How to check if dark mode is enabled on iOS/Android using Flutter?

There are two ways:

1. NO context required. Can be used in initState for example:

    var brightness = SchedulerBinding.instance.window.platformBrightness;
    bool isDarkMode = brightness == Brightness.dark;
   

   or (as suggested by Moore’s Lawyer)

    var brightness = SchedulerBinding.instance.platformDispatcher.platformBrightness;
    bool isDarkMode = brightness == Brightness.dark;
   

2. context is required:

    var brightness = MediaQuery.of(context).platformBrightness;
    bool isDarkMode = brightness == Brightness.dark;