[android-developers] Re: for loop gives NullPointer Exception
I had used the same..
but it gives the Exception in first iteration itself..
On Sep 11, 4:41 pm, joyband joyb...@163.com wrote:
Use Log to debug the index number i
On 9月11日, 下午7时35分, Asif k asifk1...@gmail.com wrote:
Hi all,
I am getting null pointer exception at the bellow mentioned line in
the for loop.
char[] buffer= {'s','d','c'};
char[] test;
for(int i=0; buffer[i]!='\n';i++) {
test[i] = buffer[i]; //This line gives Null pointer
Exception at runtime
}
I am getting the same error in each for loop where I am equating
something.- Hide quoted text -
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[android-developers] Re: error msg after run a thread
Use post and handler mechanism or RunFromUI interface.
Thanks
asif
On Aug 20, 11:16 am, tstanly tsai.sta...@gmail.com wrote:
thanks for reply,
so how can I do for change thread's control to change my UI?
thanks!
On 8月20日, 下午1時03分, star double doublestar...@gmail.com wrote:
My god, you must change your UI in main thread but not your new thread , it
is android's rule .
2009/8/20 tstanly tsai.sta...@gmail.com
hi all,
I write a thread, and do show() after thread complete,
but I always get the error msg bellow,
and this show() function is ok, because I put it on other location of
program,
and it works fine.
plz help me!
thanks!
error msg===
E/AndroidRuntime( 746): Uncaught handler: thread Thread-8 exiting due
to uncaug
ht exception
E/AndroidRuntime( 746): android.view.ViewRoot
$CalledFromWrongThreadException: O
nly the original thread that created a view hierarchy can touch its
views.
code===
new Thread()
{
public void run()
{
try{
} /* end of try */
catch (Exception e)
{
Log.d(tsai_error1,e.getMessage());
} /* end of catch */
finally
{
mProgressDialog2.dismiss();
} /* end of finally */
}/* end of run */
}.start();
show();- 隱藏被引用文字 -
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[android-developers] Re: error while building the android code using make
Hi, I have not got solution yet.. Has anyone ??? On Jul 17, 3:21 pm, Android development smu...@gmail.com wrote: Hi Asif k, Have you resolved this problem? I have the same problem. [...@myandroid]$ make build/core/product_config.mk:232: WARNING: adding test OTA key TARGET_PRODUCT=generic TARGET_BUILD_VARIANT=eng TARGET_SIMULATOR= TARGET_BUILD_TYPE=release TARGET_ARCH=arm HOST_ARCH=x86 HOST_OS=linux HOST_BUILD_TYPE=release BUILD_ID= find: invalid predicate `-L' frameworks/policies/base/PolicyConfig.mk:22: *** No module defined for the given PRODUCT_POLICY (android.policy_phone). Stop. On 7月17日, 下午3时05分, Ask asifk1...@gmail.com wrote: Hi Fred, If you got the answer then can you please send me some useful link. I had searched but could not got the proper answer (it could not solve my issue). Thanks in advance. On Jul 16, 8:47 pm, Fred Grott(shareme) fred.gr...@gmail.com wrote: simple google search usually turns up the solution ..it did fro my build error on ubunut On Jul 16, 5:48 am, Ask asifk1...@gmail.com wrote: This is the link on android platform group, http://groups.google.com/group/android-platform/browse_thread/thread/... On Jul 16, 3:46 pm, Ask asifk1...@gmail.com wrote: Hi Mark, I had asked the same question to android platform forum earlier but nobody was responding to that. This is the problem that I am facing when just following the steps showing athttp://source.android.com/download . So even I dont know should I report it as bug ??? Regards, Asif On Jul 16, 3:21 pm, Mark Murphy mmur...@commonsware.com wrote: Asif k wrote: Hi all, I have downloaded the code successfully using repo sync on my linux system and now I want to buld it using make but it fails and telling that frameworks/policies/base/PolicyConfig.mk:22:*** No module defined for the givenPRODUCT_POLICY(android.policy_phone) . stop. So can anyone plz tell me regarding this problem That's probably a better question to ask of the Android open source project: http://source.android.com/discuss -- Mark Murphy (a Commons Guy)http://commonsware.com|http://twitter.com/commonsguy _Android Programming Tutorials_ Version 1.0 In Print!- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ 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: error while building the android code using make
Hi Fred, If you got the answer then can you please send me some useful link. I had searched but could not got the proper answer (it could not solve my issue). Thanks in advance. On Jul 16, 8:47 pm, Fred Grott(shareme) fred.gr...@gmail.com wrote: simple google search usually turns up the solution ..it did fro my build error on ubunut On Jul 16, 5:48 am, Ask asifk1...@gmail.com wrote: This is the link on android platform group, http://groups.google.com/group/android-platform/browse_thread/thread/... On Jul 16, 3:46 pm, Ask asifk1...@gmail.com wrote: Hi Mark, I had asked the same question to android platform forum earlier but nobody was responding to that. This is the problem that I am facing when just following the steps showing athttp://source.android.com/download . So even I dont know should I report it as bug ??? Regards, Asif On Jul 16, 3:21 pm, Mark Murphy mmur...@commonsware.com wrote: Asif k wrote: Hi all, I have downloaded the code successfully using repo sync on my linux system and now I want to buld it using make but it fails and telling that frameworks/policies/base/PolicyConfig.mk:22:*** No module defined for the given PRODUCT_POLICY (android.policy_phone) . stop. So can anyone plz tell me regarding this problem That's probably a better question to ask of the Android open source project: http://source.android.com/discuss -- Mark Murphy (a Commons Guy)http://commonsware.com|http://twitter.com/commonsguy _Android Programming Tutorials_ Version 1.0 In Print!- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ 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: error while building the android code using make
Hi Mark, I had asked the same question to android platform forum earlier but nobody was responding to that. This is the problem that I am facing when just following the steps showing at http://source.android.com/download . So even I dont know should I report it as bug ??? Regards, Asif On Jul 16, 3:21 pm, Mark Murphy mmur...@commonsware.com wrote: Asif k wrote: Hi all, I have downloaded the code successfully using repo sync on my linux system and now I want to buld it using make but it fails and telling that frameworks/policies/base/PolicyConfig.mk:22:*** No module defined for the given PRODUCT_POLICY (android.policy_phone) . stop. So can anyone plz tell me regarding this problem That's probably a better question to ask of the Android open source project: http://source.android.com/discuss -- Mark Murphy (a Commons Guy)http://commonsware.com|http://twitter.com/commonsguy _Android Programming Tutorials_ Version 1.0 In Print! --~--~-~--~~~---~--~~ 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: error while building the android code using make
