[android-developers] Re: Development Patterns
Please read little more from http://developer.android.com Once you'll start writing Android code, these queries will go off On May 11, 2:08 pm, Cory Kaufman allspirits...@gmail.com wrote: Hi, Has anyone started cataloging common design patterns that arise when developing Android apps? For example: It's worked out well for me to create a base class that extends Activity that all of my other activities extend, so I have a central place to put common functionality. When should strings be listed in values/strings.xml and when should they be hard coded? What kind of conventions should be used when giving views ids? Should there not be views in different layouts with the same name? Etc. Cory -- 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] holder.text.setText(Listdisplay.name[position]);
Hi Android developer groups!
Use the Typeface with holder means properly get output, i mean here *
holder.text.setTypeface(tf);* ,
but how can set the Typeface here * holder.text
.setText(Listdisplay.name[position]);*
i mean how can use setTypeface with holder and setText? See below code
public View getView(int position, View convertView, ViewGroup parent)
{
View vi=convertView;
ViewHolder holder;
Typeface tf=Typeface.createFromAsset(context.getAssets(),
font.ttf);
if(convertView==null)
{
View vi;
TextView text;
vi = inflater.inflate(R.layout.item, null);
holder.text=(TextView)vi.findViewById(R.id.text);
* holder.text.setTypeface(tf);*
vi.setTag(holder);
}
else
holder=(ViewHolder)vi.getTag();
* holder.text.setText(Listdisplay.name[position]);*
return vi;
}
Thanks,
suba
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[android-developers] Re: NFC
The closest option currently available is NDEF push. http://developer.android.com/guide/topics/nfc/index.html#p2p Tag/card emulation is not included in Android yet. On 10 Maj, 06:24, abe chivtim...@gmail.com wrote: Hi, I'm a new one in android development, I wonder if I want to use Nexus S 2.3.3 as tag and scan it with NFC-Reader, what can I do? I try to search sample code but I couldn't get it yet, any one know please help ! thank in advance. -- 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: disable scroll when activity loads
hi, is there anyone ? -- 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: disable scroll when activity loads
*My friend, I found a website to make big money online. There is address: http://BigExtraCash.com/_6a6b7d72.htm * -- 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] NFC
*My friend, I found a website to make big money online. There is address: http://BigExtraCash.com/_6a6b7d72.htm* -- 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] R: Re: menu item disabled, but clickable
I haven't found anything like 'setClickable'. Where did you get it ? -- 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 and JMX
As far as i know, you can't do that. JMX (javax.management.**) is not supported by Android (not in android.jar) or by any third part library for Android. -- 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: (2nd try) Segmentation fault when loading a certain class from an OSGi framework under Android 2.2 2.3
i can't help you with your particular problem, but I'm wondering why you write your Android app under an OSGi framework. That looks like overkill to me. Couldn't you use just plain Java? -- 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: Programmatically add contact and start Dialer with some delay
Any ideas? On 11 Тра, 17:23, viktor victor.scherb...@gmail.com wrote: Hi, My app create new contact, inserts it into DB, and with little delay(300 - 500 мс) Dialer will start with number of new contact. At first try Dialer shows only a number on the Screen, after second try it shows Full name. This action repeats every time when phone was rebooted. Somebody has 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
Re: [android-developers] On CRC32, LVL and tamper-proof app
On Wed, May 11, 2011 at 8:47 PM, Nikolay Elenkov nikolay.elen...@gmail.comwrote: Does this work at all? The signature is different from the public key, so it shouldn't. Even if it did, if an attacker can repackage your application, they can replace the public key in the APK with their own. You have to either do this on a server, or take measures to make the public key in the apk really hard to get to. Once they are to the point of modifying your application in order to pirate it, it is just a matter of how difficult you are going to make it for them to do this. I was offering the public cert as another variable you can use for obfuscation and hindrance. Certainly though just having your public key as a raw string in the code makes it fairly easy to find -- you probably want to do something to obfuscate it. You could also do things like using bytes from the public cert to modify data being processed by the app in a way that gets a correct result for something. Again though we are at the point where a pirate needs to modify the app to remove the anti-piracy code from it. If we assume that the protection is for client-side code (not relying on a server side component), this is all just a game of deciding how much time it is worth you spending on making it hard for others to pirate your app vs. how much you think that will actually reduce piracy. And a recent blog post I read that gives some good perspective to have on this: http://jeff-vogel.blogspot.com/2011/05/final-answer-for-what-to-do-to-prevent.html -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- 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: Keep a service running continuously
Third party apps can not use android:persistent. Service.startForeground() is the formal way to say you can not be killed. This means the user must be aware that you are running (currently by posting a notification) so they can manage what is going on. For the vast majority of NFC uses though I wouldn't think this is necessary -- if your service is going to run for a minute or so there should be no need to do this, except that it would force the system to keep your process around when getting very low on memory even if it normally wouldn't want to. On Wed, May 11, 2011 at 8:23 PM, perumal316 perumal...@gmail.com wrote: I am communicating with a NFC tag and sending commands to the tag. But the service gets cutoff and I could not complete the sending of commands. Increasing the timeout doesn't help too. That's why need looking for a way to continuously run the NFC service. On May 12, 11:12 am, dnkoutso dnkou...@gmail.com wrote: startForeground() basically helps you achieve keeping your service running as long as possible. However, the cost of doing this is that you must provide an ongoing notification so the user is aware that something is constantly running. What is it you are trying to achieve and you want the NFC service to run continuously? -- 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 -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- 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] Aw: Re: (2nd try) Segmentation fault when loading a certain class from an OSGi framework under Android 2.2 2.3
Hello, well, in a way you are correct - it may looks as if this is an overkill. The background is that we are working as part of an research project, in which OSGi acts as the base technology for all the software developments. In this context, one of our goals is to show the flexibility of the developed OSGi bundles; i.e., that identical bundles can be re-used independent from the underlying system (here of course beside from converting them into Dalvik) and in various contexts - you just take the bundles, deploy them into the appropriate OSGi framework, start the application which uses the services provided by the bundles, and it (should...) work. So using Java without OSGi isn't an option... -- 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: Develop apps on-the-fly?
I would recommend trying the appinventor. It is the closest you can get to app. development without installing an SDK. You can develop using a browser. On May 12, 12:45 pm, Peter Webb r.peter.w...@gmail.com wrote: You can't develop Android applications entirely on Android phones. The SDK runs on Windows, Linux and Mac but not the Android o/s. Don't hold your breath. I can't imagine that running Eclipse on a phone is going to work very well, even if it was feasible. OTOH, if you own a PC, you just run the SDK on that. Problem solved. On May 10, 8:21 am, keksinen keskinen.o...@gmail.com wrote: Hey there, I'm wondering whether I should move to developing android apps. As I know next to nothing on android, I'd like to know if there is a way to do the developing on an actual android device, or whether I'd be necessary to get a SDK on an external machine as it seems to be done. So again: is it possible or in any case convenient to do app developing on android itself? Cheers -- 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: On CRC32, LVL and tamper-proof app
Does this work at all? The signature is different from the public key, so it shouldn't. Yes it works, I wrote MY_LONG_PUBLIC_KEY, but I meant signature. thank you for replying Dianne, I knew it's a matter of time. Since the app costs less than 3$, I hope the three implemented level of anti- piracy will be enough..I agree I should obfuscate the cert, too, as I did with the LICENSED constant (0x0) I agree with the linked post, too. I really prefer to spend my time making my app nicer, more usable and efficient rather than burdening with key obfuscation and complex hashings. But the challenge of protecting something I really feel mine is too great to leave it easy to pirate. I would never have expected my app got cracked, for the simple reason i didn't think it was interesting. Now that I know it is, I like to make things more difficult to understand from a reverse engineered point of view. I'm learning a lot from this issue. Alessandro On 12 Mag, 09:46, Dianne Hackborn hack...@android.com wrote: On Wed, May 11, 2011 at 8:47 PM, Nikolay Elenkov nikolay.elen...@gmail.comwrote: Does this work at all? The signature is different from the public key, so it shouldn't. Even if it did, if an attacker can repackage your application, they can replace the public key in the APK with their own. You have to either do this on a server, or take measures to make the public key in the apk really hard to get to. Once they are to the point of modifying your application in order to pirate it, it is just a matter of how difficult you are going to make it for them to do this. I was offering the public cert as another variable you can use for obfuscation and hindrance. Certainly though just having your public key as a raw string in the code makes it fairly easy to find -- you probably want to do something to obfuscate it. You could also do things like using bytes from the public cert to modify data being processed by the app in a way that gets a correct result for something. Again though we are at the point where a pirate needs to modify the app to remove the anti-piracy code from it. If we assume that the protection is for client-side code (not relying on a server side component), this is all just a game of deciding how much time it is worth you spending on making it hard for others to pirate your app vs. how much you think that will actually reduce piracy. And a recent blog post I read that gives some good perspective to have on this: http://jeff-vogel.blogspot.com/2011/05/final-answer-for-what-to-do-to... -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- 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 Start up
Please check the console log. On 5月9日, 下午6时19分, LiTTle littlep...@gmail.com wrote: Hi everyone, I am new in android development. I am coming from J2ME. I am trying to build my first Android application. The application is Hello World as it is described at Google's guidelines. I use Eclipse Editor to create the application and I followed the steps as Pro Android 2 said. The preblems are the following: 1). Android emulator starts with the delay of 7 minutes!!! I use my netbook to create the app. Is it normal this delay? 2). Apart from this delay, after the emulator starts successfully my application is never executed!!! PS: The code sample I use is the example with the TextView (http:// developer.android.com/resources/tutorials/hello-world.html) -- 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 Start up
Did you declared your activity in the manifest file? On 9 Тра, 13:19, LiTTle littlep...@gmail.com wrote: Hi everyone, I am new in android development. I am coming from J2ME. I am trying to build my first Android application. The application is Hello World as it is described at Google's guidelines. I use Eclipse Editor to create the application and I followed the steps as Pro Android 2 said. The preblems are the following: 1). Android emulator starts with the delay of 7 minutes!!! I use my netbook to create the app. Is it normal this delay? 2). Apart from this delay, after the emulator starts successfully my application is never executed!!! PS: The code sample I use is the example with the TextView (http:// developer.android.com/resources/tutorials/hello-world.html) -- 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] ndk5 exception crash with third-party library
On 11 May 2011 09:35, wasabee18 wasabe...@gmail.com wrote: Hi everyone, that's my first post, please be nice :) I beliee your problem shall be discussed on NDK list, not here (SDK). Regards, Marcin Orlowski *Tray Agenda http://bit.ly/trayagenda* - keep you daily schedule handy... *Date In Tray* http://bit.ly/dateintraypro - current date at glance... WebnetMobile on *Facebook http://webnetmobile.com/fb/* and *Twitterhttp://webnetmobile.com/twitter/ * -- 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] Documentation
On 10 May 2011 19:34, Jorge Luis jorgelferr...@gmail.com wrote: Does anyone have any starting documentation for dummies like me that are used to structured language? Get used to OO languages (namely Java) first. Tons of books/tutorial on the subject. Regards, Marcin Orlowski *Tray Agenda http://bit.ly/trayagenda* - keep you daily schedule handy... *Date In Tray* http://bit.ly/dateintraypro - current date at glance... WebnetMobile on *Facebook http://webnetmobile.com/fb/* and *Twitterhttp://webnetmobile.com/twitter/ * -- 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: R: Re: menu item disabled, but clickable
Sorry, I was probably thinking of views. On May 12, 3:22 pm, Zanarotti Michele zanarotti.mich...@gmail.com wrote: I haven't found anything like 'setClickable'. Where did you get it ? -- 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] Setting the browser's user agent
On 10 May 2011 20:57, ZathrasOne ritter_br...@yahoo.com wrote: Is there an easy way to temporarily change the user agent of the browser (without modifying and recompiling the code)? You mean existing Browser app? Then no. Check other browsers but while I saw some allowing user agent change it was mostly Mobile vs Desktop predefined values. No custom strings. Regards, Marcin Orlowski *Tray Agenda http://bit.ly/trayagenda* - keep you daily schedule handy... *Date In Tray* http://bit.ly/dateintraypro - current date at glance... WebnetMobile on *Facebook http://webnetmobile.com/fb/* and *Twitterhttp://webnetmobile.com/twitter/ * -- 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] Debugging errors in Eclipse
