didChangeAppLifecycleState method
Called when the system puts the app in the background or returns the app to the foreground.
An example of implementing this method is provided in the class-level documentation for the WidgetsBindingObserver class.
This method exposes notifications from SystemChannels.lifecycle.
See also:
- AppLifecycleListener, an alternative API for responding to application lifecycle changes.
Implementation
@override
void didChangeAppLifecycleState(AppLifecycleState state) {
if (!widget.configuration.handleCameraInAppBackgroundAutomatically) {
return;
}
switch (state) {
case AppLifecycleState.resumed:
setState(() {
appInBackground = false;
});
break;
case AppLifecycleState.hidden:
case AppLifecycleState.inactive:
case AppLifecycleState.paused:
case AppLifecycleState.detached:
setState(() {
appInBackground = true;
});
_disposeCameraChannel();
break;
}
}