Android :: OnServiceConnected Never Called After BindService Method

Mar 21, 2010

a service started by a broadcast receiver starts an activity. I want to make it possible for this activity to communicate back to the service. I have chosen to use AIDL to make it possible. Everything seems works good except for bindService() method called in onCreate() of the activity. bindService(), in fact, throws a null pointer exception because onServiceConnected() is never called while onBind() method of the service is. Anyway bindService() returns true.The service is obviously active because it starts the activity.I know that calling an activity from a service could sound strange, but unfortunately this is the only way to have speech recognition in a service.

Android :: onServiceConnected never called after bindService method


Android :: Service Binding - ServiceConnection.onServiceConnected Not Being Called

Sep 14, 2009

As a point of example for my problem, I wrote a single Activity which binds to a service and then accesses a property to display. The problem is that my TestServiceConnection.onServiceConnected method is never called, and I don't know why.

Here is the code:

CODE:......................

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Android :: Android 1.5 - Asynctask DoInBackground Not Called / Method Called

Oct 26, 2010

I am running into an issue with the way my asynctasks are executed. Here's the problem code:

firstTask = new background().new FirstTask(context);
if(firstTask.execute().get().toString().equals("1"))
secondTask = new background().new SecondTask(context);

What I'm doing here is creating a new asynctask object, assigning it to firstTask and then executing it. I then want to fire off a separate asynctask when the first one is done and making sure it returns a success value (1 in this case). This works perfectly on Android 2.0 and up. However, I am testing with Android 1.5 and problems start popping up. The code above will run the first asynctask but doInBackground() is never called despite onPreExecute() being called. If I am to execute the first task without the get() method, doInBackground() is called and everything works as expected. Except now I do not have a way to determine if the first task completed successfully so that I can tell the second task to execute. Is it safe to assume that this is a bug with asynctask on Android 1.5? Especially since the API says that the get method has been implemented since API 3. Is there any way to fix this? Or another way to determine that the first task has finished?

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Android :: Method Called After Release

Sep 22, 2010

I'm getting this error ( in the end of this post) which I guess I understand it's because I'm calling something after releasing it.. but I can't find a wy to work it around.I've tried all combinations.. I've tried: mCamera.setPreviewCallback(null); This class, where the surfaceview is implemented can be accessed by 2 different classes one that doesnt implement surfaceview and other that does the error just shows me when I go from the activity that uses the camera to the activity that also uses camera.I don't know what else to do.

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Android :: Is OnUpgrade Method Ever Called?

Jul 2, 2010

Is the onUpgrade method of SQLiteOpenHelper ever called? If so, when is it called and by what? Or if it is not called by developers, then why is it there? What should be done in the method I have seen examples where it drops all the tables, but then a comment says that dropping all the tables is NOT what you should do.

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Android :: GetView Method Used And Where Is It Getting Called?

Sep 1, 2010

I am new to Android development and have been following the tutorials available on the Android website. I am currently on the section of tutorials for Views, specifically the one for Grid Views: Hello, Grid View Tutorial.I am having trouble understanding how views are made through an adapter. I understand that you must override the getView() method in your adapter class and in this method is where you define how your Views are set up. What I don't understand is where does getView() actually get called? Perhaps I've got the wrong kind of mentality here, but in the code below (the Grid View tutorial) I don't see any calls to getView() (or any other things used in the adapter class such as getCount()).

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Android :: OnRestart Method Not Called On Restart

Apr 15, 2010

I'm writing a Tetris application on Android for my bachelor thesis at the University of Hasselt. Currently I have a working Tetris base game, but it just keeps on ticking when the activity gets in the background. I'm trying to fix this by overwriting the onStop()and onRestart()methods.when I press my home button on my device I will go to my home screen and onStop() is called. Because the gamemode is now "PAUSE", the game wil not tick anymore. But now, when I longpress my home button and select my tetris activity again, the activity pops up, but it isn't ticking! This is because the onRestart() is never called when I return to play my application.What is the reason that this method is never called? Am I understanding the activity lifecycle wrong?

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Android :: Stopping Method To Be Called Twice If Already Running

Mar 3, 2010

I'm trying to prevent my application to call the same method twice in the event of a double-click, or if the user presses different buttons quickly, almost at the same time.I have clickable Views, acting as buttons, that call the same method but passing different parameters.Inside this method I'm creating a new Thread, because it queries a web server for the result.The problem is that upon two quick clicks, the method is fired twice, two threads are created, and consequently two new activities are created. That makes my app crash.But this only seems to work on slower phones like the G1, I tried on Nexus and before it set blocked = true, the second request has was granted. So is there any way I can block the method being called if it's already running, or if the thread has started so it wont create a new one.

