isOtherSharingWhiteboard method
Determine whether another user is sharing the whiteboard.
Return true means another user is sharing the whiteboard.
Implementation
@override
Future<bool> isOtherSharingWhiteboard() async {
return await methodChannel
.invokeMethod<bool>('isOtherSharingWhiteboard')
.then<bool>((bool? value) => value ?? false);
}