This is the link on android platform group, http://groups.google.com/group/android-platform/browse_thread/thread/208c760eab587239/4974176be9b4ed03?hl=en#4974176be9b4ed03 On Jul 16, 3:46 pm, Ask asifk1...@gmail.com wrote: Hi Mark, I had asked the same question to android platform forum earlier but nobody was responding to that. This is the problem that I am facing when just following the steps showing athttp://source.android.com/download . So even I dont know should I report it as bug ??? Regards, Asif On Jul 16, 3:21 pm, Mark Murphy mmur...@commonsware.com wrote: Asif k wrote: Hi all, I have downloaded the code successfully using repo sync on my linux system and now I want to buld it using make but it fails and telling that frameworks/policies/base/PolicyConfig.mk:22:*** No module defined for the given PRODUCT_POLICY (android.policy_phone) . stop. So can anyone plz tell me regarding this problem That's probably a better question to ask of the Android open source project: http://source.android.com/discuss -- Mark Murphy (a Commons Guy)http://commonsware.com|http://twitter.com/commonsguy _Android Programming Tutorials_ Version 1.0 In Print!- Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ 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: Sending messages to Subactivity( currently running) from the parentActivity
hello Saurav, Thanks for your reply. Its working fine for user defined subActivity. But If we use intents for ACTION_CALL and dial a number, then if after 30 second I want to end the call programmatically from my parent activity , how to accomplish this using intent broadcast ?? or how can we set timer for the subActivities started by intents Thanks, Asif On Jun 1, 3:04 pm, hina naz hinana...@gmail.com wrote: *visit my site and earn more money** * *http://latesttechnologyinfo.com/* * http://latesttechnologyinfo.com/* * http://latesttechnologyinfo.com/* * http://latesttechnologyinfo.com/* * http://latesttechnologyinfo.com/* * http://latesttechnologyinfo.com/ * * **http://latesttechnologyinfo.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: finishing subactivity after some perticular time
Hi Macro, You are right and I know this but this can be applicable only when you are invoking sub activity that u had created so that u can write ur logic in that. And My problem is, I am invoking the activity for the phone dialer application using startActivity so I dont have control on the code of the phone Dialer application (sub Activity). I want to dial a number using intent and also want to cut the call automatically after 15 seconds. I hope , u got my problem. Thanks, Asif On May 27, 7:45 pm, Marco Nelissen marc...@android.com wrote: Why don't you just have your subactivity post a delayed message to itself and have it call finish() when it gets it? On Tue, May 26, 2009 at 11:49 PM, Ask asifk1...@gmail.com wrote: Is it possible to call finish() for subactivity from the parent activity?? I want to show subactivity for only some perticular time and after that I want it to be automatically finished.. Thanks, Asif On May 26, 7:26 pm, Asif k asifk1...@gmail.com wrote: Hi all, I had opened an image file store in the sdcard using startActivity (intent) API. By doing this, image has opened and will remain open til manually coming back to parent activity by pressing back button. but I want it to be opened only for some perticular time after that it should exit and came back to parent acity. So how to set timer for subactivity?? Please help. Thanks, Asif- Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ 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: finishing subactivity after some perticular time
Is it possible to call finish() for subactivity from the parent activity?? I want to show subactivity for only some perticular time and after that I want it to be automatically finished.. Thanks, Asif On May 26, 7:26 pm, Asif k asifk1...@gmail.com wrote: Hi all, I had opened an image file store in the sdcard using startActivity (intent) API. By doing this, image has opened and will remain open til manually coming back to parent activity by pressing back button. but I want it to be opened only for some perticular time after that it should exit and came back to parent acity. So how to set timer for subactivity?? Please help. Thanks, Asif --~--~-~--~~~---~--~~ 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: DDMS.. file explorer problem
one observation : Whenever I am puling a file from emulator using DDMS fileexplorer / data/app , one process is created in which file explorer window is continuosly refreshed and emulator remains engaged. So I could not run any application on that instance. To run a new application, I have to close this emulator instance and create a new instance again. What can be the problem?? Please help. regards, Asif. On May 26, 10:58 am, Asif k asifk1...@gmail.com wrote: Hi all, In the DDMS, I had used FileExplorer and visited /data/app folder to see the .apk files installed in the emulator. After that I had minimized the data folder and thus stopped that process. But I am observing that this /data/app folder is opening again and again automatically. I dont know what is the reason and how to stop it. Please help.. Thanks, Asif --~--~-~--~~~---~--~~ 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: DexClassLoader caould not invoke method from another application properly
Hi Dianne,
Thanks a lot for your suggestion. Problem has been solved as I had
passed the Context of the application as an argument of invoked method
display().
Regards,
Asif
On May 14, 10:22 am, Dianne Hackborn hack...@android.com wrote:
You seem to be passing in a bad ContextWrapper that somehow has a null base
pointer:
http://android.git.kernel.org/?p=platform/frameworks/base.git;a=blob;...
85 public Toast(Context context) {
86 mContext = context;
87 mTN = new TN(context);
88 mY = context.getResources().getDimensionPixelSize(
89 com.android.internal.R.dimen.toast_y_offset);
90 }
http://android.git.kernel.org/?p=platform/frameworks/base.git;a=blob;...
76 @Override
77 public Resources getResources()
78 {
79 return mBase.getResources();
80 }
On Wed, May 13, 2009 at 9:34 PM, Ask asifk1...@gmail.com wrote:
Fadden,
It throws these exceptions only when I tried to create any UI
component like Toast message or invoking phone dialer inents etc. It
executes nicely when I just tried to print a log message or created
MediaPlayer and playing a song .
So my conclusion is that It throws NullPointerException only when
invoked code has a UI component.
Note: same thing I had tried using the normal desktop java
application using swing and excuted nicely with UI component also. So
Is this a bug in android or some other way to do it.
Thanks,
Asif
On May 14, 3:28 am, fadden fad...@android.com wrote:
On May 13, 8:05 am, Asif k asifk1...@gmail.com wrote:
I had used DexClassLoader to execute the code of other application
dynamically. I am calling method display() of another application from
my application. The display() method will just show the Toast pop up.
[...]
05-13 20:10:22.336: WARN/System.err(773): Caused by:
java.lang.NullPointerException
05-13 20:10:22.466: WARN/System.err(773): at
android.content.ContextWrapper.getResources(ContextWrapper.java:79)
05-13 20:10:22.466: WARN/System.err(773): at
android.widget.Toast.init(Toast.java:88)
05-13 20:10:22.477: WARN/System.err(773): at
android.widget.Toast.makeText(Toast.java:230)
05-13 20:10:22.485: WARN/System.err(773): ... 25 more
Please Help. Am I missing something??
