround for this it seems and seeing the
problem on the 2.1 emulator makes me think that Google Android devs
have swept it aside with a casual It's good enough. Let's
[android-developers] Re: app that 'animates' drawing
Poking around here some more, it seems like the problem is the way SurfaceView double-buffers output. You kind of have to draw the entire surface every time. I had tried unlocking and relocking on every 'delay' call, but that didn't work either, presumably because the relock produced an incomplete buffer, and adding more data to that and posting it didn't draw the whole picture. I guess the only mechanism that would work is to maintain a bitmap of the whole Surface and draw *that* incrementally. Then on each 'delay' request, lock the Surface and copy the entire bitmap in to draw the next 'frame'. Ouch. Does this sound 'right'? Or is there a better way? Thanks, Rob -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Selling outside the Android Market-- Use Google Checkout to sell direct from website??? SlideMe.Org??
Hi, after a long talk with George and some 'lost' emails, I finally managed to be paid few days ago (April 8). The main problem was with invoice. It is very difficult to know what is needed by SlideMe to get your payout. You need to request payout balance (we should receive a summary each month ? I never received them), then edit yourself the invoice with all sales keys (!!!), print it, sign it, scan it, and sent it !!! ouch ! I had to request their help for this (thanks George for your help on this). The fact is here : it's difficult and not clear. I'll may give a shot to AndAppStore. ciao, Francois @ Koxx -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Transfer List of specific objects across intents
Hi, I wish to send a list of type MyFriend from one activity to another. I dont find a bundle.put.. for such an requirement in the api's. Is there a way somebody could suggest through which I could transfer different kinds of data. Thanks, Raqeeb -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Compiling FFMpeg as NDK Shared library
Has any one successfully compiled ffmpeg for use as a shared library?? I tried the doing what http://oo-androidnews.blogspot.com/2010/02/ffmpeg-and-androidmk.html says but i keep getting the following message on compile Android NDK: Building for application 'ffmpeg-org' make: *** No rule to make target `ffmpeg-org', needed by `ndk-app- ffmpeg-org'. Stop. Has any one encountered this??? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Selling outside the Android Market-- Use Google Checkout to sell direct from website??? SlideMe.Org??
Cool, at least something is coming out of SlideME. George, I have a general policy of not attacking people personally, but in this case, I'll make an exception because I think it is warranted. You are a dishonest individual. You came on this list and publicly accused me of being the reason developers did not get paid. And yet, it took 5 months after I left SlideME for you to resolve and pay a simple invoice. Yet you gave a completely (dishonest) impression on this list that it was my fault. You also blamed your recently botched rollout of SAM on me (4 months after I left). In addition, you were dishonest in regards to your replies to Martin on this list. SlideME needs to take responsibility for its actions. Stop pointing fingers to others. Stop spinning things. Just cleanup the payout mess. Developers are saying it's not working for them and is likely the cause of all these angry posts from developers. Deleting these posts from SlideME forums raises a lot of eyebrows and was no small factor in why I brought these issues forward. And for god's sake, stop blaming me for all SlideME's problems. I left 5 months ago. Shane On Sun, Apr 18, 2010 at 2:47 PM, Koxx kox...@gmail.com wrote: Hi, after a long talk with George and some 'lost' emails, I finally managed to be paid few days ago (April 8). The main problem was with invoice. It is very difficult to know what is needed by SlideMe to get your payout. You need to request payout balance (we should receive a summary each month ? I never received them), then edit yourself the invoice with all sales keys (!!!), print it, sign it, scan it, and sent it !!! ouch ! I had to request their help for this (thanks George for your help on this). The fact is here : it's difficult and not clear. I'll may give a shot to AndAppStore. ciao, Francois @ Koxx -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: requestLocationUpdates issue
OK, I understand your thinking a bit better, so hopefully I can explain a bit better. onDestroy() is only called when your application is idle. The system will NEVER directly call a lifecycle method except when the main thread is idle If you are running some long-lived function from, say, onStart(), or a handler in the main thread. All of these are handled one at a time by the main thread's Looper. So there will be no abrupt termination of your function when onDestroy() is called. That only happens if it kills off the process. Which is a lot more likely to happen if you block the main thread -- after a while, the user will get a dialog offering to kill or wait for the busy process! Java used to support interrupting and abruptly terminating threads. However, there is absolutely NO way to make this a safe operation. Android does kill off processes, which can leave things outside the process in an inconsistent state, but that's not as bad as having your application still running, but in an inconsistent state internally! So abruptly force-quitting a method is not part of the model of any Java system. (But you can still check, and throw an exception to get out of a loop -- that will properly invoke all finally() clauses on the way out, etc.). It's hard for me to tell you the proper way to stop your service, because it depends on just what you're doing. You have part of the idea, by checking for a termination flag in your loop. You can set that in your onDestroy() method -- akin to what you're trying to do with your call to the undocumented Looper.quit() method. But what you want to do is to set your CARuntimes.MainServiceRunFlag instead. (Except I'd make that an instance member of your Service class, rather than a static of some other class. Better modularity, though you can make it work this way). It looks to me like what you're really trying to do, is what the system already provides for you better -- IntentService. I really don't know what their intent was, calling it this -- I think I'd call it ThreadedService, since the relevant point is that it runs your code in a separate thread. Or maybe HandlerThreadService, since it uses a handler to serialize the requests for work. You still have to be careful about things that queue up things to the current thread's looper -- like Toast, for example. Any deferred processing you want to queue up to a handler you set up in the IntentService's onCreate method (i.e. on the main thread). Anyway, the purpose of HandlerThread's and Handler's is not clean shutdown, but rather the queuing of messages