WillPopScope小部件是有状态小部件还是无状态小部件？

Question

我正在尝试在无状态小部件内使用 WillPopScope 。

Answer 1

易于在Flutter源代码中查找

https://github.com/flutter/flutter/blob/d927c9331005f81157fa39dff7b5dab415ad330b/packages/flutter/lib/src/widgets/will_pop_scope.dart#L16-L43

  

WillPopScope类扩展了StatefulWidget {

显然是有状态的小部件。