Looks like it was doing something and then hit a null pointer
exception?
--
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
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[android-developers] Re: DexClassLoader caould not invoke method from another application properly
Fadden, It throws these exceptions only when I tried to create any UI component like Toast message or invoking phone dialer inents etc. It executes nicely when I just tried to print a log message or created MediaPlayer and playing a song. So my conclusion is that It throws NullPointerException only when invoked code has a UI component. Note: same thing I had tried using the normal desktop java application using swing and excuted nicely with UI component also. So Is this a bug in android or some other way to do it. Thanks, Asif On May 14, 3:28 am, fadden fad...@android.com wrote: On May 13, 8:05 am, Asif k asifk1...@gmail.com wrote: I had used DexClassLoader to execute the code of other application dynamically. I am calling method display() of another application from my application. The display() method will just show the Toast pop up. [...] 05-13 20:10:22.336: WARN/System.err(773): Caused by: java.lang.NullPointerException 05-13 20:10:22.466: WARN/System.err(773): at android.content.ContextWrapper.getResources(ContextWrapper.java:79) 05-13 20:10:22.466: WARN/System.err(773): at android.widget.Toast.init(Toast.java:88) 05-13 20:10:22.477: WARN/System.err(773): at android.widget.Toast.makeText(Toast.java:230) 05-13 20:10:22.485: WARN/System.err(773): ... 25 more Please Help. Am I missing something?? Looks like it was doing something and then hit a null pointer exception? --~--~-~--~~~---~--~~ 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: Running two applications in the same process
Hello Neil, the same thing I had done. I had given the same android:sharedUserId= hii.hello in the manifest of the both the application as well as same android:process = guide.android in both the manifests. But could not get the expected result. Is the anything more to be done to run both the applications in the same process?? How to check that they are running in the same process? Thanks, Asif On May 12, 5:49 pm, Neil neilb...@gmail.com wrote: To answer the first question, read the manual: http://developer.android.com/guide/topics/manifest/application-elemen... By setting this attribute to a process name that's shared with another application, you can arrange for components of both applications to run in the same process — but only if the two applications also share a user ID and be signed with the same certificate. I didn't understand the how part of your question - just do it. Neil On May 12, 1:50 pm, Asif k asifk1...@gmail.com wrote: Hi all, I want to run two different android applications in the single process to access the resources. For that purpose, I had made following two changes in the manifest file of both the application , I had override two attributes and 1) android:sharedUserId= hii.hello under manifest tag 2) android:process = guide.android under application tag I had made these changes (asign the same values) in the both the applications but could not get expected results. How to check whether both these applications are running in the same process?? Should I sign both the application with the same certificate?? If yes, then can you please tell how?? Thanks, Asif.- Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ 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: Invoking one apk from another
Thanks for your reply.
Actually I want to call one method abc() which resides in the other
application(PhoneDialer.apk) from my application (TestApp.apk) and
that PhoneDialer application resides in the /data/app-private
directory (means this application is not installed in the device) .
This method abc() will invoke a phone dialer application using intents
as per below.
public void abc(){
Intent CallIntent = new
Intent(Intent.ACTION_CALL,Uri.parse(tel:+
25522059));
startActivity(CallIntent);
}
Using the pathloader and reflection APIs I am able to call the
fuction abc() from TestApp activity but I could not able to invoke
this phoneDialer intent. It throws InvokeException and
NullPointerException.
Can you please tell what more should I do like android:export or
binder to accomplish this task.?? please help.
Thanks,
Asif
On May 7, 9:50 pm, Marco Nelissen marc...@android.com wrote:
What do you mean by invoking an apk? An APK file is essentially a zip
file, normally used to package android applications, and contains the code
and resources for any number of activities, services, broadcastreceivers,
etcetera.
Do you want to run an activity from that other apk? Run a service? Trigger a
broadcastreceiver?
In any case, you're going to have to install that apk on the system first,
just like you would install any other application. Once that is done, you
can run the activity/service/etc the same way you would normally do, e.g. by
calling startActivity, bindService, sendBroadcast, etc.
On Thu, May 7, 2009 at 7:37 AM, Asif k asifk1...@gmail.com wrote:
Hi all,
I want to invoke musicplayer.apk(this .apk I have already created
and working fine) application from my current application
programmatically. Can anyone please suggest me how to export
musicplayer.apk and the steps to accomplish this task?
Please help. Thanks in advance.- Hide quoted text -
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[android-developers] Re: Playing a .mp3 file using View Intent
Hi MrChaz,
Thanks for your help. I changed it and its working now.
regards,
Asif
On May 5, 3:55 pm, MrChaz mrchazmob...@googlemail.com wrote:
it's audio/mp3 not /audio/mp3
On May 5, 11:27 am, Asif k asifk1...@gmail.com wrote:
Hi all,
I want to play a mp3 file which is stored in the /sdcard/ using
ACTION_VIEW intent and I used following code to accomplish that, but I
got ActivityNotFound Exception..
Intent intent = new Intent(android.content.Intent.ACTION_VIEW);
Uri data = Uri.parse(file:///sdcard/abc_xyz.mp3);
intent.setDataAndType(data,/audio/mp3);
try {
startActivity(intent);
} catch (ActivityNotFoundException e) {
e.printStackTrace();
}
But I got the following exception,
05-05 15:44:40.563: WARN/System.err(5253):
android.content.ActivityNotFoundException: No Activity found to handle
Intent { action=android.intent.action.VIEW data=file:///sdcard/Main
Agar Kahoon.mp3 type=/audio/mp3 }
05-05 15:44:40.582: WARN/System.err(5253): at
android.app.Instrumentation.checkStartActivityResult
(Instrumentation.java:1471)
05-05 15:44:40.582: WARN/System.err(5253): at
android.app.Instrumentation.execStartActivity(Instrumentation.java:
1441)
05-05 15:44:40.593: WARN/System.err(5253): at
android.app.Activity.startActivityForResult(Activity.java:2526)
05-05 15:44:40.602: WARN/System.err(5253): at
android.app.Activity.startActivity(Activity.java:2570)
05-05 15:44:40.602: WARN/System.err(5253): at
test.mp3file.MusicTest.onCreate(MusicTest.java:25)
05-05 15:44:40.612: WARN/System.err(5253): at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:
1122)
05-05 15:44:40.612: WARN/System.err(5253): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
2104)
05-05 15:44:40.612: WARN/System.err(5253): at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:
2157)
05-05 15:44:40.612: WARN/System.err(5253): at
android.app.ActivityThread.access$1800(ActivityThread.java:112)
05-05 15:44:40.612: WARN/System.err(5253): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1581)
05-05 15:44:40.612: WARN/System.err(5253): at
android.os.Handler.dispatchMessage(Handler.java:88)
05-05 15:44:40.612: WARN/System.err(5253): at
android.os.Looper.loop(Looper.java:123)
05-05 15:44:40.612: WARN/System.err(5253): at
android.app.ActivityThread.main(ActivityThread.java:3739)
05-05 15:44:40.612: WARN/System.err(5253): at
java.lang.reflect.Method.invokeNative(Native Method)
05-05 15:44:40.612: WARN/System.err(5253): at
java.lang.reflect.Method.invoke(Method.java:515)
05-05 15:44:40.612: WARN/System.err(5253): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run
(ZygoteInit.java:739)
05-05 15:44:40.612: WARN/System.err(5253): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:497)
05-05 15:44:40.612: WARN/System.err(5253): at
dalvik.system.NativeStart.main(Native Method)
In fact I used this approach to play file, because I want the
internal music application with Gui buttons on the display during
playback. Is it possible to call the internal music application when
we play with the MediaPlayer object ??
