@Override
public void onSurfaceDestroyed(SurfaceHolder holder) {
super.onSurfaceDestroyed(holder);
boolean retry = true;
painting.stopPainting();
while (retry) {
try {
painting.join();
retry = false;
} catch (InterruptedException e) {
}
}
}
@Override
public void onDestroy() {
super.onDestroy();
painting.stopPainting();
}