weyyan

代码如 ```dart PageViewLifecycleWrapper( // Outer PageView child: PageView( controller: pageController, physics: NeverScrollableScrollPhysics(), children: [ FixedChildPageLifecycleWrapper( index: 0, wantKeepAlive: true,child: AWidget()), ``` ```dart class AWdiget extends StatefulWidget { createState() => _State();...