via a Looper and associated MessageQueue. If you're only handling one message, ever, then creating your own thread would make sense. An AsyncTask would be a good choice if you're only running for a short time (but too long for the main thread). But if this is something that runs for an extended period of time, it would potentially block other uses of AsyncTask, so your own thread is a better choice. So anyway, to summarize -- Handler's, HandlerThread's, and IntentService give you a way to do one thing at a time in another thread. AsyncTasks give you a way to do a small number of small things in parallel (in some versions of the system, one thing at a time). Long-lived things need their own threads -- HandlerThread and IntentService can provide this. You stop a thread by testing for some condition in the loop in the thread. If the thread needs to wait, use wait(), and use notifyAll() to wake it up after you set the flag. Be sure to use the synchronized keyword to coordinate in this case! And if you loop within a handler, you're basically occupying that thread while you're looping. So be careful not to queue up any additional work to that thread's looper. (And often it needs to go to the main thread anyway -- for example, all GUI operations need to be run there). Sorry I can't make all that simple! Threading is never really simple. But there are simple patterns, and if you carefully stay within those simple patterns, you can avoid most of the complexity. Finally, about getApplicationContext() -- unfortunately, in the released versions of the documentation, there are some bad examples around this. I understand they've been fixed for the next release of the SDK. But if you're in an Activity or a Service, you just supply that activity or service, via the this pseudo-variable. However, in your case, your use isn't directly in the service, but in your nested ServiceHandler class, so this will refer to that instance instead. But you can still refer to the outer instance's this, by writing ManagerService.this. You could also arrange to pass the context in ass a parameter when you create your ManagerService -- but since the system already does that work for you with a nested class, there's no reason. Just replace getApplicationContext() with ManagerService.this, and you're set. . On Apr 18, 11:08 am, Tejas tej...@gmail.com wrote: If you're going to do that, why involve a
[android-developers] Re: app that 'animates' drawing
I guess the only mechanism that would work is to maintain a bitmap of the whole Surface and draw *that* incrementally. Then on each 'delay' request, lock the Surface and copy the entire bitmap in to draw the next 'frame'. Ouch. Tried this, and it seems to work. Still eager for suggestions if this seems as awkward to you as it does to me. Thanks, Rob -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: onSharedPreferenceChanged() Not Called in Live Wallpaper (WallpaperService) Engine
Operator head spacing
I just looked at AndroidManifest.xml again and I noticed I
accidentally left the configuration for the service to run in a new
process each time instantiated (via android:process=:myprocessname.
I was experimenting with this at one point during another debugging
session. If it starts with a colon, a new process is given each time
and that would explain why I was getting different SharedPreferences
instances...they were different PIDs, which I did not notice at first
either.
The SharedPreferences API docs state Note: currently this class does
not support use across multiple processes. This will be added later.
So, I just removed the android:process configuration from
AndroidManifest.xml and things are working as expected.
On Apr 16, 3:39 pm, shaun shashepp...@gmail.com wrote:
Well, I tested one of the sample applications (http://code.google.com/
p/androgames-sample/) and both the Engine's and Settings'
onSharedPreferenceChanged() methods are called and with the same
instance ofSharedPreferencesobject. So, apparently something is
different in myLiveWallpaper.
I went through everything top to bottom and made some small (I'd say
very minor) tweaks to my code/config to further match the example and
still the same results - the Engine's onSharedPreferenceChanged()
method is not called while the Settings' is.
I also noticed thatSharedPreferencesinstance returned in the Engine
constructor (via prefs =
LiveWallpaperService.this.getSharedPreferences(PREFS_NAME,
0)) is a different object instance than that passed in to
onSharedPreferenceChanged() of the Settings class. Nowhere do I
create a new instance ofSharedPreferencesnor do I have any other
code related to shared preferences outside of what is being discussed
here. So, Android is serving up 2 separate instances ofSharedPreferencesfor
some reason Why?
I am boggled. Please help me think.
On Apr 16, 11:45 am, shaun shashepp...@gmail.com wrote:
I am experiencing something strange with aLiveWallpaper. I very
closely followed several examples out there onLiveWallpapers in
regards to shared preference settings (e.g. Android sample app Cube
LiveWallpaper).
The Engine implements
SharedPreferences.OnSharedPreferenceChangeListener and the pertienent
code in Engine looks like this:
public static final String PREFS_NAME = some-name;
Engine() {
prefs = LiveWallpaperService.this.getSharedPreferences(PREFS_NAME,
0);
prefs.registerOnSharedPreferenceChangeListener(this);
}
public void onSharedPreferenceChanged(SharedPreferences
sharedPreferences, String key) {
Log.e(getClass().getSimpleName(), on shared preference
changed);
}
NOTE: I never unregister the Engine instance as a shared prefs
listener. Although, I did move some things around to onCreate and
onDestroy (added the unregister there) and had no impact as far as I
could tell.
The Settings class extends PreferenceActivity and implements
SharedPreferences.OnSharedPreferenceChangeListener as well. And since
that class has little code here is the body:
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
getPreferenceManager().setSharedPreferencesName(Engine.PREFS_NAME);
addPreferencesFromResource(R.xml.settings);
getPreferenceManager().getSharedPreferences().registerOnSharedPreferenceCha
ngeListener(this);
}
�...@override
protected void onDestroy() {
getPreferenceManager().getSharedPreferences().unregisterOnSharedPreferenceC
hangeListener(this);
super.onDestroy();
}
public void onSharedPreferenceChanged(SharedPreferences
sharedPreferences, String key) {
Log.e(getClass().getSimpleName(), on shared preference
changed);
}
The only thing coming out in the log is from the Settings class for on
shared pref change. Anyone have any idea why?
In the implementations I've found forLiveWallpapershared prefs
settings, the Engine constructor either uses the shared preferences or
calls to onSharedPreferenceChanged() directly. It seems like those
other examples may be experiencing the same thing I described above,
and they worked around it!?!?
I do admit I have not taken the example code from others and tried it
out to see if the Engine onSharedPreferenceChanged() gets called. I
will do that tonight or this weekend.