Nothing. By default, Eclipse is not set up with Android sources for debugging. It's usually not necessary - just click Resume a few times, so the process of your application crashing is complete, and check the logcat for the error message. In other words, your application appears to be crashing before it gets to the breakpoints, and you should solve those crashes first. -- Kostya 2011/5/12 cmt chrismt...@gmail.com I have a simple app that I'm trying to debug in Eclipse. I debug the app and have inserted some breakpoints. As I step into the breakpoints, I get errors, but the errors always seem meaningless to me saying stuff like this: Source not found The JAR file C:\android-sdk_r07\android-sdk-windows\platforms \android-11\android.jar has no source attachment. Any ideas of what I am doing wrong? 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 -- 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] Aw: Re: (2nd try) Segmentation fault when loading a certain class from an OSGi framework under Android 2.2 2.3
2011/5/12 Jan Krueger n...@chat-about.de Hello, well, in a way you are correct - it may looks as if this is an overkill. The background is that we are working as part of an research project, in which OSGi acts as the base technology for all the software developments. In this context, one of our goals is to show the flexibility of the developed OSGi bundles; i.e., that identical bundles can be re-used independent from the underlying system (here of course beside from converting them into Dalvik) and in various contexts Well, so far you've only shown that it's exactly opposite :) See this line from your log: 05-09 13:20:20.079: WARN/dalvikvm(13668): VFY: unable to find class referenced in signature (Ljavax/security/auth/Subject;) Android docs list javax.security.auth.Subject in the reference: http://developer.android.com/reference/javax/security/auth/Subject.html But I don't know what referenced in signature means. Perhaps that's a key to solving this problem? -- Kostya - you just take the bundles, deploy them into the appropriate OSGi framework, start the application which uses the services provided by the bundles, and it (should...) work. So using Java without OSGi isn't an option... -- 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] Rotate Image on bases of Velovity + GestureListener
Hello, I m rotating Image in onFling(MotionEvent e1, MotionEvent e2, final float velocityX, final float velocityY) method using RotateAnimation.Here I am using an fix angle to rotate image , pls suggest me how can I rotate angle based on velocity pls. Please suggest me how can handle it . -- 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: bind service in another aplication
Oh thanks, you saved me after all. I didn't know what for is intent- filter, but now i fully understand it. thanks once more :)) On 25. Apr, 21:41 h., Mark Murphy mmur...@commonsware.com wrote: Your service needs to have an intent-filter, and your Intent needs to match that filter. For example: service android:name=.BshService intent-filter action android:name=com.commonsware.android.advservice.IScript / /intent-filter /service new Intent(com.commonsware.android.advservice.IScript) would match that from a bindService() standpoint. On Sat, Apr 23, 2011 at 8:55 AM, ivanharmadyivan.harm...@gmail.com wrote: Hi, I'm trying to make bound service. Acording to tutorials at developer.android.com it is appropriate for me to implement bound service using messenger // there is written i should use it if i want to allow clients from different applications to access my service for IPC but i don't need to handle multithreading. if i want to bind service in the same application, there is no problem. BUT, my problem is to bind service which is in another application(/project) than my activity which i want to bind to it. in the activity which i want bind to service i call: bindService(new Intent(this, -- !!! -- ), myServiceConnection, Context.BIND_AUTO_CREATE); - BUT i don't know how to write path to the service.class which i have in another application(/project) how can i handle it? can somebody help me pls? i would be very thankfull. I spend too much time to solve it and nothing came :((( -- 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 -- Mark Murphy (a Commons Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy Android Training in London:http://bit.ly/smand1,http://bit.ly/smand2 -- 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: On CRC32, LVL and tamper-proof app
http://jeff-vogel.blogspot.com/2011/05/final-answer-for-what-to-do-to... I totally agree with that blog post. I believe the vast majority of users, at least for non-trivial apps, resort to piracy not because they are too cheap to pay for it, but because the app is not available in the country they live in and have no choice but to pirate. This is exactly the same reason why a lot of people download new-run TV shows using torrents. It has nothing to with being too cheap to pay a buck for a show, but the simple fact is that they are not given an option. Hulu is not available outside of the US and the 6-12 month delay is unacceptable to a lot of people. But I digress... I believe when the Android Market is finally made available in those additional 99 (really?) countries, things will improve. -- 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] Does HTC Friend Stream has open API?
Hi, Not all social accounts can be integrated with the HTC Friend Stream widget. I wonder if they have open API, so I can develop the integrate feature myself. -- Best Regards, Xi Shen (David) http://twitter.com/davidshen84/ -- 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] Eclipse and Android source code
Hi, I would like to debug Android framework; that's why, I followed the URL's steps : http://source.android.com/source/using-eclipse.html. Meanwhile, after creating a new Java Project, Eclipse display 3 errors : some JAVA_LIBRARIES are missing (google- common_intermediates, ...) then I delete these libraries in build path. These 3 errors disappear but 7500 new errors appear :ArrayListCursor cannot be resolved to a type , The import com.android.common cannot be resolved, What is wrong ? I don't understand how I can have so much errors because I followed the Using Eclipse tuto. -- 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: good 2d physics engine
JBox2D is decent enough. If you're writing a game using the NDK you should probably use the normal Box2D, it compiles readily on Android. On 11 Maj, 20:28, bob b...@coolgroups.com wrote: Can anyone recommend a good 2d physics engine for Android? -- 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] Message get disappeared when add SingleChoiceItems to alert dialog
Hi
I am working on android app. but i stuck at one point when i
tried to add SingleChoiceItems to alert dialog the alert message gets
disapear.,i dont know why this happens here is my code snippet.
//builder.setMessage(alertMessage).setCancelable(false);
builder.setSingleChoiceItems(alertChoices , -1, new
DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface
dialog, int which) {
// TODO Auto-generated method
stub
}
});
builder.setPositiveButton(Continue,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int id) {
dialogRunning = false;
dialog.cancel();
}
});
I want to add both message and singlechoiceitems to alert
dialog
thanks in advance
Regards
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[android-developers] Re: hash functions
Ah, I see your confusion, and I should have been more careful to forestall it. That's not what is meant here by a dictionary attack. What you describe is what is defended against by the iteration. The dictionary attack defended by a salt is where a *pre-computed* dictionary of keys for likely passwords is constructed. What the salt does is explode the size of that dictionary, basically making it infeasible to pre-compute the hashes for entries in a dictionary. Otherwise, you could bypass the iteration cost, by distributing the cost over a large number of attacks. Then you just search your dictionary for a key that fits, and do no key construction at all during the attack. Certainly iteration can be expensive! That's the whole point, and why it's not specified how many iterations are appropriate. You select the iteration count to determine how long the key computation should take. But the vast majority of the cost of doing a rekey? That would either imply a huge iteration count, or a small amount of data to be re-encrypted. In the former case -- don't do that. In the latter case -- it doesn't matter. Actually, it probably doesn't matter anyway, as rekeying is generally an administrative operation, not part of the overall performance of the system. But since the key is derived on first use, the absolute (clock) time consumed will be relevant there. The default iteration count for SQLCipher is 4000, which is pretty typical. But on slow hardware, I suppose that could be too high. In which case -- set it to a lower value. Typically, 100ms computation time after a user supplies a password is not going to be noticed, while 1000ms will. Balance that against the resources available to an attacker (which will vary by scenario and with the advancement of computing power). On Wednesday, May 11, 2011 5:27:30 PM UTC-7, DanH wrote: Salt doesn't prevent dictionary attacks at all. If I know that the password is an 6-character alpha then I can try all combos of that, dictionary or otherwise, regardless of how salted the encryption is. I've seen iteration add considerable overhead. In one SqlCipher implementation iteration was the vast majority of the CPU costs of doing a rekey. On May 10, 11:13 pm, Bob Kerns r@acm.org wrote: I think you missed part of what I was saying. It's important, so let me try to be more clear. Each of the two components does a different job. The salt prevents dictionary attacks, by expanding the space of dictionaries by the size of the salt (say, 2^128 or whatever you use.) The protection against trial-and-error cracking is where the iteration comes in -- you make it take a long time to generate the final key from the password. The salt isn't (in this context) to prevent plaintext attacks, but dictionary attacks, which are EXTREMELY relevant to this case. Increasing the length of a weak password has surprisingly little effect in the real world. Some, definitely, but not on the scale you'd expect from sheer length. And in a lot of contexts, you really can't force users to use such long passwords -- the password I'm forced to use on my phone for corporate security reasons is very very close to to rendering my phone unusable. The overhead that the iteration adds to the normal path is generally negligible, because it's done on the client side, once. You can tune the iteration count to balance the performance requirements vs the security requirements. If 100 ms is acceptable, then choose your iteration count accordingly, and you will limit the attacker to 10 attempts per second per CPU, which certainly beats 1000 attempts per second per CPU. On Tuesday, May 10, 2011 8:35:00 PM UTC-7, DanH wrote: Of course, hashing a password, per se, doesn't really make it any stronger. And doing things like using a salt don't do much if the concern is simple trial-and-error cracking of a single encrypted message (unless you're relying on security by obscurity). Salting does help prevent known plaintext attacks and signature spoofing, but those are not likely to be problems in low-volume messaging. Iterating on an expensive hash can help discourage the trial-and-error cracking attack, but it can add considerable overhead to the normal path, and simply increasing the length of a weak password would be far more effective. On May 10, 5:34 pm, Bob Kerns r@acm.org wrote: The fundamental problem with starting with a human-managed password is that there is not a lot of entropy -- the possible values are not distributed over a huge range, compared to what an attacker could try with trial-and-error. So just doing SHA1 or SHA256 for that matter, is not sufficient for a strong key generation algorithm. The first thing you need to address are dictionary attacks, where the
[android-developers] Re: Does HTC Friend Stream has open API?
Have you asked them? On May 12, 5:38 pm, Xi Shen davidshe...@googlemail.com wrote: Hi, Not all social accounts can be integrated with the HTC Friend Stream widget. I wonder if they have open API, so I can develop the integrate feature myself. -- Best Regards, Xi Shen (David) http://twitter.com/davidshen84/ -- 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: Order Sample Code by Complexity, Please
I understand what you're asking, but I don't think you're going to get what you're looking for. First, it's a lot of work. It's work that would be justified if you are teaching a course, but you'd probably do that with your own selection of examples. But more importantly -- there is no single order. There are a variety of paths through the examples, and through the learning process. It's not the inherent complexity of the examples that is the issue -- it is how many NEW topics an example would expose you to, and that depends your choice of examples before. Maybe someone will come up with an order for you -- and maybe you'll be happy with that result. But I think a better approach is to decide what kind of application you want to program, identify what concepts and demos are most relevant, and within the examples, identify a few pre-requesites. The API Demos example is a good starting point -- but it covers all kinds of topics. It's best thought of as one you come back to, whenever you need to use a new API. Probably the majority of the others, you won't ever use, or at least not soon. Most people probably won't play with the USB interfaces, some people won't care about a contact-manager application, while others won't care about a lunar lander game. So bottom line, my advice would be to play with the API demos, and look at the code for the ones you find interesting. Then go to the list, and play with whatever looks interesting. If you don't understand a specific API, go back to the API demos for help. Then when you find you need to do something new, come back to the list and look for relevant demos. If you're doing this for a course, rather than personal exploration, then I think you have to start from your course goals, and look for examples that support them. Either way, I don't think a sorted list is going to be as helpful as you think. -- 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] Device Admin Wipe
Hello;
I am trying to use the Device Admin APIs to wipe the device. I have the code
working but I hit a problem, so I went back to the original sample app in
C:\android-sdk-windows\samples\android-8\ApiDemos. My target is Froyo.
