flutter_to_airplay library Null safety

Classes

AirPlayRoutePickerView
This widget returns an AirplayRoutePicker button from native code, it can be added as a button or as an app bar icon, just like any widget.
FlutterAVPlayerView
This widget returns a UIView from swift with an AVPlayer inside, it can be added as it is, or inside a Container to limit and control its width and height.
FlutterToAirplay
For now this class provides on method to check iOS version.