Widgetbuild(BuildContext context){returnnewScaffold(appBar:newAppBar(title:newText('First Screen'),),body:newCenter(child:newRaisedButton(child:newText('Launch new screen'),onPressed:(){// Navigate to second screen when tapped!},),),);}}classSecondScreenextendsStatelessWidget{@override Widgetbuil...
class FirstRoute extends StatelessWidget { @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text('First Route'), ), body: Center( child: RaisedButton( child: Text('Open route'), onPressed: () { Navigator.push( context, MaterialPageRoute(builder: (conte...
_startNewPageAndeGetReturnData(BuildContext context)async{User xiaoming=newUser("小明",25);finalresult=awaitNavigator.push(context,MaterialPageRoute(builder:(context)=>TestScreen2(user:xiaoming)));print("这地方打印的是新页面传递回来的信息:"+[result.name](http://result.name)+" "+result.age.toS...
通过remove进行返回 // */ // void _pushSaved(){ // //在路由管理器 Navigator中push一个新的路由 // //这个路由是一个页面路由,通过builder构建这个页面 // Navigator.of(context).push(MaterialPageRoute<void>(builder: (context){ // //dart语法,每一个被标星的单词都会生成一个ListTile组件 // fi...
MaterialPageRoute(builder: (context) => MyRoute()), ); }, child: Text('Navigate to Route'), ), ), ), ), ); } 异步编程与数据请求 在Flutter 中,异步编程是通过Future和async/await实现的。以下是一个简单的异步示例,展示如何从服务器请求数据。
for (final pageRoute in newPageRouteHistory) { if (pageRoute.isWaitingForEnteringDecision) { pageRoute.markForAdd(); } results.add(pageRoute); } for (final exitingPageRoute in locationToExitingPageRoute.values) { if (exitingPageRoute.isWaitingForExitingDecision) { ...
Steps to reproduce Open a modal bottom sheet using showModalBottomSheet from a page press any button on the bottom sheet to navigate to a new page try to come back using device back button... app is directly closing in my case instead ...
MaterialPageRoute是Material组件库的一个Widget,它可以针对不同平台,实现与平台页面切换动画风格一致的路由切换动画: 对于Android,当打开新页面时,新的页面会从屏幕底部滑动到屏幕顶部;当关闭页面时,当前页面会从屏幕顶部滑动到屏幕底部后消失,同时上一个页面会显示到屏幕上。
[**Route**](https://master-api.flutter.dev/flutter/widgets/Route-class.html "**Route**")—被Navigator管理的当前屏幕,Route的实现比如MaterialPageRoute. 在Navigator 2.0 之前,页面使用【命名路由】或【匿名路由】进栈和出栈。接下来的部分是对这两种方法做一个简要的回顾。
Steps to Reproduce Pages on Navigator stack rebuild when a new page is pushed onto the stack. Suppose the pages were numbered numerically, in the order they are pushed onto the stack i.e. page 1 -> page 2 -> page 3. When we push Page 3, ...