The intention is to have a Navigator navigate to top level routes and those routes themselves potentially having Navigator s, so putting ... ... <看更多>

Wrap that page's Scaffold in a WillPopScope widget ... For example, if the Android settings app were made with Flutter, you'd want to be ... ... <看更多>

This article assumes you are familiar with navigation in Flutter. See the Navigation basics tutorial, as well as the Navigator, ... ... <看更多>