Greg Donald - Android Deallocate Bitmaps

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Android Deallocate Bitmaps

Call this in your onDestroy() on your outer-most layout to free up memory:

public void unbindDrawables( final View v )
{
  if( v.getBackground() != null )
  {
    v.getBackground().setCallback( null );
  }

  if( v instanceof ViewGroup && !( v instanceof AdapterView ) )
  {
    for( int i = 0; i < ( (ViewGroup) v ).getChildCount(); i++ )
    {
      unbindDrawables( ( (ViewGroup) v ).getChildAt( i ) );
    }

    ( (ViewGroup) v ).removeAllViews();
  }
}

Helps with memory leaks in Android, especially if you have an app that switches activity screens a lot.

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