Please help. Thanks in advance.
Asif- Hide quoted text -
- Show quoted text -
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[android-developers] Re: java.lang.reflect.InvocationTargetException during calling a function of another application at runtime
Hi Dianne, Please respond. On Apr 21, 6:27 pm, Ask asifk1...@gmail.com wrote: executing code from the SD card is a security hole for your app, no matter how short a time you have the code there. now I am successful in writing file in the /data/app-private/ dir rather than /sdcard. So one problem is solved. but still I cant invoke intents in the method which is called dynamically using PathClassLoader. If android does not support dynamic loading of classes from another application then my question to google engineers is that why You have provided the APIs like PathClassLoader , DexClassLoader and DexFile?? why the variables (which are defined outside the invoked method but inside the loaded class) throwing null pointer exception and why the problem occurs with intents( which are used in the invoked method) gives null pointer exception at startActivity(intent); line. Is there anyway to solve this problem. My aim is to send the .apk files dynamically from the desktop using socket communication and execute one method in this .apk at runtime . After executing this methos I will delete this .apk file. Thanks, Asif On Apr 20, 1:13 pm, Dianne Hackborn hack...@android.com wrote: On Sun, Apr 19, 2009 at 3:37 AM, Ask asifk1...@gmail.com wrote: I am writing the file in the /sdcard using the application programmatically and the same file I am deleting when its work has been done. Same thing I had tried in the /data/app-private file but I could not write the file prgrammatically.. Is there any way to write in the private dir programmatically using changing permissions?? I am having a lot of trouble visualizing what you are trying to do, but if you are getting in to situations where you are trying to write to an app directory with a different UID, you really need to step back and rethink what you are doing. Also, executing code from the SD card is a security hole for your app, no matter how short a time you have the code there. -- 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.- Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ 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: java.lang.reflect.InvocationTargetException during calling a function of another application at runtime
executing code from the SD card is a security hole for your app, no matter how short a time you have the code there. now I am successful in writing file in the /data/app-private/ dir rather than /sdcard. So one problem is solved. but still I cant invoke intents in the method which is called dynamically using PathClassLoader. If android does not support dynamic loading of classes from another application then my question to google engineers is that why You have provided the APIs like PathClassLoader , DexClassLoader and DexFile?? why the variables (which are defined outside the invoked method but inside the loaded class) throwing null pointer exception and why the problem occurs with intents( which are used in the invoked method) gives null pointer exception at startActivity(intent); line. Is there anyway to solve this problem. My aim is to send the .apk files dynamically from the desktop using socket communication and execute one method in this .apk at runtime . After executing this methos I will delete this .apk file. Thanks, Asif On Apr 20, 1:13 pm, Dianne Hackborn hack...@android.com wrote: On Sun, Apr 19, 2009 at 3:37 AM, Ask asifk1...@gmail.com wrote: I am writing the file in the /sdcard using the application programmatically and the same file I am deleting when its work has been done. Same thing I had tried in the /data/app-private file but I could not write the file prgrammatically.. Is there any way to write in the private dir programmatically using changing permissions?? I am having a lot of trouble visualizing what you are trying to do, but if you are getting in to situations where you are trying to write to an app directory with a different UID, you really need to step back and rethink what you are doing. Also, executing code from the SD card is a security hole for your app, no matter how short a time you have the code there. -- 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: ConditionVariable Usage
Please help on this. Thanks On Apr 21, 5:45 pm, Asif k asifk1...@gmail.com wrote: Hi, I'm trying to use a ConditionVariable to control the execution sequence of two threads. I can create a ConditionVariable in one thread and block on it. But I would like to be able to access it from another Thread and unblock it from that thread.. ? Blocked Thread i am planning to keep as GUI thread and it should update the messages which are sent by b/g thread on the screen during its block state and will be unblocked by b/g thread in the end by calling open(); method. Can you please the proper way to accomplish this?? Thanks, Asif --~--~-~--~~~---~--~~ 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: java.lang.reflect.InvocationTargetException during calling a function of another application at runtime
Can DexClassLoader solve this above problem?? I have not downloaded early look sdk yet.. Will The application which is running on sdk 1.0 run on 1.5 without an problem?? On Apr 19, 3:37 pm, Ask asifk1...@gmail.com wrote: fadden, but rather why are you getting the NullPointerException. I am getting null pointer exception due to the variables which are defined outside the Method which is to be invoked but inside the activity. If I will define the same variable inside the method.. application works nicely. If I am invoking intent in the method then it is throwing same exception at startAcitivity(intent). Can DexclassLoader fix all this problems?? Presumably you are running as root, and/or have changed the permissions on /data/dalvik-cache. I could not understand this.Can you please clearify.. Yes I had changed the permissions of the /data/dalvik-cache I am writing the file in the /sdcard using the application programmatically and the same file I am deleting when its work has been done. Same thing I had tried in the /data/app-private file but I could not write the file prgrammatically.. Is there any way to write in the private dir programmatically using changing permissions?? On Apr 18, 12:45 am, fadden fad...@android.com wrote: On Apr 17, 6:24 am, Ask asifk1...@gmail.com wrote: The application will be residing in the /sdcard/ and I am loading it dynamically using PathClassLoader API. and using Method.invoke() function I am invoking the method residing in that class. Presumably you are running as root, and/or have changed the permissions on /data/dalvik-cache. If you have the 1.5 early look SDK, you can start using DexClassLoader, which allows you to choose where the output of dexopt will go. You should probably use the app's private storage area on /data rather than /sdcard if that's feasible.- Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ 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: java.lang.reflect.InvocationTargetException during calling a function of another application at runtime
