class SecondScreen extends StatelessWidget { @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text('Remove Back Button'), //hide back button automaticallyImplyLeading: false, ), body: Center( child: Container(), ), ); } } // if you want to hide b...
ElevatedButton( onPressed: () {}, child: const Text("普通按钮") ) 1.2.2 TextButton TextButton 即文本按钮,默认背景透明并不带阴影。按下后,会有背景色 TextButton( child: Text("文本按钮"), onPressed: () {}, ) 1.2.3 OutlinedButton OutlineButton 默认有一个边框,不带阴影且背景透明。按下后,...
child: Material(// background 是 scaffold 所有子组件的底色color: widget.backgroundColor ?? themeData.scaffoldBackgroundColor, child: AnimatedBuilder(animation: _floatingActionButtonMoveController, builder: (BuildContext context, Widget? child) {// Scaffold 的 childrenreturnCustomMultiChildLayout(// 布局...
TextButton( child: Text('确定'), onPressed: () { //点击确认跳转DataPage()页面, 跳转过后删除之前所有页面, Navigator.of(context).pushAndRemoveUntil( new MaterialPageRoute( builder: (context) => new HomePage()), (route) => false); okToast("打小看你就有出息!"); }, ), ], ); }); ...
Please remove the tooltip from the BackButton and CloseButton which are automatically handled/displayed. Or provide an option to hide or modify it (global or in app bar as properties). The tooltip appears e.g. on long press (Android). flutter/packages/flutter/lib/src/material/back_button.da...
pushAndRemoveUntil是面向普通路由, pushNamedAndRemoveUntil面向命名路由; 【push与replace区别】 push推送时替换,replace直接替换; 页面跳转的三个基本API —— of()、push()、pop() 【push】ContentPage跳转到PageOne: 【pop】PageOne跳回ContentPage: 两个页面间简单的页面传输 ...
}@overridevoiddispose() {// Unregister your State class as a binding observerWidgetsBinding.instance.removeObserver(this);super.dispose(); }// Override the didChangeAppLifecycleState method and//Listen to the app lifecycle state changes@overridevoiddidChangeAppLifecycleState(AppLifecycleState state) {...
底部导航栏使用bottomNavigationBar搭配Positioned组件实现页面模块切换。通过getx全局状态来联动控制底部导航栏背景颜色。 代码语言:actionscript 复制 return Scaffold( backgroundColor: Colors.grey[50], body: pageList[pageCurrent], // 底部导航栏 bottomNavigationBar: Theme( // Flutter去掉BottomNavigationBar底部导航...
( appBar: AppBar( title: Text("Dialog Page"), ), body: PopupMenuButtonDemo(), ), ); } } class PopupMenuButtonDemo extends StatelessWidget { const PopupMenuButtonDemo({Key? key}) : super(key: key); @override Widget build(BuildContext context) { return Center( child: PopupMenuButton<...
ElevatedButton( onPressed: () { b++; setState(() {}); }, child: Text('b : $b'), ), ], ), ), ); } 也可以用getxGetBuilder这种状态组件实现局部刷新。 定义GetBuilder,设置id名称 @override Widget build(BuildContext context) { ...