The problem is that the wipe only seems to work some of the time. This is
true of my app, the sample above and the Settings-Privacy-Factory data reset
option. Which ever I use. Sometimes I get a full reset, sometimes I get a
reboot.
Is this a known issue?
Are there any other requirements?
I assume the code is generally right because it works some of the time.
LogCat - If there is a usb cable attached, the reset does not work and gets
stuck in the boot loader. But the problem seems to be that sometimes the
reset does not seem to start properly. Here is what happens when it goes
wrong
05-12 12:10:56.789: DEBUG/ShutdownThread(1383): Notifying thread to start
radio shutdown
05-12 12:10:56.789: INFO/ShutdownThread(1383): just to make sure shutdown
actually started
05-12 12:10:56.799: INFO/ActivityManager(1383): Starting activity: Intent {
flg=0x1000 cmp=com.lge.poweroff/.PowerOff }
05-12 12:10:56.879: INFO/ShutdownThread(1383): Thread: state=NEW
isAlive=false
05-12 12:10:56.889: INFO/ShutdownThread(1383): Sending shutdown broadcast...
05-12 12:10:56.899: INFO/ActivityManager(1383): Start proc com.lge.poweroff
for activity com.lge.poweroff/.PowerOff: pid=2227 uid=10070 gids={}
05-12 12:10:56.909: WARN/SyncManager(1383): Writing sync state before
shutdown...
05-12 12:10:56.969: WARN/Flex(1770): getString FLEX_OPERATOR_CODE TMO
05-12 12:10:56.969: DEBUG/Exchange(1770): Shutdown onReceive
05-12 12:10:56.979: INFO/ShutdownThread(1383): Shutting down activity
manager...
05-12 12:10:57.019: WARN/UsageStats(1383): Writing usage stats before
shutdown...
05-12 12:10:57.049: WARN/BatteryStats(1383): Writing battery stats before
shutdown...
05-12 12:10:57.159: DEBUG/GpsLocationProvider(1383): mNavigating:true,
mStatus: 1, mLastFixTime: 0time_diff:1305198657159
05-12 12:10:57.229: WARN/LGE_data(1383): Send to FUNC_MMI_REQ_DATA_POWEROFF
from Shutdown thread
05-12 12:10:57.269: DEBUG/LGE_data(1482): handleDataFuncbyMMI(type:325) is
called
05-12 12:10:57.269: DEBUG/LGE_data(1482): FUNC_MMI_REQ_DATA_POWEROFF
triggered by app:-1
05-12 12:10:57.269: DEBUG/LGE_data(1482): handleDataFuncByRIL(type:205) is
called
05-12 12:10:57.269: DEBUG/LGE_data(1482): RIL::handleDataFuncByRIL(type:205)
is called
05-12 12:10:57.269: WARN/ShutdownThread(1383): Turning off radio...
05-12 12:10:57.269: VERBOSE/LGE_data(1482): [handleDataFuncByRIL]
FUNC_RIL_REQ_DATA_POWREOFF (data = -1
05-12 12:10:57.279: DEBUG/LGE_data(1482): GSMDataConnTrack handleMessage {
what=34 when=120959 arg1=1 obj=radioTurnedOff }
05-12 12:10:57.279: DEBUG/LGE_data(1482): [GsmDataConnectionTracker] Clean
up connection due to radioTurnedOff
05-12 12:10:57.279: DEBUG/LGE_data(1482): [GsmDataConnectionTracker]
setState: DISCONNECTING
05-12 12:10:57.279: DEBUG/LGE_data(1482): [GsmDataConnectionTracker]
cleanUpConnection: teardown, call conn.disconnect
05-12 12:10:57.279: INFO/ShutdownThread(1383): Waiting for Bluetooth and
Radio...
05-12 12:10:57.279: DEBUG/LGE_data(1482): [DataConnection] Stop poll NetStat
05-12 12:10:57.279: DEBUG/LGE_data(1482): GSMDataConnTrack handleMessage {
what=25 when=120965 obj=android.os.AsyncResult@451dacc0 }
05-12 12:10:57.279: DEBUG/LGE_data(1482): [GsmDataConnectionTracker]
EVENT_DISCONNECT_DONE
05-12 12:10:57.279: DEBUG/LGE_data(1482): [GsmDataConnectionTracker]
setState: IDLE
05-12 12:10:57.289: WARN/Flex(1383): getString FLEX_COUNTRY_CODE DE
05-12 12:10:57.289: WARN/Flex(1383): getString FLEX_OPERATOR_CODE TMO
05-12 12:10:57.299: DEBUG/MobileDataStateTracker(1383): hipri skipped as
new= DISCONNECTED, old= DISCONNECTED, reason= radioTurnedOff, apnTypeList=
default
05-12 12:10:57.299: DEBUG/MobileDataStateTracker(1383): dun skipped because
is not unavailable to apnTypeList(default
05-12 12:10:57.299: DEBUG/MobileDataStateTracker(1383): supl skipped because
is not unavailable to apnTypeList(default
05-12 12:10:57.319: DEBUG/MobileDataStateTracker(1383): mms skipped because
is not unavailable to apnTypeList(default
05-12 12:10:57.319: DEBUG/MobileDataStateTracker(1383): default Received
state= DISCONNECTED, old= DISCONNECTED, reason= radioTurnedOff, apnTypeList=
default
05-12 12:10:57.319: DEBUG/PhoneApp(1482): mReceiver:
ACTION_ANY_DATA_CONNECTION_STATE_CHANGED
05-12 12:10:57.319: DEBUG/PhoneApp(1482): - state: DISCONNECTED
05-12 12:10:57.319: DEBUG/PhoneApp(1482): - reason: radioTurnedOff
05-12 12:10:57.319: DEBUG/NotificationMgr(1482):
hideDataDisconnectedRoaming()...
05-12 12:10:57.329: DEBUG/DMClientService(1627): updateNetworkState,
statusWiFi : 4, statusCellularNetwork :0
05-12 12:10:57.329: DEBUG/DMClientService(1627): getNetworkStatus,
serviceType : Operator
05-12 12:10:57.329: DEBUG/DMClientService(1627): updateNetworkState:
NETWORK_STATE_DISCONNECTED
05-12
Re: [android-developers] Develop apps on-the-fly?
Every affiliate is provided with a *General affiliate link* upon signup. Your link is: * http://BigExtraCash.com/_6a6b7d72.htm* -- 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] Database corruption if I push apk again
Hi, I have a application which has a database. I pushed the apk to device and it is working fine. Now when I put the same apk again after some modification, database is corrupted. I need to manually, remove the database using rm -r data/data/packagename/databases Why my database is corrupting if i push again the apk 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] Android SDK Emulator setup
http://tinyurl.com/3kb32vx http://stackoverflow.com/questions/4756382/android-tablet-emulator http://stackoverflow.com/questions/4756382/android-tablet-emulator On Wed, May 11, 2011 at 4:36 PM, range...@gmail.com range...@gmail.comwrote: How can I setup the emulator that came with the SDK to act as a tablet instead of a phone? -- 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 -- --- http://aitorTheRed.blogspot.com http://www.last.fm/user/aitorTheRed/ -- 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] android jsoup
Every affiliate is provided with a *General affiliate link* upon signup. Your link is: * http://BigExtraCash.com/_6a6b7d72.htm* -- 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] Implement captcha in android?
Hi all, How to implement captcha in android like the following... http://www.codeproject.com/KB/aspnet/Ca ... aImage.gif Anybody help me ? Thanks Mubarak. -- 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] Change GPS configuration
Hi, I am developing a GPS application but I have realised that the NTP server of the gps.conf file is not the correct one. I need to change it (not in the application, just in my phone) in order to improve GPS performance, but I can only read the file since I do not have root permission to write. I have seen some numerical codes to change it on Samsung phones but none of them works on my Nexus One. Do you know any way to change the GPS configuration? Thank you very much -- 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] Calling an Activity when phone is locked by clicking two times on the END_CALL button
Hi, I need to call my Activity when user press two times on the END_CALL button (it need to work when the phone is locked). Is is that possible?? 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] Calling an Activity when phone is locked by clicking two times on the END_CALL button
Hi, I need to call my Activity when user press two times on the END_CALL button (it need to work when the phone is locked). Is is that possible?? 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] Ang.: Re: 2.3 Platform Google APIs missing Licensing Service..?
Same error on level 12. -- 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] UI Framework Bug?
Hello Android UI Gurus,
I have been struggling for a few days now with an annoying UI issue.
I've whittled the project down to nothing but a small demonstration of
the problem. I admit I'm pretty new to Android UI work, but at the
same time I'm an experienced, qualified engineer and I just can't seem
to figure this out. I was hoping to get some feedback from some of
you out there who are more familiar with the internals and
idiosyncrasies of the platform. Any help would be greatly
appreciated!
The desired behavior:
I have a list view. Each list view row consists of a text element,
and a hidden image. When an item is selected from the list, I'd like
to make the image visible, and, start an animation on it. Pretty
standard stuff here, we're talking basically about a loading
spinner.
The problem:
After selecting 2 or sometimes 3 items in the list, I see spinners
become visible and start animating for rows which were never
selected. The two things that lead me to believe this is a bug with
the platform are:
A) Putting in a break point I can clearly see that the underlying data
source from the list does not have the isSpinning property set for
the items that begin animating in a seemingly random manner.
and
B) The only code that makes the image visible and begins the animation
for that row is inside of my custom data adapter. Before it can start
the animation it changes the text field in that row as well. The text
fields are not changed in the rows where my spinners seem to appear of
their own accord.
The code:
As I said when I started this post I've removed everything from the
project except the relevant UI code. Here is what I have.
/res/layout
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
TextView
android:layout_width=fill_parent
android:layout_height=wrap_content
android:text=@string/hello/
ListView
android:id=@+id/android:list
android:layout_width=fill_parent
android:layout_height=fill_parent
android:cacheColorHint=#
android:background=@android:color/transparent
android:dividerHeight=1dip/
/LinearLayout
list_view_row.xml=
?xml version=1.0 encoding=utf-8?
LinearLayout xmlns:android=http://schemas.android.com/apk/res/
android
android:layout_width=fill_parent
android:layout_height=?android:attr/listPreferredItemHeight
android:padding=6dip
LinearLayout
android:layout_width=fill_parent
android:layout_height=wrap_content
android:orientation=horizontal
TextView
android:id=@+id/label
android:textSize=11sp
android:padding=2dip
android:gravity=center_vertical|center
android:layout_gravity=center_vertical|center
android:layout_width=wrap_content
android:layout_height=wrap_content
android:textColor=#ff/
ImageView
android:id=@+id/spinner
android:padding=2dip
android:src=@drawable/loading
android:layout_width=wrap_content
android:layout_height=wrap_content/
/LinearLayout
/LinearLayout
/res/anim
rotate.xml=
?xml version=1.0 encoding=UTF-8?
rotate
xmlns:android=http://schemas.android.com/apk/res/android;
android:fromDegrees=0
android:toDegrees=360
android:pivotX=50%
android:pivotY=50%
android:repeatCount=infinite
android:interpolator=@android:anim/linear_interpolator
android:duration=1900 /
/res/drawable
spinner.png
/src
MyContainer.java=
public class MyContainer {
private String mText = ;
private Boolean mLoading = false;
public void setText(String mText) {
this.mText = mText;
}
public String getText() {
return mText;
}
public void setIsLoading(Boolean mLoading) {
this.mLoading = mLoading;
}
public Boolean isLoading() {
return mLoading;
}
}
CustomAdapter.java=
public class CustomAdapter extends ArrayAdapterMyContainer {
private ArrayListMyContainer items;
private Context c = null;
public CustomAdapter(Context context, int textViewResourceId,
ArrayListMyContainer items) {
super(context, textViewResourceId, items);
this.items = items;
this.c = context;
}
@Override
public View getView(int position, View convertView, ViewGroup
parent) {
View v = convertView;
if (v == null) {
LayoutInflater vi =
(LayoutInflater)c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.list_view_row, null);
}
[android-developers] Error: Fragment already added
Hy all,
i have a problem with the Fragments, and i really dont know how to solve it.
hopefully somebody can help me.