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[android-developers] Re: Clear defaults programmatically
This clears the preferences, but not the default flag set by a user when a Intent Chooser is shown to him/her. Am I right? How can I get back the Intent Chooser Dialog when a user previously set my app as default. I know you can go to Manage Applications and click clear defaults but how do I do this in code? On Apr 18, 3:01 pm, Menion menion.as...@gmail.com wrote: I'm using this code ... hope it helps PreferenceManager.getDefaultSharedPreferences(context).edit().clear().commi t(); On Apr 16, 11:09 am,Bonifazbonifaz.kaufm...@gmail.com wrote: Does anyone know how to clear defaults of my own app by code. I know that a user can always go to Manage Applications, find my app and click the button there to clear previously assigned default actions. But for most users this isn't intuitive at all. I would like to offer my customers a solution to clear defaults within my own app if they don't like to use my app as a replacement for a specific action anymore. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Can i get this layout with List view??
Oops! Sorry.. here is the correct one- ?xml version=1.0 encoding=utf-8? LinearLayout xmlns:android=http://schemas.android.com/apk/res/ android android:orientation=vertical android:layout_width=fill_parent android:layout_height=fill_parent RelativeLayout android:id=@+id/widget28 android:layout_width=wrap_content android:layout_height=wrap_content android:layout_x=17px android:layout_y=10px Button android:id=@+id/widget40 android:layout_width=wrap_content android:layout_height=wrap_content android:text=Button android:layout_alignTop=@+id/widget39 android:layout_toRightOf=@+id/widget38 /Button TextView android:id=@+id/widget39 android:layout_width=wrap_content android:layout_height=wrap_content android:text=TextView android:layout_alignParentBottom=true android:layout_alignParentLeft=true /TextView Button android:id=@+id/widget38 android:layout_width=wrap_content android:layout_height=wrap_content android:text=Button android:layout_alignParentTop=true android:layout_alignParentRight=true /Button /RelativeLayout ListView android:id=@+id/tweetList android:layout_width=wrap_content android:layout_height=wrap_content / /LinearLayout Please tell. On Apr 18, 11:11 pm, Anurag Singh anusingh...@gmail.com wrote: I think, it's not right way. TextView android:id=@+id/widget39 android:layout_width=wrap_ content android:layout_height=wrap_content android:text=TextView android:layout_alignParentBottom=true android:layout_alignParentLeft=true Button android:id=@+id/widget38 android:layout_width=wrap_content android:layout_height=wrap_content android:text=Button android:layout_alignParentTop=true android:layout_alignParentRight=true /Button /TextView You have mention Button in a TextView. - Anurag Singh Hi. please find the link to attached file, i need to have this kinda layout. is it possible?? well perhaps it is, but im not getting it how to do it. i want to specify the whole layout in the xml, but it gives runtime error here's the link to the blue print of desired layout: http://lh6.ggpht.com/_o9EYB0b5APY/S8s-coQE-KI/CrA/KJUl5ANBi88... here's my main.xml- ?xml version=1.0 encoding=utf-8? LinearLayout xmlns:android=http://schemas.android.com/apk/res/ android android:orientation=vertical android:layout_width=fill_parent android:layout_height=fill_parent RelativeLayout android:id=@+id/widget28 android:layout_width=wrap_content android:layout_height=wrap_content android:layout_x=17px android:layout_y=10px Button android:id=@+id/widget40 android:layout_width=wrap_content android:layout_height=wrap_content android:text=Button android:layout_alignTop=@+id/widget39 android:layout_toRightOf=@+id/widget38 /Button TextView android:id=@+id/widget39 android:layout_width=wrap_content android:layout_height=wrap_content android:text=TextView android:layout_alignParentBottom=true android:layout_alignParentLeft=true Button android:id=@+id/widget38 android:layout_width=wrap_content android:layout_height=wrap_content android:text=Button android:layout_alignParentTop=true android:layout_alignParentRight=true /Button /TextView /RelativeLayout ListView android:id=@+id/tweetList android:layout_width=wrap_content android:layout_height=wrap_content / /LinearLayout is anything wrong?? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Can i get this layout with List view??
ohh, all of the tags didnt have '' with them. I have already added them but they weren't copied dont know why, so thats not a problem. On Apr 19, 6:12 am, SheikhAman shekh.a...@gmail.com wrote: Oops! Sorry.. here is the correct one- ?xml version=1.0 encoding=utf-8? LinearLayout xmlns:android=http://schemas.android.com/apk/res/ android android:orientation=vertical android:layout_width=fill_parent android:layout_height=fill_parent RelativeLayout android:id=@+id/widget28 android:layout_width=wrap_content android:layout_height=wrap_content android:layout_x=17px android:layout_y=10px Button android:id=@+id/widget40 android:layout_width=wrap_content android:layout_height=wrap_content android:text=Button android:layout_alignTop=@+id/widget39 android:layout_toRightOf=@+id/widget38 /Button TextView android:id=@+id/widget39 android:layout_width=wrap_content android:layout_height=wrap_content android:text=TextView android:layout_alignParentBottom=true android:layout_alignParentLeft=true /TextView Button android:id=@+id/widget38 android:layout_width=wrap_content android:layout_height=wrap_content android:text=Button android:layout_alignParentTop=true android:layout_alignParentRight=true /Button /RelativeLayout ListView android:id=@+id/tweetList android:layout_width=wrap_content android:layout_height=wrap_content / /LinearLayout Please tell. On Apr 18, 11:11 pm, Anurag Singh anusingh...@gmail.com wrote: I think, it's not right way. TextView android:id=@+id/widget39 android:layout_width=wrap_ content android:layout_height=wrap_content android:text=TextView android:layout_alignParentBottom=true android:layout_alignParentLeft=true Button android:id=@+id/widget38 android:layout_width=wrap_content android:layout_height=wrap_content android:text=Button android:layout_alignParentTop=true android:layout_alignParentRight=true /Button /TextView You have mention Button in a TextView. - Anurag Singh Hi. please find the link to attached file, i need to have this kinda layout. is it possible?? well perhaps it is, but im not getting it how to do it. i want to specify the whole layout in the xml, but it gives runtime error here's the link to the blue print of desired layout: http://lh6.ggpht.com/_o9EYB0b5APY/S8s-coQE-KI/CrA/KJUl5ANBi88... here's my main.xml- ?xml version=1.0 encoding=utf-8? LinearLayout xmlns:android=http://schemas.android.com/apk/res/ android android:orientation=vertical android:layout_width=fill_parent android:layout_height=fill_parent RelativeLayout android:id=@+id/widget28 android:layout_width=wrap_content android:layout_height=wrap_content android:layout_x=17px android:layout_y=10px Button android:id=@+id/widget40 android:layout_width=wrap_content android:layout_height=wrap_content android:text=Button android:layout_alignTop=@+id/widget39 android:layout_toRightOf=@+id/widget38 /Button TextView android:id=@+id/widget39 android:layout_width=wrap_content android:layout_height=wrap_content android:text=TextView android:layout_alignParentBottom=true android:layout_alignParentLeft=true Button android:id=@+id/widget38 android:layout_width=wrap_content android:layout_height=wrap_content android:text=Button android:layout_alignParentTop=true android:layout_alignParentRight=true /Button /TextView /RelativeLayout ListView android:id=@+id/tweetList android:layout_width=wrap_content android:layout_height=wrap_content / /LinearLayout is anything wrong?? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are
[android-developers] spinner question: how to detect the selection of an already selected item?