fadden, but rather why are you getting the NullPointerException. I am getting null pointer exception due to the variables which are defined outside the Method which is to be invoked but inside the activity. If I will define the same variable inside the method.. application works nicely. If I am invoking intent in the method then it is throwing same exception at startAcitivity(intent). Can DexclassLoader fix all this problems?? Presumably you are running as root, and/or have changed the permissions on /data/dalvik-cache. I could not understand this.Can you please clearify.. Yes I had changed the permissions of the /data/dalvik-cache I am writing the file in the /sdcard using the application programmatically and the same file I am deleting when its work has been done. Same thing I had tried in the /data/app-private file but I could not write the file prgrammatically.. Is there any way to write in the private dir programmatically using changing permissions?? On Apr 18, 12:45 am, fadden fad...@android.com wrote: On Apr 17, 6:24 am, Ask asifk1...@gmail.com wrote: The application will be residing in the /sdcard/ and I am loading it dynamically using PathClassLoader API. and using Method.invoke() function I am invoking the method residing in that class. Presumably you are running as root, and/or have changed the permissions on /data/dalvik-cache. If you have the 1.5 early look SDK, you can start using DexClassLoader, which allows you to choose where the output of dexopt will go. You should probably use the app's private storage area on /data rather than /sdcard if that's feasible. --~--~-~--~~~---~--~~ 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: java.lang.reflect.InvocationTargetException during calling a function of another application at runtime
Mark, The application will be residing in the /sdcard/ and I am loading it dynamically using PathClassLoader API. and using Method.invoke() function I am invoking the method residing in that class. Yes it may violate the model but I need it in my application If not, are both applications executing as the same user ID and in the same process? both are different application and I think both have different user IDs. Is there any way to run both application as the same userID and in the same process.??? Regards, Asif On Apr 17, 6:04 pm, Mark Murphy mmur...@commonsware.com wrote: I am calling a method of another .apk file dynamically at runtime in my application. I can execute it successfully if method does not contain any variable which is defined outside of that method. Are you using remote services? If not, are both applications executing as the same user ID and in the same process? If not, how are you doing this, since it seems to violate the Android security model? -- Mark Murphy (a Commons Guy)http://commonsware.com _The Busy Coder's Guide to Android Development_ Version 2.0 Available! --~--~-~--~~~---~--~~ 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: java.lang.reflect.InvocationTargetException during calling a function of another application at runtime
means that exception is coming due to different user IDs?? why cant that method use any variable of the activity?? Regarding Loading and ulloading of .apk in the /sdcard, I am making sure to put it in the card only when I am executing my application and after competion of my application I am deleting it from /sdcard programmatically. Please give any idea to get rid of that exception... On Apr 17, 6:44 pm, Mark Murphy mmur...@commonsware.com wrote: The application will be residing in the /sdcard/ and I am loading it dynamically using PathClassLoader API. and using Method.invoke() function I am invoking the method residing in that class. Do not do that unless you have some means of ensuring that the code you are loading off that SD card is your code, and not some piece of malware. both are different application and I think both have different user IDs. Is there any way to run both application as the same userID and in the same process.??? http://developer.android.com/guide/topics/manifest/application-elemen... http://developer.android.com/guide/topics/manifest/manifest-element.h... -- Mark Murphy (a Commons Guy)http://commonsware.com _The Busy Coder's Guide to Android Development_ Version 2.0 Available! --~--~-~--~~~---~--~~ 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: C\C++ support for application level
Please give some suggestions.. On Apr 15, 5:35 pm, Asif k asifk1...@gmail.com wrote: Hi, I want to ask to google engineers that whether future sdk releases will provide any C\C++ support for application developement?? If no.. then Can you please tell me the disadvantage of these languages?? As per my knowledge and experience, runtime environment is not needed to execute C\C++ application. So why cant we directly run any application which is written in C\C++?? Is there any way to bypass DVM to execute a code?? Core android librarys are C\C++ only... Regardz, Asif --~--~-~--~~~---~--~~ 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: setCursorVisible in the TextView
yess, I got it using setSelection() method On Apr 9, 2:53 pm, Ask asifk1...@gmail.com wrote: Hi Jef, Thanks 4 ur reply. Its working fine 4 EditText.. But here there is no API to set cursor position like EditText.setcursorPosition(), I am updating EditText at different stages of application execution programatically using EditText.append(); But cursor position is remaining at the first line only. I want cursor to be visible at the end.. Is there anyway to accomplish it?? On Apr 9, 12:11 pm, Jeffrey Sharkey jeffrey.shar...@gmail.com wrote: This might be a difference between how TextView and EditText behave. If you're trying to let them edit text, use an EditText. :) j On Apr 8, 11:42 pm, Asif k asifk1...@gmail.com wrote: Hi all, In the android reference site, it is written in the serCursorVisible section that cursor is visible by default and you can give its value as either true or false to change the its visibility on the GUI screen. But in my case , cursor is remaining invisible irrespective of setting the visibility true or false using android:cursorVisible = true in the layout/main.xml. Should I do something more to make cursor visible on the GUI screen or its a bug in android??? Please respond... regardz, Asif- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ 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: setCursorVisible in the TextView
Hi Jef, Thanks 4 ur reply. Its working fine 4 EditText.. But here there is no API to set cursor position like EditText.setcursorPosition(), I am updating EditText at different stages of application execution programatically using EditText.append(); But cursor position is remaining at the first line only. I want cursor to be visible at the end.. Is there anyway to accomplish it?? On Apr 9, 12:11 pm, Jeffrey Sharkey jeffrey.shar...@gmail.com wrote: This might be a difference between how TextView and EditText behave. If you're trying to let them edit text, use an EditText. :) j On Apr 8, 11:42 pm, Asif k asifk1...@gmail.com wrote: Hi all, In the android reference site, it is written in the serCursorVisible section that cursor is visible by default and you can give its value as either true or false to change the its visibility on the GUI screen. But in my case , cursor is remaining invisible irrespective of setting the visibility true or false using android:cursorVisible = true in the layout/main.xml. Should I do something more to make cursor visible on the GUI screen or its a bug in android??? Please respond... regardz, Asif- Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ 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: Help...Exception in the Background Thread :Can't create handler inside thread that has not called Looper.prepare()
Hi all,
Thanks 4 ur reply.
