切換tab後保留tab的狀態,避免initState
方法重複調用
class _HomePageState extends State<HomePage> with AutomaticKeepAliveClientMixin { @override bool get wantKeepAlive =>true; }
切換tab後保留tab的狀態,避免initState
方法重複調用
class _HomePageState extends State<HomePage> with AutomaticKeepAliveClientMixin { @override bool get wantKeepAlive =>true; }