DefaultTabController( length: 2, child: Scaffold( appBar: AppBar( centerTitle: true, title: const Text("AppBarDemoPage"), leading: IconButton( icon: const Icon(Icons.menu), onPressed: () { print(1244); }, ), actions: [ IconButton( onPressed: () {}, icon: const Icon(Icons.search...
;returnScaffold(appBar:AppBar(title:Text(widget.title),),body:Center(child:ListView(children:[Center(// 加载 Flutter 内置图标child:Icon(Icons.threed_rotation,size:200,),),Stack(children:[Center(// 网络加载时显示本地的资源图片child:FadeInImage.assetNetwork(// Placeholderplaceholder:"images/...
登录后复制AppBar(title: const Text('AppBar 组件'),leading: BackButton(),elevation: 0,backgroundColor: Colors.white,centerTitle: true,iconTheme: IconThemeData(color: Colors.black),titleTextStyle: TextStyle(color: Colors.black,fontSize: 16,fontWeight: FontWeight.bold),actions: [IconButton(onPre...
await FlutterDynamicIcon.setAlternateIconName( iconName, showAlert: false, ); setState(() { curIconName = iconName; }); } } on PlatformException catch (_) { print('Failed to change app icon'); } } 视图界面 @override Widget build(BuildContext context) { return Scaffold( appBar: AppB...
appBar: AppBar( title: Text('Flutter AppBar 组件'),//标题不居中centerTitle:false, leading: IconButton( icon: Icon(Icons.menu), onPressed: () { print('我是leading按钮'); }, ), actions:<Widget>[ IconButton( icon: Icon(Icons.add_a_photo), ...
appBar: AppBar( // ... bottom: TabBar( // 选项可滚动 isScrollable: true, // 为TabBar配置控制器 controller: _tabController, tabs: items.map((Item item) { // 根据数据返回Tab组件 return Tab( text: item.title, icon: Icon(item.icon), ...
appBar: AppBar( title:constText('AppBar Demo'), actions:<Widget>[ IconButton( icon:constIcon(Icons.add_alert), tooltip:'Show Snackbar', onPressed: () { scaffoldKey.currentState.showSnackBar(snackBar); }, ), IconButton( icon:constIcon(Icons.navigate_next), ...
appBar: AppBar( backgroundColor: Colors.red,//设置AppBar背景颜色 title: Text("Flutter AppBar"),//设置标题 leading: IconButton( icon: Icon(Icons.menu), tooltip: "Search", onPressed: (){ print("menu pressed"); }, ), actions: [ ...
在Flutter中,在appBar中单击iconButton出现错误的原因可能有多种。以下是一些可能的原因和解决方法: 未定义点击事件:检查是否在iconButton上定义了onPressed属性,并确保该属性指向一个函数或方法。例如: 代码语言:txt 复制 IconButton( icon: Icon(Icons.add), ...
Flutter AppBar组件不仅可以自定义顶部导航,我们还可以自定义AppBar顶部按钮图标以及颜色 Flutter AppBar组件中的常见属性: import'package:flutter/material.dart';classAppBardemoPageextendsStatelessWidget{@overrideWidgetbuild(BuildContextcontext){returnScaffold(appBar:AppBar(backgroundColor:Colors.red,leading:IconButt...