Animation Drawable causing OutOfMemoryError on second run in Android

Question

I am currently developing a game and I\'m trying to use one AnimationDrawable to show one animation in my Main Menu. When I run the game once, it works perfectly. But if i t

Answer 1

You need to free memory used by bitmaps, when you're exiting this screen. Unfortunately, for earlier versions of Android (afaik this was "fixed" since 3.0, but I can be wrong) memory for bitmaps is allocated through native code and, what is sad, memory should be freed explicitly.

So, I suppose you to try this approach:

1. Move code for AnimationDrawable to onResume() method.

2. Add following code for releasing memory to onPause().

   ad.stop();
   for (int i = 0; i < ad.getNumberOfFrames(); ++i){
       Drawable frame = ad.getFrame(i);
       if (frame instanceof BitmapDrawable) {
           ((BitmapDrawable)frame).getBitmap().recycle();
       }
       frame.setCallback(null);
   }
   ad.setCallback(null);
   

I hope it'll help you.

Answer 2

So, I manage to solve my problem with this approach:

Created one AsyncTask for drawing

private class DrawRabbit extends AsyncTask<Void, Integer, Void> {    
     private int fps = 24;
     private int frame = 10014;
     private String drawableName; 
     @Override
       protected Void doInBackground(Void... params) {
         while (running){
           try {  
            if (frame == 10014)
              Thread.sleep(1000);
            else 
              Thread.sleep(fps);
          if (frame < 10160) { 
            frame++;
            publishProgress(frame);
          }
          else 
            running = false;

        } catch (InterruptedException e) { 
          e.printStackTrace();
        }
         }           
         return null;
       }

       protected void onProgressUpdate(Integer... frame) {
         drawableName = "rm" + frame[0];
         int res_id = getResources().getIdentifier(drawableName, "drawable", getPackageName());        
           rabbitFrame.setBackgroundResource(res_id);
       }   
   }

and start it onWindowsFocusChanged

public void onWindowFocusChanged(boolean hasFocus) {    
    super.onWindowFocusChanged(hasFocus);         
    if (hasFocus)
      new DrawRabbit().execute((Void)null) ;
    else 
      running = false;
    Log.d(TAG,"onFocusChanged");
  }

Hope it helps someone!

Answer 3

add these two lines in your android manifest file android:hardwareAccelerated="true" and android:largeHeap="true"

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.xxx.yyy" >
    <application
        android:allowBackup="false"
        android:fullBackupContent="false"
        android:hardwareAccelerated="true"
        android:largeHeap="true">
</application>

Hope that will help you.

Answer 4

just add "android:largeHeap="true"" in application tag android manifest! :)

Answer 5

You can try by reducing the size if images. My case it worked.

int[] frames = {R.drawable.frame1, R.drawable.frame2, R.drawable.frame3};
AnimationDrawable drawable = new AnimationDrawable();
    for (int fr : frames) {
        Bitmap sample = BitmapFactory.decodeResource(mActivity.getResources(), fr);
        sample = Bitmap.createScaledBitmap(sample, sample.getWidth()/4, sample.getHeight()/4, false);
        drawable.addFrame(new BitmapDrawable(mActivity.getResources(), sample), 30);
    }