I have a layout for portrait mode:
?xml version=1.0 encoding=utf-8?
RelativeLayout xmlns:android=http://schemas.android.com/apk/res/android;
android:layout_width=match_parent android:layout_height=match_parent
fragment class=ch.kusar.dwr.layout.OverviewFragment
android:id=@+id/overview android:layout_width=match_parent
android:layout_gravity=bottom android:layout_height=match_parent/
/RelativeLayout
and a layout for landscape mode:
?xml version=1.0 encoding=utf-8?
RelativeLayout xmlns:android=http://schemas.android.com/apk/res/android;
android:orientation=horizontal android:layout_width=match_parent
android:layout_height=match_parent
fragment class=ch.kusar.dwr.layout.OverviewFragment
android:id=@+id/overview android:layout_width=fill_parent
android:layout_height=60dp /
fragment class=ch.kusar.dwr.layout.ContentFragment
android:id=@+id/content android:layout_width=fill_parent
android:layout_height=fill_parent android:layout_below=@+id/overview /
/RelativeLayout
In the OverviewFragment, i have a method to show details.
void showDetails(int index) {
currentButton = index;
if (mDualPane) {
// We can display everything in-place with fragments, so update
// the list to highlight the selected item and show the data.
// getListView().setItemChecked(index, true);
// Check what fragment is currently shown, replace if needed.
ContentFragment cf = (ContentFragment) getFragmentManager()
.findFragmentById(R.id.content); // /hereChanged
// if (cf == null || (cf.getPressedButton() != index)) {
if (cf == null
|| (prefs.getInt(ContentEnum.PRESSEDBUTTON.name(), 0) != index)) {
// Make new fragment to show this selection.
// cf = ContentFragment.newInstance(index);
setPressedButton(index);
// Execute a transaction, replacing any existing fragment
// with this one inside the frame.
FragmentTransaction ft = getFragmentManager()
.beginTransaction();
ft.replace(R.id.content, cf); // /hereChanged
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.commit();
}
} else {
// Otherwise we need to launch a new activity to display
// the dialog fragment with selected text.
Intent intent = new Intent();
intent.setClass(getActivity(), ContentActivity.class);
// intent.putExtra(button, index);
setPressedButton(index);
startActivity(intent);
}
}
and the ContentFragment onCreateView looks like this:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Log.e(ContentFragment.onCreateView, onCreateView);
// TODO Auto-generated method stub
if (container == null) {
// // We have different layouts, and in one of them this
// // fragment's containing frame doesn't exist. The fragment
// // may still be created from its saved state, but there is
// // no reason to try to create its view hierarchy because it
// // won't be displayed. Note this is not needed -- we could
// // just run the code below, where we would create and return
// // the view hierarchy; it would just never be used.
//return null;
}
if (prefs.getInt(ContentEnum.PRESSEDBUTTON.name(), 0) == ContentEnum.
REMOTE
.ordinal()) {
view = ContentRemote.getRemoteView(inflater, container,
savedInstanceState);
Preferences.setPreferences(getActivity());
}
...
}
the if container == null, is always true. Why is this so?
and the other problem is, when i press a button, the showDetails is called.
When im in portrait mode, it works fine.
But when im in landscape mode, the following error is shown when i press a
button.
Does anyone has an idea how can i solve this?
thank you for your support
https://lh5.googleusercontent.com/_7FGGBnFM_RE/TcvqTciA4jI/AB4/VC7DswkWj6g/screen-capture-2.png
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[android-developers] need help with my Nexus S
Hello I was trying to install over the air 2.3.4, suddenly I am unable to boot the system. Currently it is saying that /system/build.prop no such file or directory. Can some one please help me. Thanks Gopal -- 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] need help with my Nexus S
Have you tried to start it into recovery mode? With DEXT you have to turn the phone on holding the camera button, dunno is is the same with Nexus. Search 'bout recovery mode. 2011/5/12 GSDroid gsridh...@gmail.com Hello I was trying to install over the air 2.3.4, suddenly I am unable to boot the system. Currently it is saying that /system/build.prop no such file or directory. Can some one please help me. Thanks Gopal -- 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 -- Jorge Luis Ferrari Cé Desenvolvedor / Web Designer Siga @JLFerrari -- 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] Ang.: Re: 2.3 Platform Google APIs missing Licensing Service..?
On Thu, May 12, 2011 at 10:35 PM, Jan Skarvall jan.skarv...@telia.com wrote: Same error on level 12. It's not part of the SDK, it's a separate library. You can download it using the Android SDK manager. -- 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 with my Nexus S
yes I have tried to recovery but it didn't help either Thanks Gopal On May 12, 7:30 am, Jorge Luis jorgelferr...@gmail.com wrote: Have you tried to start it into recovery mode? With DEXT you have to turn the phone on holding the camera button, dunno is is the same with Nexus. Search 'bout recovery mode. 2011/5/12 GSDroid gsridh...@gmail.com Hello I was trying to install over the air 2.3.4, suddenly I am unable to boot the system. Currently it is saying that /system/build.prop no such file or directory. Can some one please help me. Thanks Gopal -- 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 -- Jorge Luis Ferrari Cé Desenvolvedor / Web Designer Siga @JLFerrari -- 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: UI Framework Bug?
I believe you have a case of view reusing.
The ArrayAdapter will reuse row views whenever possible to preserve
memory. So if you set a Bitmap to visible that might be what carries
it as visible on usually the row X+5. So that you would need to reset
everything on the view that was dynamically changed in the GetView.
For example :
@Override
public View getView(int position, View convertView, ViewGroup
parent) {
View v = convertView;
if (v == null) {
LayoutInflater vi =
(LayoutInflater)c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.list_view_row, null);
}
TextView label = (TextView) v.findViewById(R.id.label);
ImageView spinner = (ImageView) v.findViewById(R.id.spinner);
MyContainer item = (MyContainer) items.get(position);
label.setText(item.getText());
spinner.setVisibility(View.INVISIBLE);
if (item.isLoading()) {
label.setText(***+item.getText()+***);
spinner = (ImageView)v.findViewById(R.id.spinner);
spinner.setVisibility(View.VISIBLE);
Animation spinnerAnimation =
AnimationUtils.loadAnimation(getContext(),
R.anim.rotate);
spinner.startAnimation(spinnerAnimation);
}
return v;
}
Not sure though.
Good luck.
Yahel
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[android-developers] Limit for number of strings in res/values/strings.xml
As I am externalizing all possible user-prompt error strings, the strings file is becoming pretty big. The aim of course is to keep future localization in mind. Is there a limit or a best-practice standard to how many strings should be put in resources? Will the performance degrade after a certain number? -- 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: UI Framework Bug?
I'm also including a few pics to illustrate the issue in case my text isn't entirely clear. [IMG]http://i53.tinypic.com/339oemx.png[/IMG] (http://tinypic.com/r/339oemx/7) [IMG]http://i53.tinypic.com/2qjhevo.png[/IMG] (http://tinypic.com/r/2qjhevo/7) [IMG]http://i56.tinypic.com/2s1agsp.png[/IMG] (http://tinypic.com/r/2s1agsp/7) -- 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: UI Framework Bug?
Thanks, Yahel. I will give your suggestion a try this morning. -- 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] aapt.exe takes minutes to complete in eclipse build.
Since I've updated to api level 11, it seems that building is super slow. Sometimes when eclipse is building the project it hangs at 'android library update' for minutes at a time, and process explorer shows appt.exe pegging my CPU. I've tried all the workarounds I could find by googling. -- setting -Dosgi.requiredJavaVersion=1.6 for Helios -- increasing the memory settings -- switching to Gallileo The only thing that seems to make it go away is changing the build target to less that api 11, which causes my project to not compile, but at least it gets past the 'library update' step. How can I figure out what aapt is doing for so long so I can try and mitigate this? I didn't see anything in the eclipse logs that pointed to this. What other options do I have to determine what's going on? -- 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: UI Framework Bug?
Yahel's post got me to thinking. I modified the getView method of my
data adapter to look like this:
@Override
public View getView(int position, View convertView, ViewGroup parent)
{
LayoutInflater vi =
(LayoutInflater)c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = vi.inflate(R.layout.list_view_row, null);
TextView label = (TextView) v.findViewById(R.id.label);
ImageView spinner = (ImageView) v.findViewById(R.id.spinner);
MyContainer item = (MyContainer) items.get(position);
label.setText(item.getText());
spinner.setVisibility(View.INVISIBLE);
if (item.isLoading()) {
label.setText(***+item.getText()+***);
spinner = (ImageView)v.findViewById(R.id.spinner);
spinner.setVisibility(View.VISIBLE);
Animation spinnerAnimation =
AnimationUtils.loadAnimation(getContext(), R.anim.rotate);
spinner.startAnimation(spinnerAnimation);
}
return v;
}
And the problem seems resolved! Great news for me. Though I wonder
if any of you can comment as to the performance hit / impact I might
expect to take reloading the view from the layout every single time
the adapter refreshes? I'm not experiencing any issues with the demo
program, but the lists in my actual application can get rather long
and include several lines of text for each row.
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[android-developers] In-app Billing Test
Hi All I cannot execute the app the test dungeon test . http://developer.android.com/intl/de/guide/market/billing/billing_testing.html#billing-testing-real Appears the following error: The market billing service is not available at this time. You can continue to use this app but you won't be able to make purchases I have the last version from market 2.3.6 and android 2.2 my handset is Motorola A893, my country is Peru and my account is from the denmark, my account is the developer account What is the problem? Thanks David -- 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: In-app Billing Test
from Today, is available the option In App Billing in Peru and 99 country too. I can testing this functionality and I no appears the errors previous in my handset Thanks David 2011/5/12 David Toledo dtole...@gmail.com Hi All I cannot execute the app the test dungeon test . http://developer.android.com/intl/de/guide/market/billing/billing_testing.html#billing-testing-real Appears the following error: The market billing service is not available at this time. You can continue to use this app but you won't be able to make purchases I have the last version from market 2.3.6 and android 2.2 my handset is Motorola A893, my country is Peru and my account is from the denmark, my account is the developer account What is the problem? Thanks David -- 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: How is In App Billing?
On May 9, 9:15 pm, Nikolay Elenkov nikolay.elen...@gmail.com wrote: On Tue, May 10, 2011 at 3:17 AM, Nathan critter...@crittermap.com wrote: I have looked at Urban Airship's solution. http://urbanairship.com/products/in-app-purchase/ Using third party solutions might violate the Developer agreement, so you'd probably want to get legal advice if you decide to use it. My understanding is that Urban Airship uses the Market solution, and implements the server portion and downloading of resources. As far as I know, there is no non-third party solution for these. Nathan -- 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: how to draw an ImageView with the same size regardless of device?
