Android UIModeManager and Application Configuration

Question

I need my app to automatically switch between night/day modes. According to the documentation I can use UiModeManager like this:

UiModeManager uiModeManager = (UiModeManager) getSystemService(UI_MODE_SERVICE);        
uiModeManager.setNightMode(UiModeManager.MODE_NIGHT_YES); 

However, the application don't use alternative resources with "night" qualifier. I didn't notice that the application actually changed the configuration. How can I force the app to use night-qualified resources?

Answer 1

Car or Desk mode must also be active in order for that mode to be effective.