createState method
for future custom support
Implementation
// EasyTransition.custom(
// {required this.customTransition,
// required this.child,
// required this.pageToPush,
// this.isDisabled= false,
//
//}) {
// _navigationType = NavigationType.Push;
// _type = 2;
// }
@override
_EasyTransitionState createState() => _EasyTransitionState();