I have an activity with a ListView check list and a spinner that
controls the sort order of the items in that check list. One of the
sort options is to move the checked items to the beginning of the
list. I would like to allow users to check some items in the list,
select the 'sort by checks' option, check some more items in the list,
and select the 'sort by checks' option again. However, I don't see
how to detect that second selection of the spinner's 'sort by checks'
option.
I've tried using setOnItemSelectedListener, but it doesn't call the
onItemSelected handler unless a different item is selected. And I've
tried using setOnItemClickListener, but it seems that listener cannot
be used with a spinner according to following run-time exception from
logcat:
- - -
D/AndroidRuntime( 987): Shutting down VM
W/dalvikvm( 987): threadid=3: thread exiting with uncaught exception
(group=0x4000fe70)
E/AndroidRuntime( 987): Uncaught handler: thread main exiting due to
uncaught exception
E/AndroidRuntime( 987): java.lang.RuntimeException: Unable to start
activity ComponentInfo{com.test.spinner/com.test.spinner.check_list}:
java.lang.RuntimeException: setOnItemClickListener cannot be used with
a spinner.
E/AndroidRuntime( 987):at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
2268)
- - -
Any tips on how to detect the selection of an already selected item in
a spinner?
Thanks,
Greg
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[android-developers] Re: Audio Mixing
I found the solution to my problem: Service.startForeground. This call makes sure my background service will keeps its priority when its running in the background. The SDK has a nice example that works across all API levels: http://developer.android.com/intl/de/resources/samples/ApiDemos/src/com/example/android/apis/app/ForegroundService.html Jesper Hansen -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: A problem about -rpath-link
Thanks a lot. I think this problem maybe could not be solved. I just use relative path to do the link. 2010/4/16 andrej sarkic andrej.sar...@gmail.com You should read this first: http://developer.android.com/sdk/ndk/index.html On Apr 15, 9:45 pm, Ke Wu kerl@gmail.com wrote: Hi all, I got a new clue, in the rpath-link option, could be several paths, and use colon to separate these paths. So, if I want to use windows driver path, I must find out a way to transfer colon, But HOW COULD I ?? Any suggestion would be greatly appreciated! Thanks in advance GOD SAVE ME! T_T 2010/4/15 KerlW kerl@gmail.com I am learning Anroid development, trying to write native C program. I am using code sourcery g++ lite to compile and link my program, When I tried to link my program dynamically, I met a problem. I've pulled /system/lib from android emulator to my PC c:\androidlib when link , I need to pass this path to -L and -rpath-link option. -L c:\androidlib works. but -rpath-link c:\androidlib didn't work!! I've tried in many forms such as: -rpath-link c:/androidlib -rpath-link \c\androidlib -rpath-link \driver\c\androidlib None of above makes the linker know the correct path. How could I solve this problem?? Any suggestion would be greatly appreciated(aside using -static to avoid dynamic link). -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2bunsubscr...@googlegroups.com For more options, visit this group athttp:// groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] How to get wifi account and password in code?
How to get wifi account and password in code? Please tell me if you know ,thanks. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Android Appending Values Received From Server
Hi, I am trying to receive some data from a servlet on to android. It works fine for the first run but if in case I happen to use the same activity again, the previous data is getting appended to the new data. Could some one please tell me what is wrong. Why dont the variables get re initialized in the activity on the second usage of the same Thanks, Raqeeb -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Can i get this layout with List view??
Ohk,
Things went fine, and i was able to design a new layout like this-
?xml version=1.0 encoding=utf-8?
RelativeLayout
android:id=@+id/widget101
android:layout_width=fill_parent
android:layout_height=fill_parent
xmlns:android=http://schemas.android.com/apk/res/android;
RelativeLayout
android:id=@+id/widget110
android:layout_width=fill_parent
android:layout_height=wrap_content
android:layout_alignParentTop=true
android:layout_alignParentLeft=true
TextView
android:id=@+id/widget112
android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=TextView
android:layout_centerVertical=true
android:layout_centerHorizontal=true
/TextView
Button
android:id=@+id/widget111
android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=Button
android:layout_alignParentTop=true
android:layout_alignParentLeft=true
/Button
Button
android:id=@+id/widget113
android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=Button
android:layout_alignParentTop=true
android:layout_alignParentRight=true
/Button
/RelativeLayout
ListView
android:id=@+id/widget114
android:layout_width=fill_parent
android:layout_height=wrap_content
android:layout_below=@+id/tweetList
android:layout_alignParentLeft=true
/ListView
/RelativeLayout
Things stay fine until i assign the adapter to the list i have
created-
public class MainActivity extends Activity {
/** Called when the activity is first created. */
String[] data={1,2,3};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ListView tweetList = (ListView) findViewById(R.id.tweetList);
tweetList.setAdapter(new
ArrayAdapterString(this,R.id.tweetList,data));
}
}
as soon as i add the last line, problems start.
whats wrong?