Actually I want to call some methods of one Activity
(test.check.Test1.java) from another activity (my current activity) at
runtime in the separate Thread. In the main GUI Thread this works
fine.
This Test1.java activity resides in the test.check.apk file which is
stored in the /sdcard. This is simply activity class with only one
function xyz() (which I want to call) and returns a String Hellooo
Man as follows
package test.check;
import android.app.Activity;
import android.os.Bundle;
public class Test1 extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
public String xyz(){
return Hellooo Man;
}
}.
But during the execution of this function from another activity
(another .apk) at runtime in the separate Thread causes exception at
this line
Object o = c.newInstance();
which I came to know during debugging , otherwise class is Loaded
nicely and also loaded method xyz() without any problem.
But to execute that method I need to create Obect instance and then
Method.invoke(o);
I hope u got it now.
Dianne:: Exception race is as follows,
04-08 11:57:08.802: ERROR/AndroidRuntime(240): Uncaught handler:
thread Thread-8 exiting due to uncaught exception
04-08 11:57:08.812: ERROR/AndroidRuntime(240):
java.lang.RuntimeException: Can't create handler inside thread that
has not called Looper.prepare()
04-08 11:57:08.812: ERROR/AndroidRuntime(240): at
android.os.Handler.init(Handler.java:111)
04-08 11:57:08.812: ERROR/AndroidRuntime(240): at
android.app.Activity.init(Activity.java:660)
04-08 11:57:08.812: ERROR/AndroidRuntime(240): at
test.check.Test1.init(Test1.java:6)
04-08 11:57:08.812: ERROR/AndroidRuntime(240): at
java.lang.Class.newInstance(Native Method)
04-08 11:57:08.812: ERROR/AndroidRuntime(240): at
android.giude.SocketFTP.SocketFTP.readTheFile(SocketFTP.java:128)
04-08 11:57:08.812: ERROR/AndroidRuntime(240): at
android.giude.SocketFTP.SocketFTP$1.run(SocketFTP.java:50)
Mariano : I have not used Looper.prepare(),
Is it required?? If yes then where and how to define
handler for that?
On Apr 7, 10:20 pm, Dianne Hackborn hack...@android.com wrote:
Also you need to look at the exception stack trace. It will show you who is
trying to create a Handler.
On Tue, Apr 7, 2009 at 9:44 AM, Streets Of Boston
flyingdutc...@gmail.comwrote:
But do you want a Looper and Handler in your thread 't'?
Why do you load it in another thread?
Are you planning in dispatching and handling messages in this thread
't'?
If not, don't start adding all this stuff just to make the run-time
happy.
Put a breakpoint in your default constructor of your test.check.Test1
class and see which line of code needs a Handler or Looper.
What are you trying to accomplish? It looks like you're trying to load
and construct a class from an APK (check.apk). Are you initializing an
Activity from this APK called 'Test1'? If so, I understand why it may
need a looper/handler. But if you're loading an Activity (Test1)
within another Activity (the one trying to load check.apk), you may
get into a heap of other trouble. But i'm not an expert on this at
all. Google engineers will know much more about this.
On Apr 7, 10:55 am, Ask asifk1...@gmail.com wrote:
Hi Streets,
I dont think this is the case.
Same code executes nicely If I call that method in the onCreate()
method (i.e. main thread itself)
problem occurs in the Object creation if I will call this method
readTheFile() in the Thread.
Can you give any info. regarding how I can define Looper and Handler
in my code to execute it without any error.???
On Apr 7, 7:00 pm, Streets Of Boston flyingdutc...@gmail.com wrote:
It could be that during the construction of class test.check.Test1, a
Handler or something similar (i.e. something needing the main-thread's
message-queue) is constructed. Look at your test.check.Test1
implementation and see if this is the case.
If this is the case, you will get an exception if the constructor of
test.check.Test1 is executed on any other thread than the main-thread
with the message queue.
You would have gotten the same exception if you would have called 'new
test.check.Test1()'.
On Apr 7, 9:17 am, Ask asifk1...@gmail.com wrote:
Is there any handler needed for that?? Any Idea???
On Apr 7, 3:58 pm, Ask asifk1...@gmail.com wrote:
Hi,
I am using Reflection APIs in the background thread to call a
method
dynamically from another application but I am getting the
Exception:
java.lang.RuntimeException: Can't create handler inside thread
that
has not called Looper.prepare()
at a line : Object o = c.newInstance();
my code in the Thread
[android-developers] Re: Help...Exception in the Background Thread :Can't create handler inside thread that has not called Looper.prepare()
yess right, in short i was trying to instantiate a view comp.
Still not clear logic for using Looper.
might be Google engineers can answer this.
On Apr 8, 6:14 pm, Mariano Kamp mariano.k...@gmail.com wrote:
Glad it works.
Well, what you were trying to instantiate was a View Component, weren't you?
I don't think it matters that you were using reflection for it.Why a view
component needs the looper before it is attached to an active Window, I
don't know.
On Wed, Apr 8, 2009 at 2:31 PM, Ask asifk1...@gmail.com wrote:
It works nice after I had added only one line : Looper.prepare(); in
the begining of the
public void run(); method.
But still I could not understand,
How Looper.prepare(); provides a handler to Object o = c.newInstance
(); Line???
In short, got the solution but wants some clearification.
Regards,
Asif
On Apr 8, 11:44 am, Ask asifk1...@gmail.com wrote:
Hi all,
Thanks 4 ur reply.
Actually I want to call some methods of one Activity
(test.check.Test1.java) from another activity (my current activity) at
runtime in the separate Thread. In the main GUI Thread this works
fine.
This Test1.java activity resides in the test.check.apk file which is
stored in the /sdcard. This is simply activity class with only one
function xyz() (which I want to call) and returns a String Hellooo
Man as follows
package test.check;
import android.app.Activity;
import android.os.Bundle;
public class Test1 extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
public String xyz(){
return Hellooo Man;
}
}.
But during the execution of this function from another activity
(another .apk) at runtime in the separate Thread causes exception at
this line
Object o = c.newInstance();
which I came to know during debugging , otherwise class is Loaded
nicely and also loaded method xyz() without any problem.
But to execute that method I need to create Obect instance and then
Method.invoke(o);
I hope u got it now.