I want to put a toolbar in my application. The toolbar will use ImageViews as application buttons. I would like the ImageViews to be the exact same size regardless device; by same size I mean that, when rendered to the screen, if I measure them with a ruler, the dimensions will be the same. I would like this size to be ~10mm (the width of my index finger). I have been completely unsuccessful in accomplishing this. I am testing on a MDPI, large screen Acer Iconia Tab and a HDPI medium screen Samsung Galaxy Tab. If I set layout_width=50dip and layout_height=50dip, the buttons render as ~10mm on the Samsung, and ~8mm on the Acer. If I set the buttons as layout_width=12mm and layout_height=12mm, they render as 12mm on the Acer and ~9mm on the Galaxy (confusing that 50dip renders bigger on the Galaxy than the Acer, but 12 mm renders smaller on the Galaxy than on the Acer). If I place a 32pix x 32pix icon in my drawable-mdpi folder (and no equivalent in the drawable-hdpi folder), and set layout_width=wrap_content and layout_height=wrap_content; the results are similar to if set to 50dip, the Samsung is about 10mm, the Acer about 8mm. If I add a 48pix x 48pix icon to my drawable-hdpi folder, there is no change; presumably because the Acer still uses the mdpi icon and the Samsung uses the bigger one, but scales it down by 50% because it knows its hdpi (if am confident that this surprising scaling occurs because if I move the 48pix icon to the mdpi folder, and have nothing in the hdpi folder, the icon shows very large on the Samsung). I then attempted to calculate the number of pixels necessary for 10mm based on the values of xdpi and ydpi from DisplayMetrics: 10 mm in pixels = xdpi * 10 / 25.4. On the galaxy, this is 168.89 * 10 / 25.4 = 66. However, when I set the layout_width to 66, the button measured ~8mm wide. But, at 168.89 dpi, the dots per mm should be 6.64 (168.89/25.4), so 66pixels should be approximately 10mm. So, how could it measure 8mm? The Galaxy must be scaling down the layout parameters somehow. Is there any way to retrieve how much they are scaling down by, so that I can adjust for it? I am confused and could really use advice. How do I make my button fingertip sized regardless of dpi and screen size? -- 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] Android: how to draw an ImageView with the same size regardless of device?
Sorry as things are today you basically can't do this because many devices are not reporting the correct true screen dpi. If they did, the correct way to do this would be to use a physical unit for your dimensions --- that is 10mm if you want 10mm. But as I say, there are many devices out there that are not configured with the correct physical screen dpi do these units are at this point not usable. On Thu, May 12, 2011 at 8:50 AM, Ab abe.oppenh...@gmail.com wrote: I want to put a toolbar in my application. The toolbar will use ImageViews as application buttons. I would like the ImageViews to be the exact same size regardless device; by same size I mean that, when rendered to the screen, if I measure them with a ruler, the dimensions will be the same. I would like this size to be ~10mm (the width of my index finger). I have been completely unsuccessful in accomplishing this. I am testing on a MDPI, large screen Acer Iconia Tab and a HDPI medium screen Samsung Galaxy Tab. If I set layout_width=50dip and layout_height=50dip, the buttons render as ~10mm on the Samsung, and ~8mm on the Acer. If I set the buttons as layout_width=12mm and layout_height=12mm, they render as 12mm on the Acer and ~9mm on the Galaxy (confusing that 50dip renders bigger on the Galaxy than the Acer, but 12 mm renders smaller on the Galaxy than on the Acer). If I place a 32pix x 32pix icon in my drawable-mdpi folder (and no equivalent in the drawable-hdpi folder), and set layout_width=wrap_content and layout_height=wrap_content; the results are similar to if set to 50dip, the Samsung is about 10mm, the Acer about 8mm. If I add a 48pix x 48pix icon to my drawable-hdpi folder, there is no change; presumably because the Acer still uses the mdpi icon and the Samsung uses the bigger one, but scales it down by 50% because it knows its hdpi (if am confident that this surprising scaling occurs because if I move the 48pix icon to the mdpi folder, and have nothing in the hdpi folder, the icon shows very large on the Samsung). I then attempted to calculate the number of pixels necessary for 10mm based on the values of xdpi and ydpi from DisplayMetrics: 10 mm in pixels = xdpi * 10 / 25.4. On the galaxy, this is 168.89 * 10 / 25.4 = 66. However, when I set the layout_width to 66, the button measured ~8mm wide. But, at 168.89 dpi, the dots per mm should be 6.64 (168.89/25.4), so 66pixels should be approximately 10mm. So, how could it measure 8mm? The Galaxy must be scaling down the layout parameters somehow. Is there any way to retrieve how much they are scaling down by, so that I can adjust for it? I am confused and could really use advice. How do I make my button fingertip sized regardless of dpi and screen size? -- 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 -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- 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] Calling an Activity when phone is locked by clicking two times on the END_CALL button
Sorry you can't do this. On Thu, May 12, 2011 at 5:44 AM, souissi haythem haythe...@gmail.comwrote: Hi, I need to call my Activity when user press two times on the END_CALL button (it need to work when the phone is locked). Is is that possible?? 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 -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- 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: UI Framework Bug?
Don't re-inflate each time. Implement this correctly, where you re-use the
convertView if it is given. Just make sure you have the states of the views
set up correctly before you return.
On Thu, May 12, 2011 at 8:14 AM, authorwjf wfran...@softlayer.com wrote:
Yahel's post got me to thinking. I modified the getView method of my
data adapter to look like this:
@Override
public View getView(int position, View convertView, ViewGroup parent)
{
LayoutInflater vi =
(LayoutInflater)c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = vi.inflate(R.layout.list_view_row, null);
TextView label = (TextView) v.findViewById(R.id.label);
ImageView spinner = (ImageView) v.findViewById(R.id.spinner);
MyContainer item = (MyContainer) items.get(position);
label.setText(item.getText());
spinner.setVisibility(View.INVISIBLE);
if (item.isLoading()) {
label.setText(***+item.getText()+***);
spinner = (ImageView)v.findViewById(R.id.spinner);
spinner.setVisibility(View.VISIBLE);
Animation spinnerAnimation =
AnimationUtils.loadAnimation(getContext(), R.anim.rotate);
spinner.startAnimation(spinnerAnimation);
}
return v;
}
And the problem seems resolved! Great news for me. Though I wonder
if any of you can comment as to the performance hit / impact I might
expect to take reloading the view from the layout every single time
the adapter refreshes? I'm not experiencing any issues with the demo
program, but the lists in my actual application can get rather long
and include several lines of text for each row.
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Android framework engineer
hack...@android.com
Note: please don't send private questions to me, as I don't have time to
provide private support, and so won't reply to such e-mails. All such
questions should be posted on public forums, where I and others can see and
answer them.
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[android-developers] Re: UI Framework Bug?
Your solution seems to simple not reuse the views. I don't think you'll hit a performance issue speed-wise but you may want to check memory-wise as I believe this is the main reason behind this design. Especially if you have one bitmap per row, a long list of row could trigger Bitmap exceeds VM budget memory exceptions. Yahel -- 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: UI Framework Bug?
Not reusing views will most likely cause a noticeable performance impact for things like scrolling through the list, since now every time a new item in the list is shown a while new view hierarchy needs to be built for it. Always always recycle views. On Thu, May 12, 2011 at 9:15 AM, Yahel kaye...@gmail.com wrote: Your solution seems to simple not reuse the views. I don't think you'll hit a performance issue speed-wise but you may want to check memory-wise as I believe this is the main reason behind this design. Especially if you have one bitmap per row, a long list of row could trigger Bitmap exceeds VM budget memory exceptions. Yahel -- 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 -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- 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: how to draw an ImageView with the same size regardless of device?
Diane, Thank you for your reply. I have 2 quick follow up questions: 1. I seems that the fact that 66 pixels shows on my Galaxy as 8mm, when it should be 10mm (based on provided dpi), is do to a false dpi returned from DisplayMetrics. The Galaxy screen measures 3.5 inches wide, and the specs that its resolution is 1024 x 600. So, 600/3.5 = 171.48. Which is close enough to 168.89 that it doesn't explain the 2mm difference in button size. Am I incorrect in my thought that there is something else causing this discrepancy? 2. What is your recommendation to display a relatively consistently sized button? Possibly have different layouts for extra large devices, set the button dimensions to 50dip on regular devices, and 75dip on extra large devices? On May 12, 12:10 pm, Dianne Hackborn hack...@android.com wrote: Sorry as things are today you basically can't do this because many devices are not reporting the correct true screen dpi. If they did, the correct way to do this would be to use a physical unit for your dimensions --- that is 10mm if you want 10mm. But as I say, there are many devices out there that are not configured with the correct physical screen dpi do these units are at this point not usable. On Thu, May 12, 2011 at 8:50 AM, Ab abe.oppenh...@gmail.com wrote: I want to put a toolbar in my application. The toolbar will use ImageViews as application buttons. I would like the ImageViews to be the exact same size regardless device; by same size I mean that, when rendered to the screen, if I measure them with a ruler, the dimensions will be the same. I would like this size to be ~10mm (the width of my index finger). I have been completely unsuccessful in accomplishing this. I am testing on a MDPI, large screen Acer Iconia Tab and a HDPI medium screen Samsung Galaxy Tab. If I set layout_width=50dip and layout_height=50dip, the buttons render as ~10mm on the Samsung, and ~8mm on the Acer. If I set the buttons as layout_width=12mm and layout_height=12mm, they render as 12mm on the Acer and ~9mm on the Galaxy (confusing that 50dip renders bigger on the Galaxy than the Acer, but 12 mm renders smaller on the Galaxy than on the Acer). If I place a 32pix x 32pix icon in my drawable-mdpi folder (and no equivalent in the drawable-hdpi folder), and set layout_width=wrap_content and layout_height=wrap_content; the results are similar to if set to 50dip, the Samsung is about 10mm, the Acer about 8mm. If I add a 48pix x 48pix icon to my drawable-hdpi folder, there is no change; presumably because the Acer still uses the mdpi icon and the Samsung uses the bigger one, but scales it down by 50% because it knows its hdpi (if am confident that this surprising scaling occurs because if I move the 48pix icon to the mdpi folder, and have nothing in the hdpi folder, the icon shows very large on the Samsung). I then attempted to calculate the number of pixels necessary for 10mm based on the values of xdpi and ydpi from DisplayMetrics: 10 mm in pixels = xdpi * 10 / 25.4. On the galaxy, this is 168.89 * 10 / 25.4 = 66. However, when I set the layout_width to 66, the button measured ~8mm wide. But, at 168.89 dpi, the dots per mm should be 6.64 (168.89/25.4), so 66pixels should be approximately 10mm. So, how could it measure 8mm? The Galaxy must be scaling down the layout parameters somehow. Is there any way to retrieve how much they are scaling down by, so that I can adjust for it? I am confused and could really use advice. How do I make my button fingertip sized regardless of dpi and screen size? -- 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 -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- 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: How is In App Billing?
On Fri, May 13, 2011 at 12:58 AM, Nathan critter...@crittermap.com wrote: On May 9, 9:15 pm, Nikolay Elenkov nikolay.elen...@gmail.com wrote: On Tue, May 10, 2011 at 3:17 AM, Nathan critter...@crittermap.com wrote: I have looked at Urban Airship's solution. http://urbanairship.com/products/in-app-purchase/ Using third party solutions might violate the Developer agreement, so you'd probably want to get legal advice if you decide to use it. My understanding is that Urban Airship uses the Market solution, and implements the server portion and downloading of resources. As far as I know, there is no non-third party solution for these. If billing goes through the Android Market/Google Checkout, it is probably OK. But it's not exactly clear what they do from the website at least (I didn't read the blogs). -- 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: Development Patterns
I'm not sure what you mean... I've already developed a few apps and have been heavily using developer.android.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: Usage Statistics
Thank you both! On May 11, 8:14 pm, Marc Lester Tan mail...@gmail.com wrote: Take a look at UsageStatsService.java http://android.git.kernel.org/?p=platform/frameworks/base.git;a=blob;... http://android.git.kernel.org/?p=platform/frameworks/base.git;a=blob;...It monitors all the application resume/pause state and logs into files. and check how the settings app is using it here: http://android.git.kernel.org/?p=platform/packages/apps/Settings.git;... Not sure though if you can use it in your app. On Thu, May 12, 2011 at 10:29 AM, TreKing treking...@gmail.com wrote: On Wed, May 11, 2011 at 8:01 PM, Edmund chang.edm...@gmail.com wrote: For example, if I wanted to know how many times a certain APK was launched. How long it was used for. And also, if I wanted to know details about how the APK was being used such as how many times they played a certain music track in a music player app or passed a certain level in a game, can I inject some code into the APK to register this data? http://code.google.com/mobile/analytics/docs/android/ http://www.flurry.com/ I was wondering about details like where can I retrieve this from and is it centralized. Like can one APK retrieve this data that is written by all other APKs. I'm not really sure what you're asking. - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- 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 -- Cheers, *Marc Lester Tan * http://www.appalert.cohttp://moonphase.pendukosoftware.comhttp://blogs.marctan.com http://www.proudlypinoy.org/ -- 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: how to draw an ImageView with the same size regardless of device?