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Android :: How To Find What Hook / Method Is Being Called In Framework?

Mar 5, 2010

I was wondering how should I proceed to debug while working with frameworks. Like specifically how can i tell which method is being called when a particular event happens.

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Android :: Calling An InputMethod Method When A BroadcastReceiver Gets Called

Feb 19, 2010

I added a BroadCastReceiver to my application.I want to call my inputMethod's method but I can't find a way to access it's instance.but I couldn't find a way to get the the InputMethod instance from the InputMethodManager.Is doing a singleton the only way to access it?

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Android :: Extended SurfaceView's OnDraw Method Never Called

Apr 21, 2010

I'm trying to modify the SurfaceView I use for doing a camera preview in order to display an overlaying square. However, the onDraw method of the extended SurfaceView is never called.

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Android :: Which Method Is Called When Press Back Key On Phone?

Nov 24, 2010

i have an app that haves a lot of activitys, all created with ONACTIVITYRESULT.which method is called when i press back key? i need to know it because i have to override/implement code on it

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Android :: Is It Normal For OnCreate Method To Be Called Multiple Times?

Aug 27, 2010

I have some code in the onCreate method an Activity and noticed that it is being called three times. Is it normal behaviour?

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Android :: Voice Recognition Activity Called In OnCreate Method / Causes App To Load Slowly

Oct 1, 2010

In my android app I call the voice recognition in my onCreate method of my startup activity. I have made it a preference to start up with the voice control or not. However, the app takes about 5-7 seconds to load when voice recognition is on. When it is off, the app starts almost instantly. Below is sample code, I have added Free_Form, max_results 1, and a custom prompt to mine.Why would calling the normal android speech recognition take sooo long to load in my OnCreate method?

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Android :: Camera Without Preview / Need To Use Ipc And Bindservice To Call

Mar 5, 2010

I am writing an android 1.5 application which starts just after boot-up. This is a service and should take a picture without preview. This app will log the light density in some areas whatever. I was able to take a picture but the picture was black.

After googling like crazy, i came across a bug thread about it. If you don't generate a preview, the image will be black since android camera needs preview to setup exposure and focus. I've created a surfaceview and listener but the onSurfaceCreated event never gets fired.

I guess the reason is, the surface is not being created visually. I've also seen some examples of calling the camera statically with MediaStore.CAPTURE_OR_SOMETHING which takes a picture and saves in the desired folder with two lines of code but it doesn't take a picture too.

Do i need to use ipc and bindservice to call this function or do you have any suggestion to achieve my goal (taking a picture without preview) and if so, would you give me a small piece of code as example?

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Android :: Why Doesn't Context.bindService() Call OnStartCommand()?

Oct 22, 2010

Here is what the SDK doc says about the bindService():

"Clients can also use Context.bindService() to obtain a persistent connection to a service. This likewise creates the service if it is not already running (calling onCreate() while doing so), but does not call onStartCommand()."

This means that the Service creation lifecyle events are different depending on whether or not the service is created out of startService() or bindService(). Why such difference?

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Android :: How To Stop Service Started By BindService() With Bind_auto_create Option

Nov 18, 2010

I start service by using:

private ServiceConnection _serviceConnection = new ServiceConnection() {...}
bindService(new Intent(this, MainService.class), _serviceConnection, Context.BIND_AUTO_CREATE);

I want to 'restart' the service. (Let's not argue why I want to do that)
I do that by:

unbindService(_serviceConnection);
// Do some initialization on service
bindService(new Intent(this, MainService.class), _serviceConnection, Context.BIND_AUTO_CREATE);

I noticed service doesn't die(onDestroy doesn't run) until I call next bindService();
So some static initialization I did on service got cleared by onDestroy() implementation.

Question: How do you make sure unbindService() will stop service (run onDestory()),
so that I could do initialization after and re-run bindService()?

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Android :: Android BindService - Remote Services

Dec 2, 2009

As a newbie to Android development, I'm trying to do the basics and build a media player. It works fine in one activity, but I'm now moving the MediaPlayer stuff to a remote service so it can carry on after the activity is destroy. I've moved the necessary code to the service, left comments in the activity where I'll need to call service methods, implemented my AIDL and it all builds with no errors (Eclipse).

However, I'm totally stumped as to how to call IPC methods. Are there any simple and minimal examples with no fat - just the bare essentials?

As I'm using IPC methods, I don't need to use onStart() at all - right? (I intend to use LoadFile(File path), and then have public void considerDeath() { if (!isPlaying()) { MyService.stopSelf(); } } method called from activity.onDestroy )

/guide/developing/tools/aidl.html has multiple binders, but when I use the mSecondaryConnection portion, I get "MyService.Stub cannot be resolved"

I've tried http://www.anddev.org/remote%5Fservice%5Ftutorial-t8127.html which seems to confuse things by overloading methods.

