@Override
        public void run() {
            // Delayed display of UI elements
            ActionBar actionBar = getSupportActionBar();
            if (actionBar != null) {
                actionBar.show();
            }
            mControlsView.setVisibility(View.VISIBLE);
        }
Some older devices needs a small delay between UI widget updates
and a change of the status and navigation bar.
app/src/main/java/home/smart/fly/animations/ui/activity/FullscreenActivity.java