didChangeAppLifecycleState method
Implementation
void didChangeAppLifecycleState(AppLifecycleState state) {
System.toast("Life cycle change");
if (controller == null || !controller!.value.isInitialized) return;
if (state == AppLifecycleState.inactive) {
_disposeOfCamera();
} else if (state == AppLifecycleState.resumed) {
reconfigureCameras();
}
}