跟踪位图内存分配

Question

我正在开发一款使用大量位图分配的游戏。我也是自己回收位图。我想跟踪分配给位图的内存。有没有办法在Android中跟踪它们？这是一个例子：

public class MainActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    Log.i("MainActivity", "" + Debug.getNativeHeapAllocatedSize());
    Bitmap bitmap = loadBitmap(this.getResources().getDrawable(R.drawable.bg1), Bitmap.Config.RGB_565);
    Log.i("MainActivity", "" + Debug.getNativeHeapAllocatedSize());
    bitmap.recycle();
    bitmap = null;
    System.gc();
    Log.i("MainActivity", "" + Debug.getNativeHeapAllocatedSize());  

}

public static Bitmap loadBitmap(Drawable drawable, Config bitmapConfig) {
    int width = drawable.getIntrinsicWidth();
    int height = drawable.getIntrinsicHeight();
    Bitmap mBitmap = Bitmap.createBitmap(width, height, bitmapConfig);
    Canvas canvas = new Canvas(mBitmap);
    drawable.setBounds(0, 0, width, height);
    drawable.draw(canvas);
    return mBitmap;

  }
}