Flutter screen becomes horizontal then portraitup when changing pages-CodePudding

Flutter screen becomes horizontal then portraitup when changing pages. How can i fix that?

CodePudding user response：

By adding the following code to your flutter main method you will always have a landscaped screen orientation.

 WidgetsFlutterBinding.ensureInitialized();
      SystemChrome.setPreferredOrientations([DeviceOrientation.landscapeLeft]).then((_){
       runApp(MyApp()); //replace this with your App Widget
      });

You can change to portrait or every other orientation by changing the DeviceOrientation's field (e.g. to DeviceOrientation. portraitUp)

CodePudding user response：

You can manage the orientation on initstate and in dispose like this

@override
void initState(){
  super.initState();
  SystemChrome.setPreferredOrientations([
      DeviceOrientation.landscapeRight,
      DeviceOrientation.landscapeLeft,
  ]);
}

The above code with set the screen in landscape and in dispose will reset to auto rotate

@override
dispose(){
  SystemChrome.setPreferredOrientations([
    DeviceOrientation.landscapeRight,
    DeviceOrientation.landscapeLeft,
    DeviceOrientation.portraitUp,
    DeviceOrientation.portraitDown,
  ]);
  super.dispose();
}