*Edit. Sorry, first sentence after 1. should read: IT seems that the fact that 66 pixels shows on my Galaxy as 8mm, when it should be 10mm (based on provided dpi), ISN'T DUE to a false dpi returned from DisplayMetrics. On May 12, 12:29 pm, Ab abe.oppenh...@gmail.com wrote: Diane, Thank you for your reply. I have 2 quick follow up questions: 1. I seems that the fact that 66 pixels shows on my Galaxy as 8mm, when it should be 10mm (based on provided dpi), is do to a false dpi returned from DisplayMetrics. The Galaxy screen measures 3.5 inches wide, and the specs that its resolution is 1024 x 600. So, 600/3.5 = 171.48. Which is close enough to 168.89 that it doesn't explain the 2mm difference in button size. Am I incorrect in my thought that there is something else causing this discrepancy? 2. What is your recommendation to display a relatively consistently sized button? Possibly have different layouts for extra large devices, set the button dimensions to 50dip on regular devices, and 75dip on extra large devices? On May 12, 12:10 pm, Dianne Hackborn hack...@android.com wrote: Sorry as things are today you basically can't do this because many devices are not reporting the correct true screen dpi. If they did, the correct way to do this would be to use a physical unit for your dimensions --- that is 10mm if you want 10mm. But as I say, there are many devices out there that are not configured with the correct physical screen dpi do these units are at this point not usable. On Thu, May 12, 2011 at 8:50 AM, Ab abe.oppenh...@gmail.com wrote: I want to put a toolbar in my application. The toolbar will use ImageViews as application buttons. I would like the ImageViews to be the exact same size regardless device; by same size I mean that, when rendered to the screen, if I measure them with a ruler, the dimensions will be the same. I would like this size to be ~10mm (the width of my index finger). I have been completely unsuccessful in accomplishing this. I am testing on a MDPI, large screen Acer Iconia Tab and a HDPI medium screen Samsung Galaxy Tab. If I set layout_width=50dip and layout_height=50dip, the buttons render as ~10mm on the Samsung, and ~8mm on the Acer. If I set the buttons as layout_width=12mm and layout_height=12mm, they render as 12mm on the Acer and ~9mm on the Galaxy (confusing that 50dip renders bigger on the Galaxy than the Acer, but 12 mm renders smaller on the Galaxy than on the Acer). If I place a 32pix x 32pix icon in my drawable-mdpi folder (and no equivalent in the drawable-hdpi folder), and set layout_width=wrap_content and layout_height=wrap_content; the results are similar to if set to 50dip, the Samsung is about 10mm, the Acer about 8mm. If I add a 48pix x 48pix icon to my drawable-hdpi folder, there is no change; presumably because the Acer still uses the mdpi icon and the Samsung uses the bigger one, but scales it down by 50% because it knows its hdpi (if am confident that this surprising scaling occurs because if I move the 48pix icon to the mdpi folder, and have nothing in the hdpi folder, the icon shows very large on the Samsung). I then attempted to calculate the number of pixels necessary for 10mm based on the values of xdpi and ydpi from DisplayMetrics: 10 mm in pixels = xdpi * 10 / 25.4. On the galaxy, this is 168.89 * 10 / 25.4 = 66. However, when I set the layout_width to 66, the button measured ~8mm wide. But, at 168.89 dpi, the dots per mm should be 6.64 (168.89/25.4), so 66pixels should be approximately 10mm. So, how could it measure 8mm? The Galaxy must be scaling down the layout parameters somehow. Is there any way to retrieve how much they are scaling down by, so that I can adjust for it? I am confused and could really use advice. How do I make my button fingertip sized regardless of dpi and screen size? -- 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 -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- 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
[android-developers] Re: good 2d physics engine
Box2d is a good idea, its what angry birds uses. -- 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] Development Patterns
On Wed, May 11, 2011 at 1:08 PM, Cory Kaufman allspirits...@gmail.comwrote: It's worked out well for me to create a base class that extends Activity that all of my other activities extend, so I have a central place to put common functionality. What happens when you need a MapActivity? Or ListActivity? Or ExpandableListActivity? Or ... ? When should strings be listed in values/strings.xml and when should they be hard coded? Does it need to be localized? Yes - strings.xml. No? - Hard code or (preferably) some configuration file. What kind of conventions should be used when giving views ids? Whatever makes sense to you. I go with tv_name for TextViews, rb_name for Radio Buttons, etc, etc. Makes them easy to find by what type you're looking for. Should there not be views in different layouts with the same name? Not if you're using those layouts together within the same parent(s). Then you might run into issues. - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- 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: Development Patterns
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 11, 11:08 am, Cory Kaufman allspirits...@gmail.com wrote: Hi, Has anyone started cataloging common design patterns that arise when developing Android apps? For example: It's worked out well for me to create a base class that extends Activity that all of my other activities extend, so I have a central place to put common functionality. When should strings be listed in values/strings.xml and when should they be hard coded? What kind of conventions should be used when giving views ids? Should there not be views in different layouts with the same name? Etc. Cory -- 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: Development Patterns
: http://123maza.com/65/rings780/ On May 11, 11:02 pm, Kacee komal...@gmail.com wrote: Please read little more fromhttp://developer.android.com Once you'll start writing Android code, these queries will go off On May 11, 2:08 pm, Cory Kaufman allspirits...@gmail.com wrote: Hi, Has anyone started cataloging common design patterns that arise when developing Android apps? For example: It's worked out well for me to create a base class that extends Activity that all of my other activities extend, so I have a central place to put common functionality. When should strings be listed in values/strings.xml and when should they be hard coded? What kind of conventions should be used when giving views ids? Should there not be views in different layouts with the same name? Etc. Cory -- 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: Development Patterns
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 12, 9:33 am, Cory Kaufman allspirits...@gmail.com wrote: I'm not sure what you mean... I've already developed a few apps and have been heavily using developer.android.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: Development Patterns
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 12, 10:06 am, TreKing treking...@gmail.com wrote: On Wed, May 11, 2011 at 1:08 PM, Cory Kaufman allspirits...@gmail.comwrote: It's worked out well for me to create a base class that extends Activity that all of my other activities extend, so I have a central place to put common functionality. What happens when you need a MapActivity? Or ListActivity? Or ExpandableListActivity? Or ... ? When should strings be listed in values/strings.xml and when should they be hard coded? Does it need to be localized? Yes - strings.xml. No? - Hard code or (preferably) some configuration file. What kind of conventions should be used when giving views ids? Whatever makes sense to you. I go with tv_name for TextViews, rb_name for Radio Buttons, etc, etc. Makes them easy to find by what type you're looking for. Should there not be views in different layouts with the same name? Not if you're using those layouts together within the same parent(s). Then you might run into issues. - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- 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: good 2d physics engine
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 11, 11:57 am, TreKing treking...@gmail.com wrote: On Wed, May 11, 2011 at 1:28 PM, bob b...@coolgroups.com wrote: Can anyone recommend a good 2d physics engine for Android? Always check the Google's first, as this type of question has usually already been asked (and answered) repeatedly.http://tinyurl.com/6cm8mwk - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- 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: good 2d physics engine
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 11, 6:41 pm, TreKing treking...@gmail.com wrote: On Wed, May 11, 2011 at 7:26 PM, Kristopher Micinski krismicin...@gmail.com wrote: The problem with this is that inevitably whenever someone does this their thread appears as the first link soon after... Word. But if they Google'd for such common queries, then the post would never exist to show up on Google ... Also, Google usually returns more than one result ... ;-) - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- 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: good 2d physics engine
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 12, 9:53 am, Eamonn Dunne eamonn.du...@gmail.com wrote: Box2d is a good idea, its what angry birds uses. -- 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: good 2d physics engine
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 11, 11:28 am, bob b...@coolgroups.com wrote: Can anyone recommend a good 2d physics engine for Android? -- 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: good 2d physics engine
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 11, 11:57 am, TreKing treking...@gmail.com wrote: On Wed, May 11, 2011 at 1:28 PM, bob b...@coolgroups.com wrote: Can anyone recommend a good 2d physics engine for Android? Always check the Google's first, as this type of question has usually already been asked (and answered) repeatedly.http://tinyurl.com/6cm8mwk - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- 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: good 2d physics engine
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 11, 6:41 pm, TreKing treking...@gmail.com wrote: On Wed, May 11, 2011 at 7:26 PM, Kristopher Micinski krismicin...@gmail.com wrote: The problem with this is that inevitably whenever someone does this their thread appears as the first link soon after... Word. But if they Google'd for such common queries, then the post would never exist to show up on Google ... Also, Google usually returns more than one result ... ;-) - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- 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: good 2d physics engine
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 11, 11:28 am, bob b...@coolgroups.com wrote: Can anyone recommend a good 2d physics engine for Android? -- 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: good 2d physics engine
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 12, 3:07 am, Jens dunkingbikk...@gmail.com wrote: JBox2D is decent enough. If you're writing a game using the NDK you should probably use the normal Box2D, it compiles readily on Android. On 11 Maj, 20:28, bob b...@coolgroups.com wrote: Can anyone recommend a good 2d physics engine for Android? -- 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: good 2d physics engine
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 12, 9:53 am, Eamonn Dunne eamonn.du...@gmail.com wrote: Box2d is a good idea, its what angry birds uses. -- 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: Usage Statistics
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 11, 6:01 pm, Edmund chang.edm...@gmail.com wrote: Hi, I was wondering what type of services exist to track usage and what type of usage data it has available. For example, if I wanted to know how many times a certain APK was launched. How long it was used for. And also, if I wanted to know details about how the APK was being used such as how many times they played a certain music track in a music player app or passed a certain level in a game, can I inject some code into the APK to register this data? I believe I saw an example of this at the Google I/O Extended 2011. However, I was wondering about details like where can I retrieve this from and is it centralized. Like can one APK retrieve this data that is written by all other APKs. Thanks, --Edmund Chang chang.edm...@gmail.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: Usage Statistics
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 11, 7:29 pm, TreKing treking...@gmail.com wrote: On Wed, May 11, 2011 at 8:01 PM, Edmund chang.edm...@gmail.com wrote: For example, if I wanted to know how many times a certain APK was launched. How long it was used for. And also, if I wanted to know details about how the APK was being used such as how many times they played a certain music track in a music player app or passed a certain level in a game, can I inject some code into the APK to register this data? http://code.google.com/mobile/analytics/docs/android/http://www.flurry.com/ I was wondering about details like where can I retrieve this from and is it centralized. Like can one APK retrieve this data that is written by all other APKs. I'm not really sure what you're asking. - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- 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: Usage Statistics
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 11, 8:14 pm, Marc Lester Tan mail...@gmail.com wrote: Take a look at UsageStatsService.java http://android.git.kernel.org/?p=platform/frameworks/base.git;a=blob;... http://android.git.kernel.org/?p=platform/frameworks/base.git;a=blob;...It monitors all the application resume/pause state and logs into files. and check how the settings app is using it here: http://android.git.kernel.org/?p=platform/packages/apps/Settings.git;... Not sure though if you can use it in your app. On Thu, May 12, 2011 at 10:29 AM, TreKing treking...@gmail.com wrote: On Wed, May 11, 2011 at 8:01 PM, Edmund chang.edm...@gmail.com wrote: For example, if I wanted to know how many times a certain APK was launched. How long it was used for. And also, if I wanted to know details about how the APK was being used such as how many times they played a certain music track in a music player app or passed a certain level in a game, can I inject some code into the APK to register this data? http://code.google.com/mobile/analytics/docs/android/ http://www.flurry.com/ I was wondering about details like where can I retrieve this from and is it centralized. Like can one APK retrieve this data that is written by all other APKs. I'm not really sure what you're asking. - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- 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 -- Cheers, *Marc Lester Tan * http://www.appalert.cohttp://moonphase.pendukosoftware.comhttp://blogs.marctan.com http://www.proudlypinoy.org/ -- 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: Usage Statistics
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 12, 9:45 am, Edmund chang.edm...@gmail.com wrote: Thank you both! On May 11, 8:14 pm, Marc Lester Tan mail...@gmail.com wrote: Take a look at UsageStatsService.java http://android.git.kernel.org/?p=platform/frameworks/base.git;a=blob;... http://android.git.kernel.org/?p=platform/frameworks/base.git;a=blob;...It monitors all the application resume/pause state and logs into files. and check how the settings app is using it here: http://android.git.kernel.org/?p=platform/packages/apps/Settings.git;... Not sure though if you can use it in your app. On Thu, May 12, 2011 at 10:29 AM, TreKing treking...@gmail.com wrote: On Wed, May 11, 2011 at 8:01 PM, Edmund chang.edm...@gmail.com wrote: For example, if I wanted to know how many times a certain APK was launched. How long it was used for. And also, if I wanted to know details about how the APK was being used such as how many times they played a certain music track in a music player app or passed a certain level in a game, can I inject some code into the APK to register this data? http://code.google.com/mobile/analytics/docs/android/ http://www.flurry.com/ I was wondering about details like where can I retrieve this from and is it centralized. Like can one APK retrieve this data that is written by all other APKs. I'm not really sure what you're asking. - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- 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 -- Cheers, *Marc Lester Tan * http://www.appalert.cohttp://moonphase.pendukosoftware.comhttp://blog... http://www.proudlypinoy.org/ -- 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: how to draw an ImageView with the same size regardless of device?