On Apr 19, 6:24 am, SheikhAman shekh.a...@gmail.com wrote:
ohh, all of the tags didnt have '' with them.
I have already added them but they weren't copied dont know why, so
thats not a problem.
On Apr 19, 6:12 am, SheikhAman shekh.a...@gmail.com wrote:
Oops!
Sorry..
here is the correct one-
?xml version=1.0 encoding=utf-8?
LinearLayout xmlns:android=http://schemas.android.com/apk/res/
android
android:orientation=vertical
android:layout_width=fill_parent
android:layout_height=fill_parent
RelativeLayout
android:id=@+id/widget28
android:layout_width=wrap_content
android:layout_height=wrap_content
android:layout_x=17px
android:layout_y=10px
Button
android:id=@+id/widget40
android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=Button
android:layout_alignTop=@+id/widget39
android:layout_toRightOf=@+id/widget38
/Button
TextView
android:id=@+id/widget39
android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=TextView
android:layout_alignParentBottom=true
android:layout_alignParentLeft=true
/TextView
Button
android:id=@+id/widget38
android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=Button
android:layout_alignParentTop=true
android:layout_alignParentRight=true
/Button
/RelativeLayout
ListView
android:id=@+id/tweetList
android:layout_width=wrap_content
android:layout_height=wrap_content
/
/LinearLayout
Please tell.
On Apr 18, 11:11 pm, Anurag Singh anusingh...@gmail.com wrote:
I think, it's not right way.
TextView
android:id=@+id/widget39
android:layout_width=wrap_
content
android:layout_height=wrap_content
android:text=TextView
android:layout_alignParentBottom=true
android:layout_alignParentLeft=true
Button
android:id=@+id/widget38
android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=Button
android:layout_alignParentTop=true
android:layout_alignParentRight=true
/Button
/TextView
You have mention Button in a TextView.
- Anurag Singh
Hi. please find the link to attached file, i need to have this kinda
layout.
is it possible??
well perhaps it is, but im not getting it how to do it.
i want to specify the whole layout in the xml, but it gives runtime
error
here's the link to the blue print of desired layout:
http://lh6.ggpht.com/_o9EYB0b5APY/S8s-coQE-KI/CrA/KJUl5ANBi88...
here's my main.xml-
?xml version=1.0 encoding=utf-8?
LinearLayout xmlns:android=http://schemas.android.com/apk/res/
android
android:orientation=vertical
android:layout_width=fill_parent
android:layout_height=fill_parent
RelativeLayout
android:id=@+id/widget28
android:layout_width=wrap_content
android:layout_height=wrap_content
android:layout_x=17px
android:layout_y=10px
Button
android:id=@+id/widget40
android:layout_width=wrap_content
android:layout_height=wrap_content
[android-developers] Re: requestLocationUpdates issue
Hi Bob, Thanks a lot for this. This helped me to understand a lot of things. I found out a good way for starting/stopping a service here: http://www.brighthub.com/mobile/google-android/articles/34861.aspx What do you think of this one ? Cheers, Tejas On Apr 18, 7:03 pm, Bob Kerns r...@acm.org wrote: OK, I understand your thinking a bit better, so hopefully I can explain a bit better. onDestroy() is only called when your application is idle. The system will NEVER directly call a lifecycle method except when the main thread is idle If you are running some long-lived function from, say, onStart(), or a handler in the main thread. All of these are handled one at a time by the main thread's Looper. So there will be no abrupt termination of your function when onDestroy() is called. That only happens if it kills off the process. Which is a lot more likely to happen if you block the main thread -- after a while, the user will get a dialog offering to kill or wait for the busy process! Java used to support interrupting and abruptly terminating threads. However, there is absolutely NO way to make this a safe operation. Android does kill off processes, which can leave things outside the process in an inconsistent state, but that's not as bad as having your application still running, but in an inconsistent state internally! So abruptly force-quitting a method is not part of the model of any Java system. (But you can still check, and throw an exception to get out of a loop -- that will properly invoke all finally() clauses on the way out, etc.). It's hard for me to tell you the proper way to stop your service, because it depends on just what you're doing. You have part of the idea, by checking for a termination flag in your loop. You can set that in your onDestroy() method -- akin to what you're trying to do with your call to the undocumented Looper.quit() method. But what you want to do is to set your CARuntimes.MainServiceRunFlag instead. (Except I'd make that an instance member of your Service class, rather than a static of some other class. Better modularity, though you can make it work this way). It looks to me like what you're really trying to do, is what the system already provides for you better -- IntentService. I really don't know what their intent was, calling it this -- I think I'd call it ThreadedService, since the relevant point is that it runs your code in a separate thread. Or maybe HandlerThreadService, since it uses a handler to serialize the requests for work. You still have to be careful about things that queue up things to the current thread's looper -- like Toast, for example. Any deferred processing you want to queue up to a handler you set up in the IntentService's onCreate method (i.e. on the main thread). Anyway, the purpose of HandlerThread's and Handler's is not clean shutdown, but rather the queuing of messages via a Looper and associated MessageQueue. If you're only handling one message, ever, then creating your own thread would make sense. An AsyncTask would be a good choice if you're only running for a short time (but too long for the main thread). But if this is something that runs for an extended period of time, it would potentially block other uses of AsyncTask, so your own thread is a better choice. So anyway, to summarize -- Handler's, HandlerThread's, and IntentService give you a way to do one thing at a time in another thread. AsyncTasks give you a way to do a small number of small things in parallel (in some versions of the system, one thing at a time). Long-lived things need their own threads -- HandlerThread and IntentService can provide this. You stop a thread by testing for some condition in the loop in the thread. If the thread needs to wait, use wait(), and use notifyAll() to wake it up after you set the flag. Be sure to use the synchronized keyword to coordinate in this case! And if you loop within a handler, you're basically occupying that thread while you're looping. So be careful not to queue up any additional work to that thread's looper. (And often it needs to go to the main thread anyway -- for example, all GUI operations need to be run there). Sorry I can't make all that simple! Threading is never really simple. But there are simple patterns, and if you carefully stay within those simple patterns, you can avoid most of the complexity. Finally, about getApplicationContext() -- unfortunately, in the released versions of the documentation, there are some bad examples around this. I understand they've been fixed for the next release of the SDK. But if you're in an Activity or a Service, you just supply that activity or service, via the this pseudo-variable. However, in your case, your use isn't directly in the service, but in your nested ServiceHandler class, so this will refer to that instance instead. But you can still refer to the outer instance's this, by writing
[android-developers] GetLocation of the phone
Hi,
I am trying to retrieve the GPS location of the phone. I believe I
cannot create an object of the class which stores the location in a
variable. So that once the class gets instantiated I use a get method
and retrieve the content in the variable.