Dianne:: Exception race is as follows,
04-08 11:57:08.802: ERROR/AndroidRuntime(240): Uncaught handler:
thread Thread-8 exiting due to uncaught exception
04-08 11:57:08.812: ERROR/AndroidRuntime(240):
java.lang.RuntimeException: Can't create handler inside thread that
has not called Looper.prepare()
04-08 11:57:08.812: ERROR/AndroidRuntime(240): at
android.os.Handler.init(Handler.java:111)
04-08 11:57:08.812: ERROR/AndroidRuntime(240): at
android.app.Activity.init(Activity.java:660)
04-08 11:57:08.812: ERROR/AndroidRuntime(240): at
test.check.Test1.init(Test1.java:6)
04-08 11:57:08.812: ERROR/AndroidRuntime(240): at
java.lang.Class.newInstance(Native Method)
04-08 11:57:08.812: ERROR/AndroidRuntime(240): at
android.giude.SocketFTP.SocketFTP.readTheFile(SocketFTP.java:128)
04-08 11:57:08.812: ERROR/AndroidRuntime(240): at
android.giude.SocketFTP.SocketFTP$1.run(SocketFTP.java:50)
Mariano : I have not used Looper.prepare(),
Is it required?? If yes then where and how to define
handler for that?
On Apr 7, 10:20 pm, Dianne Hackborn hack...@android.com wrote:
Also you need to look at the exception stack trace. It will show you
who is
trying to create a Handler.
On Tue, Apr 7, 2009 at 9:44 AM, Streets Of Boston
flyingdutc...@gmail.comwrote:
But do you want a Looper and Handler in your thread 't'?
Why do you load it in another thread?
Are you planning in dispatching and handling messages in this thread
't'?
If not, don't start adding all this stuff just to make the run-time
happy.
Put a breakpoint in your default constructor of your test.check.Test1
class and see which line of code needs a Handler or Looper.
What are you trying to accomplish? It looks like you're trying to
load
and construct a class from an APK (check.apk). Are you initializing
an
Activity from this APK called 'Test1'? If so, I understand why it may
need a looper/handler. But if you're loading an Activity (Test1)
within another Activity (the one trying to load check.apk), you may
get into a heap of other trouble. But i'm not an expert on this at
all. Google engineers will know much more about this.
On Apr 7, 10:55 am, Ask asifk1...@gmail.com wrote:
Hi Streets,
I dont think this is the case.
Same code executes nicely If I call that method in the onCreate()
method (i.e. main thread itself)
problem occurs in the Object creation if I will call this method
readTheFile() in the Thread.
Can you give any info. regarding how I can define Looper and
Handler
in my code to execute
[android-developers] Re: Server/Client in different machines
Can you send the exception you are getting or some code snippets, it can be some io exception... On Apr 7, 4:58 pm, Lillian Brandão lbrolive...@gmail.com wrote: I've already done at the server machines: redir add tcp:7000:7000. -- Lillian Brandão On Tue, Apr 7, 2009 at 8:47 AM, Ask asifk1...@gmail.com wrote: Have you done port forwarding at server machine?? Any message which is coming to the server should be redirected towards the emulator port : 7000 On Apr 7, 4:35 pm, Lillian Brandão lbrolive...@gmail.com wrote: Hi all, I have an application client/server and I want to install this application in differente machines. The server is located in IP_SERVER, listening port 7000. I want to start a cliente in another machine with IP_Y and connect to the server on the different machine. I've started the server and I've created the socket like this: ... new ServerSocket(7000); I've started the client and I've created the socket like this: ...new Socket(SERVER_IP, 7000) But the client did not connect to the server. I've already set the INTERNET_PERMISSION. Any suggestions how to do it? Anybody else have already done a client/server application that communicate between differente machines? Thanks in advance, Lillian Brandão.- Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ 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] Help...Exception in the Background Thread :Can't create handler inside thread that has not called Looper.prepare()
Hi,
I am using Reflection APIs in the background thread to call a method
dynamically from another application but I am getting the Exception:
java.lang.RuntimeException: Can't create handler inside thread that
has not called Looper.prepare()
at a line : Object o = c.newInstance();
my code in the Thread is as follows,
onCreate
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
hh_text = (TextView)findViewById(R.id.server_start);
Thread t = new Thread()
{
public void run()
{
readTheFile();
}
};
t.start();
}
public void readTheFile() {
try {
PathClassLoader loader = new PathClassLoader( /sdcard/
test.check.apk, ClassLoader.getSystemClassLoader());
Class c = null;
c = loader.loadClass(test.check.Test1);
Log.i(See, Test Class Found );
Method method = c.getMethod(xyz, null);
Object o = c.newInstance(); // This line throws exception
String s = (String) method.invoke(o);
Log.i(See,Got method: + s);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
} }
Please help.. If you know the issue.
On Apr 6, 7:14 pm, Ask asifk1...@gmail.com wrote:
Thanx Mark for your quick reply. I will try it out and get back
On Apr 6, 6:49 pm, Mark Murphy mmur...@commonsware.com wrote:
Asif k wrote:
But in my case, I am getting all 3 messages at a time after
activity execution completed.
That is probably because you are doing long-running work on the UI thread.
Is there any API available, using which
I can show the status during the execution also.
Anything long-running should be in a background thread, in the activity
or wrapped in a service. Then, use Handler or runOnUiThread() or
something so the background thread can have the UI thread update your
TextView.
--
Mark Murphy (a Commons
Guy)http://commonsware.com|http://twitter.com/commonsguy
Android App Developer Training:http://commonsware.com/training.html- Hide
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[android-developers] Re: Server/Client in different machines
Have you done port forwarding at server machine?? Any message which is coming to the server should be redirected towards the emulator port : 7000 On Apr 7, 4:35 pm, Lillian Brandão lbrolive...@gmail.com wrote: Hi all, I have an application client/server and I want to install this application in differente machines. The server is located in IP_SERVER, listening port 7000. I want to start a cliente in another machine with IP_Y and connect to the server on the different machine. I've started the server and I've created the socket like this: ... new ServerSocket(7000); I've started the client and I've created the socket like this: ...new Socket(SERVER_IP, 7000) But the client did not connect to the server. I've already set the INTERNET_PERMISSION. Any suggestions how to do it? Anybody else have already done a client/server application that communicate between differente machines? Thanks in advance, Lillian Brandão. --~--~-~--~~~---~--~~ 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: Help...Exception in the Background Thread :Can't create handler inside thread that has not called Looper.prepare()
Is there any handler needed for that?? Any Idea???
