deep dive into google glass live cards

public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {        case R.id.action_stop:          // Stop the Service which will also unpublish the LiveCard          stopService(new Intent(this, LiveCardService.class));          return true;	            default:          return super.onOptionsItemSelected(item);    }} 

surfaceCreated(SurfaceHolder holder)surfaceChanged(SurfaceHolder holder)surfaceDestroyed(SurfaceHolder holder) 

    public class MenuActivity extends Activity {

        @Override
        public void onAttachedToWindow() {
            super.onAttachedToWindow();
            openOptionsMenu();
        }

        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            MenuInflater inflater = getMenuInflater();
            inflater.inflate(R.menu.stopwatch, menu);
            return true;
        }

        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
            // Handle item selection.
            switch (item.getItemId()) {
                case R.id.stop:
                    stopService(new Intent(this, StopwatchService.class));
                    return true;
                default:
                    return super.onOptionsItemSelected(item);
            }
        }

        @Override
        public void onOptionsMenuClosed(Menu menu) {
            // Nothing else to do, closing the activity.
            finish();
        }
    }