So I am trying to do this
locationListener = new MyLocationListener();
lm.requestLocationUpdates(
LocationManager.GPS_PROVIDER,0,0,locationListener);
if(!information.equals(null)){
Bundle bundle = new Bundle();
bundle.putString(hello, information);
Intent intent = new Intent(LocationActivity.this,
MainActivity.class);
intent.putExtras(bundle);
startActivity(intent);
}
and in the locationlistener class
public void onLocationChanged(Location loc) {
if (loc != null) {
double lat=loc.getLatitude();
double lon=loc.getLongitude();
information = +lat +lon;
Toast.makeText(getBaseContext(),
Location Changed:+information,
Toast.LENGTH_LONG).show();
}
else
information=bad luck;
}
The mainactivity then displays that...but its not happening...could
some one please help me how to get the values of this.
Thanks...Raqeeb
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[android-developers] VIBRATE permission not showing on device or emulator
Hi, Been wrestling with uses-permission in AndroidManifest.xml for about 1/2 a day, so I may be blinded by my frustration I've been cleaning up my app (removing debug code, experimental stuff to blackbox things I didn't understand, etc.). As part of this, I removed some uses-permission elements from my manifest. After doing so, I rebuilt, installed on emulator and a mytouch 3G, ran settings, application manager, and checked the permission list. After chasing my tail for about 5 hours (rant), I stumbled across issue 4101: http://code.google.com/p/android/issues/detail?id=4101can=1q=uses-permissioncolspec=ID%20Type%20Status%20Owner%20Summary%20Stars That explained part of my problem (I was getting permission in the installed application that were not set in my AndroidManifest.xml). But after figuring that out, I'm still missing android.permission.VIBRATE. The app runs and does use the vibrator on the mytouch. I checked my package using aapt dump xmltree..., and it is set in the apk version of the manifest. I grep'ed the package code mentioned in 4101 and didn't find vibrate anywhere. Does anybody have any ideas why it isn't showing up in settings- applications-Manage applications -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Opengl
Let me know how to set up a background image in opengl -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Need Help on Quick Search
Any help on this?.. Thanks, Amit On Tue, Apr 13, 2010 at 12:04 PM, Amit A android.a...@gmail.com wrote: Hi, I wanted to have one more Search with different search UI on the Home Screen(addition to Quick search box) which can search through restricted applications and provide user additonal functionalities. Does this require one more Search Service in the framework layer or this can be done within the existing Search manager itself? - As i see the UI and logic are tightly coupled. Does this Pass the compatibilty test?. Any help on this is apprecitated. Thanks, Amit -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] GetLocation of the phone
Have you set uses permission in manifiest file.
uses-permission
android:name=android.permission.ACCESS_FINE_LOCATION /
- Anurag Singh
Hi,
I am trying to retrieve the GPS location of the phone. I believe I
cannot create an object of the class which stores the location in a
variable. So that once the class gets instantiated I use a get method
and retrieve the content in the variable.
So I am trying to do this
locationListener = new MyLocationListener();
lm.requestLocationUpdates(
LocationManager.GPS_PROVIDER,0,0,locationListener);
if(!information.equals(null)){
Bundle bundle = new Bundle();
bundle.putString(hello, information);
Intent intent = new Intent(LocationActivity.this,
MainActivity.class);
intent.putExtras(bundle);
startActivity(intent);
}
and in the locationlistener class
public void onLocationChanged(Location loc) {
if (loc != null) {
double lat=loc.getLatitude();
double lon=loc.getLongitude();
information = +lat +lon;
Toast.makeText(getBaseContext(),
Location Changed:+information,
Toast.LENGTH_LONG).show();
}
else
information=bad luck;
}
The mainactivity then displays that...but its not happening...could
some one please help me how to get the values of this.
Thanks...Raqeeb
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[android-developers] Re: GetLocation of the phone
yes.. its getting the locations all right..but i am unable to save the
location somwhere so that i can use it later. thats the whole
issue
I just thought of something...
if I start a service that does the onLocationChanged stuffit would
get the gps locations and store it (somewhere in the system)
and later if i just start an acitivity that would do
getLastKnowLocation() , shouldn't that fetch the location for further
use.
