}// Override the didChangeAppLifecycleState method and//Listen to the app lifecycle state changes@overridevoiddidChangeAppLifecycleState(AppLifecycleState state) {super.didChangeAppLifecycleState(state);switch(state) {caseAppLifecycleState.detached: _onDetached();caseAppLifecycleState.resumed: _onResumed...
'State Machine 1',onStateChange:_onStateChange,);artboard.addController(controller!);_skin=controller.findInput<bool>('Boolean 1')asSMIBool;}void_onStateChange(StringstateMachineName,StringstateName){print("stateMachineName$stateMachineNamestateName$stateName");}void_swapSkin(){_...
1. DataTable参数 字段类型 columns（表头）List<DataColumn> rows（内容行）List<DataRow> sortColumnIn...
I'm using the following handler to handle auth state change, Widget handleCurrentScreen() { return StreamBuilder<FirebaseUser>( stream: FirebaseAuth.instance.onAuthStateChanged, builder: (BuildContext context, snapshot) { if (snapshot.connectionState == ConnectionState.waiting) { return Scaffold(...
class _MyHomePageState extends State<MyHomePage> { @override void didChangeDependencies() { super.didChangeDependencies(); } @override Widget build(BuildContext context) { //2.在Scaffold的层级进行事件的监听。创建`NotificationListener`,并在`onNotification`就可以得到我们的事件了。
CubitextendsCubit<int>{CounterCubit():super(0);voidincrement()=>emit(state+1);voiddecrement()=>emit(state-1);@overridevoidonChange(Change<int>change){super.onChange(change);print(change);}@overridevoidonError(Object error,StackTrace stackTrace){print('$error, $stackTrace');super.onError(error...
三、State完整的生命周期 1. 初始化 构造函数(constructor) initState: 只会调用一次 didChangeDependencies:Called when a dependency of this [State] object changes.(会执行多次) Widgetbuild 2. 状态变化 热重载:reassemble为了开发调试而提供,在Release模式下永远不会被调用 ...
(Icons.chevron_right), /// onTap: () { /// print('点击事件:点击了 ListTile === title为:$data'); /// }, /// onLongPress: () { /// print('长按事件:长按了 ListTile === title为:$data'); /// }, /// selected: true, /// ), /// new CheckboxListTile( /// value: ...
('pause'),onDetach:()=>_handleTransition('detach'),onRestart:()=>_handleTransition('restart'),// This fires for each state change. Callbacks above fire only for// specific state transitions.onStateChange:_handleStateChange,);}void_handleTransition(Stringname){print("### main$name");} 其...
onSaved: (value) { // 表单保存时触发的回调 _task = value; }, ), Padding( padding: const EdgeInsets.symmetric(vertical: 16.0), child: ElevatedButton( // 表单提交按钮 onPressed: () { if (_formKey.currentState.validate()) { // 表单校验通过 ...