Called From Wrong Thread Exception

Question

I am getting an exception here when I try to bring another view to the front. It happens in the last method of my BoardView class where it says if(lives == 0). Can anybody see w

Answer 1

You must update the View using the UI thread (not the SurfaceView thread). If you would like to make some View change from within the SurfaceView thread you must create a new RunOnUiThread which performs the View updating.

// From within SurfaceView thread
new Thread() {
    public void run() {
        activity.runOnUiThread(new Runnable() {     
            @Override
            public void run() {
                // Update view here
            }
        });
    }
}.start();

Answer 2

You need to run the bring to front on the right thread. Try this:

final View v = ((BoardView) getParent()).findViewById(1);
v.post(new Runnable(){ public void run(){ v.bringToFront(); } });

See if that works.