Come some one advise please
On Apr 19, 12:22 am, Anurag Singh anusingh...@gmail.com wrote:
Have you set uses permission in manifiest file.
uses-permission
android:name=android.permission.ACCESS_FINE_LOCATION /
- Anurag Singh
Hi,
I am trying to retrieve the GPS location of the phone. I believe I
cannot create an object of the class which stores the location in a
variable. So that once the class gets instantiated I use a get method
and retrieve the content in the variable.
So I am trying to do this
locationListener = new MyLocationListener();
lm.requestLocationUpdates(
LocationManager.GPS_PROVIDER,0,0,locationListener);
if(!information.equals(null)){
Bundle bundle = new Bundle();
bundle.putString(hello, information);
Intent intent = new Intent(LocationActivity.this,
MainActivity.class);
intent.putExtras(bundle);
startActivity(intent);
}
and in the locationlistener class
public void onLocationChanged(Location loc) {
if (loc != null) {
double lat=loc.getLatitude();
double lon=loc.getLongitude();
information = +lat +lon;
Toast.makeText(getBaseContext(),
Location Changed:+information,
Toast.LENGTH_LONG).show();
}
else
information=bad luck;
}
The mainactivity then displays that...but its not happening...could
some one please help me how to get the values of this.
Thanks...Raqeeb
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[android-developers] Re: GetLocation of the phone
i have been getting the locations fine...thats not issue..so please be
assured that i have set the manifest file right...
i just need to send the lcoations to another activity and i am not
able to do that
i just thought of this...start a service that would collect gps data
at regular intervals of time...
and then just start my activity that would use getLastKnownLocation()
and get the locations..
Can some one please advise if i am going on the right directio n
On Apr 19, 12:22 am, Anurag Singh anusingh...@gmail.com wrote:
Have you set uses permission in manifiest file.
uses-permission
android:name=android.permission.ACCESS_FINE_LOCATION /
- Anurag Singh
Hi,
I am trying to retrieve the GPS location of the phone. I believe I
cannot create an object of the class which stores the location in a
variable. So that once the class gets instantiated I use a get method
and retrieve the content in the variable.
So I am trying to do this
locationListener = new MyLocationListener();
lm.requestLocationUpdates(
LocationManager.GPS_PROVIDER,0,0,locationListener);
if(!information.equals(null)){
Bundle bundle = new Bundle();
bundle.putString(hello, information);
Intent intent = new Intent(LocationActivity.this,
MainActivity.class);
intent.putExtras(bundle);
startActivity(intent);
}
and in the locationlistener class
public void onLocationChanged(Location loc) {
if (loc != null) {
double lat=loc.getLatitude();
double lon=loc.getLongitude();
information = +lat +lon;
Toast.makeText(getBaseContext(),
Location Changed:+information,
Toast.LENGTH_LONG).show();
}
else
information=bad luck;
}
The mainactivity then displays that...but its not happening...could
some one please help me how to get the values of this.
Thanks...Raqeeb
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[android-developers] Re: Map app with GPS is not working in Nexus One
Hi All, Thanks for ur replyBut my doubt is why I am getting exception in nexus one onlyI tried the same code with G1.It is working fine in that.Ok...anyway I will try with requestLocationUpdates Regards, SREEHARI. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Android Appending Values Received From Server
What exactly do you mean by second usage? Just pressing the home key and then tapping your program icon won't create a new activity instance, unless the old one has been deleted. You can't depend on it being deleted, in fact, you'd prefer it not be. Study the diagram in the Activity class documentation (a screen or two down): http://developer.android.com/intl/de/reference/android/app/Activity.html Note that there are paths that take you back into the activity. Depending on what exactly what data is you're getting from the server, you may want to reinitialize in onResume() or onStart(). My guess would be onStart() -- I think you probably don't want to re-fetch data just because a dialog popped up, then returned control to your Activity. Likewise, you may want to de-initialize the data (for example, null out the variable containing it) in the onStop() method, which will allow the memory to be reclaimed sooner. On Apr 18, 7:24 pm, raqz abdulraqee...@gmail.com wrote: Hi, I am trying to receive some data from a servlet on to android. It works fine for the first run but if in case I happen to use the same activity again, the previous data is getting appended to the new data. Could some one please tell me what is wrong. Why dont the variables get re initialized in the activity on the second usage of the same Thanks, Raqeeb -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] ArrayIndexOutOfBoundException while reading the file
hello everybody, I am developing one application in that I am reading
one file in parts (I am reading 102400 bytes at a time ) and sending
it to server. size of file is more than 5mb. I had write following
method to read the file
public void readFile()
{
try
{
int size = (int)myFile.length();
noOfChunks = (size/102400);
noOfChunks = noOfChunks+1;
System.out.println (size of file is +size);
System.out.println (size is+noOfChunks);
FileInputStream fstream = new FileInputStream(myFile);
DataInputStream in = new DataInputStream(fstream);
byte[] byteArray = new byte[102400];
for (int i=1;i!=noOfChunks;i++)
{
xyz = in.skip(start);
System.out.println (skipped :+start);
in.readFully(byteArray, start, end);//[b]This is
line no 133 here exception occurs[/b]
str = new String(byteArray);
sendData(0213456789_A~addressbook.txt~10~+str);
start = end;
end = end+102398;
}
}
catch (IOException ioe)
{
ioe.printStackTrace();
}
}
But when this method throws IndexOutOfboundException at line 133.
Actually I thought because of in.readFully(byteArray, start, end);
It reads from start to end and store it to byteArray, but it is not
working like that.
Anybody knows what I am doing wrong?
