Flutter: How to set and lock screen orientation on-demand

Question

On one of my flutter pages, I need the screen to set to landscape mode and lock it so it can\'t rotate into portrait mode, but only on the one page. So need a way to enable

Answer 1

Sometimes it could not work due to null info about orientation. You can use it simply like this:

import services.dart


void main() {
    SystemChrome.setPreferredOrientations(
    [DeviceOrientation.portraitUp]
     )
        .then((_) {
          runApp(new MyApp());
        });
    }

// wait for settings screen orientation after initiating app and -> then lock orientation