I can't find anything by Mark Murphy either on the subject.

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Android :: Method OnBackPressed() Of Type FirstGroup Must Override Superclass Method

Sep 7, 2010

I'm trying to override the onBackPressed() method of the ActivityGroup class:

public class MyClass extends ActivityGroup {

@Override
public void onBackPressed() {
// do something
return;
}

but I'm getting the error The method onBackPressed() of type MyClass must override a superclass method. I'm relatively new to Java, I've seen here that people do it and it works for them Why I'm getting this error? I'm writing an app for android 1.5, could the problem be here?

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Android :: Show Method Definition - Eclipse Recognizes Warning On Method

Nov 22, 2010

In Eclipse, when I mouse hover over a built-in method, it displays a method definition including stuff like what the method does, input objects, return objects etc. If I have a yellow line (warning) under the method I'm trying to use, I can't get the mouse-over to show the definition. If I try hitting F3, I get a "The Jar of this class file belongs to container "Android 1.6" How do I show the definition of the method I am using when there is a warning?

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Android :: Method.getAnnotation( ) Or Method.isAnnotationPresent( ) Not Working

May 12, 2010

I am trying to use annotation - method.getAnnotation( ) or method.isAnnotationPresent( ) and it is not working. I am using eclipse emulator for 2.1 OS version with JDK 1.6. Following is information about what I did..................

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Android :: Created A Method In Another Class But I Can't Use It In OnClick Method From Main Class

Nov 1, 2010

I created a method called insertTable in a class called Table but i can't use it in my onClick method in the main class :

CODE:.......

I want to do a income.insertTable in the onClick method but eclipse say that i need to create a local variable.

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Android :: Call OnDraw In Another Method - Then - Refresh - That Call In Another Method

Jun 6, 2010

Basically I'm calling the onDraw method like so...

code:...................

You see I'm drawing it on top of a Camera view and the information being drawn is subject to change. I have a listener setup which will update the variables being drawn at the appropriate time but I now want to "refresh" this draw in that listener.

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Android :: Android - Could Not Find Method XXX - Referenced From Method YYY

Feb 27, 2010

I have two android projects, ProjA requires ProjB (in Eclipse Properties > Java Build Path > Projects > Add > ProjB). Every thing compiles ok in Eclipse, but when I run ProjA I get an error: Could not find method XXX, referenced from method YYY. Where XXX - is the method from ProjB. How can I fix the settings?

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Android :: Which Is Android / Java Corresponding Method To C#/C++ Method GetTickCount()?

Aug 28, 2010

the title say it all. I wanna know a corresponding method in Android/Java that is like the GetTickCount method in C#/C++?

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Android :: Static Method In Java Accept Only Final Or Non Final Variables Within Its Method - But Not Static

Sep 15, 2010

Why should a static method in java accept only final or non final variables within its method, but not static?

For example I have the following method:

CODE:.................

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Android :: How To Called Mp3 Download?

Jun 4, 2010

I was reading through app suggestions and someone mentioned an app called mp3 Download that basically functions like limewire, letting you search and download mp3's to your phone. Does anyone know anything about this app and whether it is good or not? Or have suggestions for a similiar app? It had mixed reviews at appbrain and when I searched here it came up with a bunch of other threads.

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Android :: An App Called Listen?

Sep 22, 2010

I was told by a few friends that the iphone has an app that allows you to hold your phone up to a song that you dont know and it tells you the name.Does android have anything like that?

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Android :: OnKeyDown Not Always Called In App

Oct 20, 2009

I've created a simple android game, based on the Lunar Lander sample, and I'm having a problem with handling key events.When the activity starts, the only keys that onKeyDown or onKeyUp get called for are the dpad up/down/left/right keys.Neither the menu, back, or dpad_center keys trigger onKey methods. However, once I've pushed one of the dpad up/down/left/right buttons, pressing the menu, back, or dpad_center keys do trigger these methods. I'm not getting any errors, or any indication of what's going wrong.It's possible that the focus is set wrong - the activity is started from a button on screen, so it could be in touchscreen mode. If that's the case, shouldn't touching the back button get me in to the right focus mode so that I can catch the event?I'm using the emulator from SDK-1.5r3.I have not been able to try this on a real phone yet.

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Android :: Whats That App Called?

Aug 27, 2010

I saw it on the market but forgot to install it. It displays the number of remaining minutes, texts and data left for the month if your on a monthly mobile phone plan.

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