Context leak

[tobrun]

The code responsible for above in MapView.java:

    getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
      @Override
      public void onGlobalLayout() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
          getViewTreeObserver().removeOnGlobalLayoutListener(this);
        } else {
          getViewTreeObserver().removeGlobalOnLayoutListener(this);
        }
        initialiseDrawingSurface(options);
      }
    });

This issue with this is that if the hosting activity/viewhiearchy is destroyed before it's measured it will never remove the listener and thus leaking the view/context.