Flutter change screen orientations

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Screen orientation is one of best part in app. Some games always be landscape and some of business based app always be portrait orientation. 


For Portrait orientation:

WidgetsFlutterBinding.ensureInitialized(); 

  await SystemChrome.setPreferredOrientations(

    [DeviceOrientation.portraitDown, DeviceOrientation.portraitUp]);


For Landscape orientation:

WidgetsFlutterBinding.ensureInitialized(); 

  await SystemChrome.setPreferredOrientations(

    [DeviceOrientation.landscapeLeft, DeviceOrientation.landscapeRight]);


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