颤动的屏幕更改回调 [英] Flutter screen change callback

问题描述

当屏幕更改时，我希望获得回调，因此我可以停止在该特定屏幕上运行的重复请求.仅在使用Navigator.pop时才调用"dispose"，而在调用Navigator.push时不调用.有没有一种方法可以检测到屏幕已更改并且目前没有显示?

I want to get a callback when the screen is changed, so I can stop my recurring request that runs on that specific screen. "dispose" is only called when Navigator.pop is used, but not when Navigator.push is called. Is there a way to detect that the screen is changed and not being shown at the moment?

推荐答案

在MaterialApp或WidgetsApp上注册RouteObserver，并使有状态的小部件成为RouteAware.此处的示例代码: RouteObserver

Register a RouteObserver on your MaterialApp or WidgetsApp and make your stateful widget a RouteAware. Sample code here: RouteObserver

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