Thanks
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[android-developers] Re: Moving two views together
Hey, if you could please give me more details for the same. I'm still a starter in android development. On Apr 13, 6:34 pm, social hub shubem...@gmail.com wrote: hack into onmove onscroll onfling methods and pass them to other view On Tue, Apr 13, 2010 at 6:25 AM, Sonic.. abhishek.bansal1...@gmail.comwrote: Hello, I currently have one Scrollview which contains a table layout and one list in my activity. Now my problem is that I wanted to move both of them(Scrollview and list) together and with proper synchronization... So if scrollview is being scrolled then listview should also scroll with the same distance, and vice versa... Thanks in advance.. Abhishek -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en To unsubscribe, reply using remove me as the subject. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Is the bad MotionEvent/Touch slowdown stuff actually fixed on first-gen 2.1 updates?
Excellent work, Mario. I think it's quite clear that the input
processing code in Android needs help. Eating 20-30% of a Cortex A8
is a pretty big deal.
On Apr 18, 4:21 pm, Mario Zechner badlogicga...@gmail.com wrote:
For fun i extended the example i posted earlier. It now feature cpu
usage output derrived from /proc/stat which should be enough to given
an indication of the slow down occuring due to touch events.
The setup:
- A GLSurfaceView
- An OnTouchListener that does nothing but return true
- A simple renderer thread which is throttled via a Thread.sleep(200)
to 5 frames per second which outputs the frames per second as well as
the cpu usage
Observation on Milestone with 2.0.1:
- load without touching the screen - 4%-12%
- load with touching the screen - 24%-44%
due to the way i measure the cpu usage it of course fluctuates quiet a
bit, the overall tendency can be easily derrived though.
You can find the apk athttp://www.file-pasta.com/file/1/touchflood.apk,
the Eclipse project with all the source can be found
athttp://www.file-pasta.com/file/0/touchflood.zip.
On 18 Apr., 22:18, Robert Green rbgrn@gmail.com wrote:
The fundamental issue is that there are too many instructions per
event being executed. There is no way around it other than optimizing
the event handling code in KeyInputQueue. No amount of waiting or
sleeping will fix that because those events must run through that code
and that code appears to be very slow. It surprises me because it's
truly performance critical code and this issue has been known since
1.1/1.5 and it still doesn't appear to be fixed in master. I'm
looking at it now and the author(s) didn't even follow Android's best
optimization practices. Simple things like declaring virtuals with
local variables aren't done.
For a moment today I was considering taking the input stack (EventHub,
KeyInputQueue and InputDevice) and hacking it into my own input stack
which reads off the event devices much more efficiently but I can't
find any way to stop the system stack from running and consuming CPU,
so that hack is out (and probably good because I really didn't want to
go there - waste of time and probably wouldn't work right anyway).
In my activity:
public boolean onTouchEvent(MotionEvent e) {
return false;
}
And system_server still consumes about 36% of the CPU while moving my
finger around. That proves there is nothing a developer can do to
work around this. I think I'll take this issue to the platform group
now and try to file more specific bugs.
On Apr 18, 10:38 am, Ralf Schneider li...@gestaltgeber.com wrote:
I have already talked a lot about the touch slow down in this forum.
There is another observation I would like to add, may be this can help to
track the problem down.
One of my projects is an Argumented Reality Game.
Of course this kind of App eats energy (CPU cycles) like crazy:
In my app I process:
The camare, OpenGL graphics, Pseudo-3D-Sound mixing (8 simultaneous
samples
+ ogg-music), 2 constant sensor imputs (acceleration, magnetic) and
additional input from trackball, hardware keys and the touch screen.
The largest slow down occurs with the touch-events.
But the next big slow down occurs with the accleration and magnetic
events!
I gained up to 4 FPS on a N1 by switching from SENSOR_DELAY_FASTEST to
SENSOR_DELAY_GAME.
= So I just wonder: May be the slow down is in no way specific to touch
events! Instead the whole input-queue-event handling is just horribly
slow.
As everyonw has observed: Touching the screen will trigger (flood) lots of
events - This is similar as enabling input from other sensors - which can
slow down the app in a compareable way, too!
The main differences is only: Touching the screen will still trigger more
event than using a sesnor in *SENSOR_DELAY_FASTEST*. So the slow down
appears as less drastically...
After working a while with Android, I must say:
The design and architecture of the Java-API seems to be nice and well done
most of the time.
But the execution and implementation of the software stack as a whole
seems
to be just slow, slow, slow, slow, All this doesn't matter if you
have
lots of servers with many cores (ENTERPRISE!) but for an
embedded-soft-realtime-device I expect more!
IMHO the OS on an embedded device with a 1 GHZ CPU should not use more
than
1% of the CPU to process around thousand events per seconds - and even
this
i would consider slow.
Anyway, this time I resist to go into a deeper rant.
Kind Regards,
Ralf
2010/4/18 Robert Green rbgrn@gmail.com
I've tried sleep() and have switched to wait(1000), notify() / yield()
as outlined by some other devs. I have no empirical evidence that one
works any better than the other. Both consume a range between 25-36%
of the CPU
[android-developers] Re: Moving two views together
I'll reframe my question. I'm not using a scrollview anymore. I have two lists being displayed in my activity. I heard that using a listview within a scrollview causes issues. So I need a way where in I can scroll both the lists simultaneously. Does that mean I need to override some functions of a listview. I tried to do something with the OnScrollListener but couldn't find much help. Can I use the OnScrollListener and using the view given I can scroll both the lists. On Apr 19, 10:50 am, Sonic.. abhishek.bansal1...@gmail.com wrote: Hey, if you could please give me more details for the same. I'm still a starter in android development. On Apr 13, 6:34 pm, social hub shubem...@gmail.com wrote: hack into onmove onscroll onfling methods and pass them to other view On Tue, Apr 13, 2010 at 6:25 AM, Sonic.. abhishek.bansal1...@gmail.comwrote: Hello, I currently have one Scrollview which contains a table layout and one list in my activity. Now my problem is that I wanted to move both of them(Scrollview and list) together and with proper synchronization... So if scrollview is being scrolled then listview should also scroll with the same distance, and vice versa... Thanks in advance.. Abhishek -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en To unsubscribe, reply using remove me as the subject. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
