onPlatformBrightnessChanged property
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:
- WidgetsBindingObserver, for a mechanism at the widgets layer to observe when this callback is invoked.
Implementation
VoidCallback? get onPlatformBrightnessChanged => _onPlatformBrightnessChanged;Implementation
set onPlatformBrightnessChanged(VoidCallback? callback) {
_onPlatformBrightnessChanged = callback;
_onPlatformBrightnessChangedZone = Zone.current;
}