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 12, 9:10 am, Dianne Hackborn hack...@android.com wrote: Sorry as things are today you basically can't do this because many devices are not reporting the correct true screen dpi. If they did, the correct way to do this would be to use a physical unit for your dimensions --- that is 10mm if you want 10mm. But as I say, there are many devices out there that are not configured with the correct physical screen dpi do these units are at this point not usable. On Thu, May 12, 2011 at 8:50 AM, Ab abe.oppenh...@gmail.com wrote: I want to put a toolbar in my application. The toolbar will use ImageViews as application buttons. I would like the ImageViews to be the exact same size regardless device; by same size I mean that, when rendered to the screen, if I measure them with a ruler, the dimensions will be the same. I would like this size to be ~10mm (the width of my index finger). I have been completely unsuccessful in accomplishing this. I am testing on a MDPI, large screen Acer Iconia Tab and a HDPI medium screen Samsung Galaxy Tab. If I set layout_width=50dip and layout_height=50dip, the buttons render as ~10mm on the Samsung, and ~8mm on the Acer. If I set the buttons as layout_width=12mm and layout_height=12mm, they render as 12mm on the Acer and ~9mm on the Galaxy (confusing that 50dip renders bigger on the Galaxy than the Acer, but 12 mm renders smaller on the Galaxy than on the Acer). If I place a 32pix x 32pix icon in my drawable-mdpi folder (and no equivalent in the drawable-hdpi folder), and set layout_width=wrap_content and layout_height=wrap_content; the results are similar to if set to 50dip, the Samsung is about 10mm, the Acer about 8mm. If I add a 48pix x 48pix icon to my drawable-hdpi folder, there is no change; presumably because the Acer still uses the mdpi icon and the Samsung uses the bigger one, but scales it down by 50% because it knows its hdpi (if am confident that this surprising scaling occurs because if I move the 48pix icon to the mdpi folder, and have nothing in the hdpi folder, the icon shows very large on the Samsung). I then attempted to calculate the number of pixels necessary for 10mm based on the values of xdpi and ydpi from DisplayMetrics: 10 mm in pixels = xdpi * 10 / 25.4. On the galaxy, this is 168.89 * 10 / 25.4 = 66. However, when I set the layout_width to 66, the button measured ~8mm wide. But, at 168.89 dpi, the dots per mm should be 6.64 (168.89/25.4), so 66pixels should be approximately 10mm. So, how could it measure 8mm? The Galaxy must be scaling down the layout parameters somehow. Is there any way to retrieve how much they are scaling down by, so that I can adjust for it? I am confused and could really use advice. How do I make my button fingertip sized regardless of dpi and screen size? -- 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 -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- 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: how to draw an ImageView with the same size regardless of device?
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 12, 9:41 am, Ab abe.oppenh...@gmail.com wrote: *Edit. Sorry, first sentence after 1. should read: IT seems that the fact that 66 pixels shows on my Galaxy as 8mm, when it should be 10mm (based on provided dpi), ISN'T DUE to a false dpi returned from DisplayMetrics. On May 12, 12:29 pm, Ab abe.oppenh...@gmail.com wrote: Diane, Thank you for your reply. I have 2 quick follow up questions: 1. I seems that the fact that 66 pixels shows on my Galaxy as 8mm, when it should be 10mm (based on provided dpi), is do to a false dpi returned from DisplayMetrics. The Galaxy screen measures 3.5 inches wide, and the specs that its resolution is 1024 x 600. So, 600/3.5 = 171.48. Which is close enough to 168.89 that it doesn't explain the 2mm difference in button size. Am I incorrect in my thought that there is something else causing this discrepancy? 2. What is your recommendation to display a relatively consistently sized button? Possibly have different layouts for extra large devices, set the button dimensions to 50dip on regular devices, and 75dip on extra large devices? On May 12, 12:10 pm, Dianne Hackborn hack...@android.com wrote: Sorry as things are today you basically can't do this because many devices are not reporting the correct true screen dpi. If they did, the correct way to do this would be to use a physical unit for your dimensions --- that is 10mm if you want 10mm. But as I say, there are many devices out there that are not configured with the correct physical screen dpi do these units are at this point not usable. On Thu, May 12, 2011 at 8:50 AM, Ab abe.oppenh...@gmail.com wrote: I want to put a toolbar in my application. The toolbar will use ImageViews as application buttons. I would like the ImageViews to be the exact same size regardless device; by same size I mean that, when rendered to the screen, if I measure them with a ruler, the dimensions will be the same. I would like this size to be ~10mm (the width of my index finger). I have been completely unsuccessful in accomplishing this. I am testing on a MDPI, large screen Acer Iconia Tab and a HDPI medium screen Samsung Galaxy Tab. If I set layout_width=50dip and layout_height=50dip, the buttons render as ~10mm on the Samsung, and ~8mm on the Acer. If I set the buttons as layout_width=12mm and layout_height=12mm, they render as 12mm on the Acer and ~9mm on the Galaxy (confusing that 50dip renders bigger on the Galaxy than the Acer, but 12 mm renders smaller on the Galaxy than on the Acer). If I place a 32pix x 32pix icon in my drawable-mdpi folder (and no equivalent in the drawable-hdpi folder), and set layout_width=wrap_content and layout_height=wrap_content; the results are similar to if set to 50dip, the Samsung is about 10mm, the Acer about 8mm. If I add a 48pix x 48pix icon to my drawable-hdpi folder, there is no change; presumably because the Acer still uses the mdpi icon and the Samsung uses the bigger one, but scales it down by 50% because it knows its hdpi (if am confident that this surprising scaling occurs because if I move the 48pix icon to the mdpi folder, and have nothing in the hdpi folder, the icon shows very large on the Samsung). I then attempted to calculate the number of pixels necessary for 10mm based on the values of xdpi and ydpi from DisplayMetrics: 10 mm in pixels = xdpi * 10 / 25.4. On the galaxy, this is 168.89 * 10 / 25.4 = 66. However, when I set the layout_width to 66, the button measured ~8mm wide. But, at 168.89 dpi, the dots per mm should be 6.64 (168.89/25.4), so 66pixels should be approximately 10mm. So, how could it measure 8mm? The Galaxy must be scaling down the layout parameters somehow. Is there any way to retrieve how much they are scaling down by, so that I can adjust for it? I am confused and could really use advice. How do I make my button fingertip sized regardless of dpi and screen size? -- 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 -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- You received this message because you are subscribed to the
[android-developers] Re: UI Framework Bug?
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/:
http://123maza.com/65/rings780/
On May 12, 7:13 am, authorwjf wfran...@softlayer.com wrote:
Hello Android UI Gurus,
I have been struggling for a few days now with an annoying UI issue.
I've whittled the project down to nothing but a small demonstration of
the problem. I admit I'm pretty new to Android UI work, but at the
same time I'm an experienced, qualified engineer and I just can't seem
to figure this out. I was hoping to get some feedback from some of
you out there who are more familiar with the internals and
idiosyncrasies of the platform. Any help would be greatly
appreciated!
The desired behavior:
I have a list view. Each list view row consists of a text element,
and a hidden image. When an item is selected from the list, I'd like
to make the image visible, and, start an animation on it. Pretty
standard stuff here, we're talking basically about a loading
spinner.
The problem:
After selecting 2 or sometimes 3 items in the list, I see spinners
become visible and start animating for rows which were never
selected. The two things that lead me to believe this is a bug with
the platform are:
A) Putting in a break point I can clearly see that the underlying data
source from the list does not have the isSpinning property set for
the items that begin animating in a seemingly random manner.
and
B) The only code that makes the image visible and begins the animation
for that row is inside of my custom data adapter. Before it can start
the animation it changes the text field in that row as well. The text
fields are not changed in the rows where my spinners seem to appear of
their own accord.
The code:
As I said when I started this post I've removed everything from the
project except the relevant UI code. Here is what I have.
/res/layout
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
TextView
android:layout_width=fill_parent
android:layout_height=wrap_content
android:text=@string/hello/
ListView
android:id=@+id/android:list
android:layout_width=fill_parent
android:layout_height=fill_parent
android:cacheColorHint=#
android:background=@android:color/transparent
android:dividerHeight=1dip/
/LinearLayout
list_view_row.xml=
?xml version=1.0 encoding=utf-8?
LinearLayout xmlns:android=http://schemas.android.com/apk/res/
android
android:layout_width=fill_parent
android:layout_height=?android:attr/listPreferredItemHeight
android:padding=6dip
LinearLayout
android:layout_width=fill_parent
android:layout_height=wrap_content
android:orientation=horizontal
TextView
android:id=@+id/label
android:textSize=11sp
android:padding=2dip
android:gravity=center_vertical|center
android:layout_gravity=center_vertical|center
android:layout_width=wrap_content
android:layout_height=wrap_content
android:textColor=#ff/
ImageView
android:id=@+id/spinner
android:padding=2dip
android:src=@drawable/loading
android:layout_width=wrap_content
android:layout_height=wrap_content/
/LinearLayout
/LinearLayout
/res/anim
rotate.xml=
?xml version=1.0 encoding=UTF-8?
rotate
xmlns:android=http://schemas.android.com/apk/res/android;
android:fromDegrees=0
android:toDegrees=360
android:pivotX=50%
android:pivotY=50%
android:repeatCount=infinite
android:interpolator=@android:anim/linear_interpolator
android:duration=1900 /
/res/drawable
spinner.png
/src
MyContainer.java=
public class MyContainer {
private String mText = ;
private Boolean mLoading = false;
public void setText(String mText) {
this.mText = mText;
}
public String getText() {
return mText;
}
public void setIsLoading(Boolean mLoading) {
this.mLoading = mLoading;
}
public Boolean isLoading() {
return mLoading;
}
}
CustomAdapter.java=
public class CustomAdapter extends ArrayAdapterMyContainer {
private ArrayListMyContainer items;
private Context c = null;
public CustomAdapter(Context context, int textViewResourceId,
ArrayListMyContainer items) {
super(context, textViewResourceId, items);
this.items = items;
this.c = context;
}
@Override
public View getView(int position,
[android-developers] Re: Android: how to draw an ImageView with the same size regardless of device?
