FlutterSmartfaceMobilePlatform constructor
FlutterSmartfaceMobilePlatform()
Factory constructor to return the singleton instance of the class. If the instance doesn't exist, it creates a new one.
Implementation
factory FlutterSmartfaceMobilePlatform() {
_instance ??= FlutterSmartfaceMobilePlatform._internal();
return _instance!;
}