checkCurrentTheme method

Implementation

void checkCurrentTheme() {
  // Android <10, Linux မှာ အမြဲ light ဖြစ်နိုင်တယ်
  final newBrightness =
      WidgetsBinding.instance.platformDispatcher.platformBrightness;
  if (newBrightness != currentBrightness) {
    currentBrightness = newBrightness;
    _controller.add(currentBrightness);
  }
}