On Apr 7, 3:58 pm, Ask asifk1...@gmail.com wrote:
Hi,
I am using Reflection APIs in the background thread to call a method
dynamically from another application but I am getting the Exception:
java.lang.RuntimeException: Can't create handler inside thread that
has not called Looper.prepare()
at a line : Object o = c.newInstance();
my code in the Thread is as follows,
onCreate
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
hh_text = (TextView)findViewById(R.id.server_start);
Thread t = new Thread()
{
public void run()
{
readTheFile();
}
};
t.start();
}
public void readTheFile() {
try {
PathClassLoader loader = new PathClassLoader( /sdcard/
test.check.apk, ClassLoader.getSystemClassLoader());
Class c = null;
c = loader.loadClass(test.check.Test1);
Log.i(See, Test Class Found );
Method method = c.getMethod(xyz, null);
Object o = c.newInstance(); // This line throws exception
String s = (String) method.invoke(o);
Log.i(See,Got method: + s);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
} }
Please help.. If you know the issue.
On Apr 6, 7:14 pm, Ask asifk1...@gmail.com wrote:
Thanx Mark for your quick reply. I will try it out and get back
On Apr 6, 6:49 pm, Mark Murphy mmur...@commonsware.com wrote:
Asif k wrote:
But in my case, I am getting all 3 messages at a time after
activity execution completed.
That is probably because you are doing long-running work on the UI thread.
Is there any API available, using which
I can show the status during the execution also.
Anything long-running should be in a background thread, in the activity
or wrapped in a service. Then, use Handler or runOnUiThread() or
something so the background thread can have the UI thread update your
TextView.
--
Mark Murphy (a Commons
Guy)http://commonsware.com|http://twitter.com/commonsguy
Android App Developer Training:http://commonsware.com/training.html-Hide
quoted text -
- Show quoted text -- Hide quoted text -
- Show quoted text -
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[android-developers] Re: Help...Exception in the Background Thread :Can't create handler inside thread that has not called Looper.prepare()
Hi Streets,
I dont think this is the case.
Same code executes nicely If I call that method in the onCreate()
method (i.e. main thread itself)
problem occurs in the Object creation if I will call this method
readTheFile() in the Thread.
Can you give any info. regarding how I can define Looper and Handler
in my code to execute it without any error.???
On Apr 7, 7:00 pm, Streets Of Boston flyingdutc...@gmail.com wrote:
It could be that during the construction of class test.check.Test1, a
Handler or something similar (i.e. something needing the main-thread's
message-queue) is constructed. Look at your test.check.Test1
implementation and see if this is the case.
If this is the case, you will get an exception if the constructor of
test.check.Test1 is executed on any other thread than the main-thread
with the message queue.
You would have gotten the same exception if you would have called 'new
test.check.Test1()'.
On Apr 7, 9:17 am, Ask asifk1...@gmail.com wrote:
Is there any handler needed for that?? Any Idea???
On Apr 7, 3:58 pm, Ask asifk1...@gmail.com wrote:
Hi,
I am using Reflection APIs in the background thread to call a method
dynamically from another application but I am getting the Exception:
java.lang.RuntimeException: Can't create handler inside thread that
has not called Looper.prepare()
at a line : Object o = c.newInstance();
my code in the Thread is as follows,
onCreate
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
hh_text = (TextView)findViewById(R.id.server_start);
Thread t = new Thread()
{
public void run()
{
readTheFile();
}
};
t.start();
}
public void readTheFile() {
try {
PathClassLoader loader = new PathClassLoader( /sdcard/
test.check.apk, ClassLoader.getSystemClassLoader());
Class c = null;
c = loader.loadClass(test.check.Test1);
Log.i(See, Test Class Found );
Method method = c.getMethod(xyz, null);
Object o = c.newInstance(); // This line throws exception
String s = (String) method.invoke(o);
Log.i(See,Got method: + s);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
} }
Please help.. If you know the issue.
On Apr 6, 7:14 pm, Ask asifk1...@gmail.com wrote:
Thanx Mark for your quick reply. I will try it out and get back
On Apr 6, 6:49 pm, Mark Murphy mmur...@commonsware.com wrote:
Asif k wrote:
But in my case, I am getting all 3 messages at a time after
activity execution completed.
That is probably because you are doing long-running work on the UI
thread.
Is there any API available, using which
I can show the status during the execution also.
Anything long-running should be in a background thread, in the
activity
or wrapped in a service. Then, use Handler or runOnUiThread() or
something so the background thread can have the UI thread update your
TextView.
--
Mark Murphy (a Commons
Guy)http://commonsware.com|http://twitter.com/commonsguy
Android App Developer
Training:http://commonsware.com/training.html-Hidequotedtext -
- Show quoted text -- Hide quoted text -
- Show quoted text -- Hide quoted text -
- Show quoted text -- Hide quoted text -
- Show quoted text -
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[android-developers] Re: Displaying real time information during the execution of an activity
Thanx Mark for your quick reply. I will try it out and get back On Apr 6, 6:49 pm, Mark Murphy mmur...@commonsware.com wrote: Asif k wrote: But in my case, I am getting all 3 messages at a time after activity execution completed. That is probably because you are doing long-running work on the UI thread. Is there any API available, using which I can show the status during the execution also. Anything long-running should be in a background thread, in the activity or wrapped in a service. Then, use Handler or runOnUiThread() or something so the background thread can have the UI thread update your TextView. -- Mark Murphy (a Commons Guy)http://commonsware.com|http://twitter.com/commonsguy Android App Developer Training:http://commonsware.com/training.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: DexClassLoader Feature in the Cupcake
Please respond.. Whether DexFile class can solve this purpose? On Mar 25, 11:52 am, Asif k asifk1...@gmail.com wrote: Hi all, Can anyone please provide some information regarding the reflection API DexclassLoader, which will be includeed in cupcake release?? In the latest development of the cupcake, whether this feature is added or still to be done?? I f already included then any reference which will explain about how to download that cupcake source from the repo, compile that source and add in the current sdk. I am using windows plateform and running the applications on the emulator. --~--~-~--~~~---~--~~ 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: Launching adb commands programtically from android application
Mark, Then is there any way to copy one file xyz.abc.apk from the /sdcard to /data/app/ folder using the application. Because I want to call it at the runtime using PathClassLoader but for that .apk file must be in the /data/app folder. Regardz, Asif On Mar 20, 5:00 pm, Mark Murphy mmur...@commonsware.com wrote: Is it possible to launch adb commands programatically from any android application? No. The adb program runs on your development machine, not a device. -- Mark Murphy (a Commons Guy)http://commonsware.com _The Busy Coder's Guide to Android Development_ Version 2.0 Available! --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
