onPlatformBrightnessChanged property Null safety

  1. @override
VoidCallback? onPlatformBrightnessChanged
override

A callback that is invoked whenever platformBrightness changes value.

The framework invokes this callback in the same zone in which the callback was set.

See also:

Implementation

@override
ui.VoidCallback? get onPlatformBrightnessChanged => _platformDispatcher.onPlatformBrightnessChanged;
  1. @override
void onPlatformBrightnessChanged=(VoidCallback? callback)
override

Implementation

@override
set onPlatformBrightnessChanged(ui.VoidCallback? callback) {
  _platformDispatcher.onPlatformBrightnessChanged = callback;
}