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 12, 8:50 am, Ab abe.oppenh...@gmail.com wrote: I want to put a toolbar in my application. The toolbar will use ImageViews as application buttons. I would like the ImageViews to be the exact same size regardless device; by same size I mean that, when rendered to the screen, if I measure them with a ruler, the dimensions will be the same. I would like this size to be ~10mm (the width of my index finger). I have been completely unsuccessful in accomplishing this. I am testing on a MDPI, large screen Acer Iconia Tab and a HDPI medium screen Samsung Galaxy Tab. If I set layout_width=50dip and layout_height=50dip, the buttons render as ~10mm on the Samsung, and ~8mm on the Acer. If I set the buttons as layout_width=12mm and layout_height=12mm, they render as 12mm on the Acer and ~9mm on the Galaxy (confusing that 50dip renders bigger on the Galaxy than the Acer, but 12 mm renders smaller on the Galaxy than on the Acer). If I place a 32pix x 32pix icon in my drawable-mdpi folder (and no equivalent in the drawable-hdpi folder), and set layout_width=wrap_content and layout_height=wrap_content; the results are similar to if set to 50dip, the Samsung is about 10mm, the Acer about 8mm. If I add a 48pix x 48pix icon to my drawable-hdpi folder, there is no change; presumably because the Acer still uses the mdpi icon and the Samsung uses the bigger one, but scales it down by 50% because it knows its hdpi (if am confident that this surprising scaling occurs because if I move the 48pix icon to the mdpi folder, and have nothing in the hdpi folder, the icon shows very large on the Samsung). I then attempted to calculate the number of pixels necessary for 10mm based on the values of xdpi and ydpi from DisplayMetrics: 10 mm in pixels = xdpi * 10 / 25.4. On the galaxy, this is 168.89 * 10 / 25.4 = 66. However, when I set the layout_width to 66, the button measured ~8mm wide. But, at 168.89 dpi, the dots per mm should be 6.64 (168.89/25.4), so 66pixels should be approximately 10mm. So, how could it measure 8mm? The Galaxy must be scaling down the layout parameters somehow. Is there any way to retrieve how much they are scaling down by, so that I can adjust for it? I am confused and could really use advice. How do I make my button fingertip sized regardless of dpi and screen size? -- 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: UI Framework Bug?
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/
On May 12, 7:47 am, Yahel kaye...@gmail.com wrote:
I believe you have a case of view reusing.
The ArrayAdapter will reuse row views whenever possible to preserve
memory. So if you set a Bitmap to visible that might be what carries
it as visible on usually the row X+5. So that you would need to reset
everything on the view that was dynamically changed in the GetView.
For example :
@Override
public View getView(int position, View convertView, ViewGroup
parent) {
View v = convertView;
if (v == null) {
LayoutInflater vi =
(LayoutInflater)c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.list_view_row, null);
}
TextView label = (TextView) v.findViewById(R.id.label);
ImageView spinner = (ImageView) v.findViewById(R.id.spinner);
MyContainer item = (MyContainer) items.get(position);
label.setText(item.getText());
spinner.setVisibility(View.INVISIBLE);
if (item.isLoading()) {
label.setText(***+item.getText()+***);
spinner = (ImageView)v.findViewById(R.id.spinner);
spinner.setVisibility(View.VISIBLE);
Animation spinnerAnimation =
AnimationUtils.loadAnimation(getContext(),
R.anim.rotate);
spinner.startAnimation(spinnerAnimation);
}
return v;
}
Not sure though.
Good luck.
Yahel
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[android-developers] Re: UI Framework Bug?
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 12, 8:02 am, authorwjf wfran...@softlayer.com wrote: I'm also including a few pics to illustrate the issue in case my text isn't entirely clear. [IMG]http://i53.tinypic.com/339oemx.png[/IMG] (http://tinypic.com/r/339oemx/7) [IMG]http://i53.tinypic.com/2qjhevo.png[/IMG] (http://tinypic.com/r/2qjhevo/7) [IMG]http://i56.tinypic.com/2s1agsp.png[/IMG] (http://tinypic.com/r/2s1agsp/7) -- 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: UI Framework Bug?
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 12, 8:04 am, authorwjf wfran...@softlayer.com wrote: Thanks, Yahel. I will give your suggestion a try this morning. -- 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: UI Framework Bug?
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/:
http://123maza.com/65/rings780/
On May 12, 8:14 am, authorwjf wfran...@softlayer.com wrote:
Yahel's post got me to thinking. I modified the getView method of my
data adapter to look like this:
@Override
public View getView(int position, View convertView, ViewGroup parent)
{
LayoutInflater vi =
(LayoutInflater)c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = vi.inflate(R.layout.list_view_row, null);
TextView label = (TextView) v.findViewById(R.id.label);
ImageView spinner = (ImageView) v.findViewById(R.id.spinner);
MyContainer item = (MyContainer) items.get(position);
label.setText(item.getText());
spinner.setVisibility(View.INVISIBLE);
if (item.isLoading()) {
label.setText(***+item.getText()+***);
spinner = (ImageView)v.findViewById(R.id.spinner);
spinner.setVisibility(View.VISIBLE);
Animation spinnerAnimation =
AnimationUtils.loadAnimation(getContext(), R.anim.rotate);
spinner.startAnimation(spinnerAnimation);
}
return v;
}
And the problem seems resolved! Great news for me. Though I wonder
if any of you can comment as to the performance hit / impact I might
expect to take reloading the view from the layout every single time
the adapter refreshes? I'm not experiencing any issues with the demo
program, but the lists in my actual application can get rather long
and include several lines of text for each row.
--
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[android-developers] Re: UI Framework Bug?
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/:
http://123maza.com/65/rings780/
On May 12, 9:12 am, Dianne Hackborn hack...@android.com wrote:
Don't re-inflate each time. Implement this correctly, where you re-use the
convertView if it is given. Just make sure you have the states of the views
set up correctly before you return.
On Thu, May 12, 2011 at 8:14 AM, authorwjf wfran...@softlayer.com wrote:
Yahel's post got me to thinking. I modified the getView method of my
data adapter to look like this:
@Override
public View getView(int position, View convertView, ViewGroup parent)
{
LayoutInflater vi =
(LayoutInflater)c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = vi.inflate(R.layout.list_view_row, null);
TextView label = (TextView) v.findViewById(R.id.label);
ImageView spinner = (ImageView) v.findViewById(R.id.spinner);
MyContainer item = (MyContainer) items.get(position);
label.setText(item.getText());
spinner.setVisibility(View.INVISIBLE);
if (item.isLoading()) {
label.setText(***+item.getText()+***);
spinner = (ImageView)v.findViewById(R.id.spinner);
spinner.setVisibility(View.VISIBLE);
Animation spinnerAnimation =
AnimationUtils.loadAnimation(getContext(), R.anim.rotate);
spinner.startAnimation(spinnerAnimation);
}
return v;
}
And the problem seems resolved! Great news for me. Though I wonder
if any of you can comment as to the performance hit / impact I might
expect to take reloading the view from the layout every single time
the adapter refreshes? I'm not experiencing any issues with the demo
program, but the lists in my actual application can get rather long
and include several lines of text for each row.
--
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Dianne Hackborn
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[android-developers] Re: UI Framework Bug?
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 12, 9:15 am, Yahel kaye...@gmail.com wrote: Your solution seems to simple not reuse the views. I don't think you'll hit a performance issue speed-wise but you may want to check memory-wise as I believe this is the main reason behind this design. Especially if you have one bitmap per row, a long list of row could trigger Bitmap exceeds VM budget memory exceptions. Yahel -- 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: UI Framework Bug?
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 12, 9:28 am, Dianne Hackborn hack...@android.com wrote: Not reusing views will most likely cause a noticeable performance impact for things like scrolling through the list, since now every time a new item in the list is shown a while new view hierarchy needs to be built for it. Always always recycle views. On Thu, May 12, 2011 at 9:15 AM, Yahel kaye...@gmail.com wrote: Your solution seems to simple not reuse the views. I don't think you'll hit a performance issue speed-wise but you may want to check memory-wise as I believe this is the main reason behind this design. Especially if you have one bitmap per row, a long list of row could trigger Bitmap exceeds VM budget memory exceptions. Yahel -- 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 -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- 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: how to draw an ImageView with the same size regardless of device?
: http://123maza.com/65/rings780/: http://123maza.com/65/rings780/ On May 12, 9:29 am, Ab abe.oppenh...@gmail.com wrote: Diane, Thank you for your reply. I have 2 quick follow up questions: 1. I seems that the fact that 66 pixels shows on my Galaxy as 8mm, when it should be 10mm (based on provided dpi), is do to a false dpi returned from DisplayMetrics. The Galaxy screen measures 3.5 inches wide, and the specs that its resolution is 1024 x 600. So, 600/3.5 = 171.48. Which is close enough to 168.89 that it doesn't explain the 2mm difference in button size. Am I incorrect in my thought that there is something else causing this discrepancy? 2. What is your recommendation to display a relatively consistently sized button? Possibly have different layouts for extra large devices, set the button dimensions to 50dip on regular devices, and 75dip on extra large devices? On May 12, 12:10 pm, Dianne Hackborn hack...@android.com wrote: Sorry as things are today you basically can't do this because many devices are not reporting the correct true screen dpi. If they did, the correct way to do this would be to use a physical unit for your dimensions --- that is 10mm if you want 10mm. But as I say, there are many devices out there that are not configured with the correct physical screen dpi do these units are at this point not usable. On Thu, May 12, 2011 at 8:50 AM, Ab abe.oppenh...@gmail.com wrote: I want to put a toolbar in my application. The toolbar will use ImageViews as application buttons. I would like the ImageViews to be the exact same size regardless device; by same size I mean that, when rendered to the screen, if I measure them with a ruler, the dimensions will be the same. I would like this size to be ~10mm (the width of my index finger). I have been completely unsuccessful in accomplishing this. I am testing on a MDPI, large screen Acer Iconia Tab and a HDPI medium screen Samsung Galaxy Tab. If I set layout_width=50dip and layout_height=50dip, the buttons render as ~10mm on the Samsung, and ~8mm on the Acer. If I set the buttons as layout_width=12mm and layout_height=12mm, they render as 12mm on the Acer and ~9mm on the Galaxy (confusing that 50dip renders bigger on the Galaxy than the Acer, but 12 mm renders smaller on the Galaxy than on the Acer). If I place a 32pix x 32pix icon in my drawable-mdpi folder (and no equivalent in the drawable-hdpi folder), and set layout_width=wrap_content and layout_height=wrap_content; the results are similar to if set to 50dip, the Samsung is about 10mm, the Acer about 8mm. If I add a 48pix x 48pix icon to my drawable-hdpi folder, there is no change; presumably because the Acer still uses the mdpi icon and the Samsung uses the bigger one, but scales it down by 50% because it knows its hdpi (if am confident that this surprising scaling occurs because if I move the 48pix icon to the mdpi folder, and have nothing in the hdpi folder, the icon shows very large on the Samsung). I then attempted to calculate the number of pixels necessary for 10mm based on the values of xdpi and ydpi from DisplayMetrics: 10 mm in pixels = xdpi * 10 / 25.4. On the galaxy, this is 168.89 * 10 / 25.4 = 66. However, when I set the layout_width to 66, the button measured ~8mm wide. But, at 168.89 dpi, the dots per mm should be 6.64 (168.89/25.4), so 66pixels should be approximately 10mm. So, how could it measure 8mm? The Galaxy must be scaling down the layout parameters somehow. Is there any way to retrieve how much they are scaling down by, so that I can adjust for it? I am confused and could really use advice. How do I make my button fingertip sized regardless of dpi and screen size? -- 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 -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- 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
