}classMyAppextendsStatelessWidget {constMyApp({super.key});//This widget is the root of your application.@override Widget build(BuildContext context) {returnMaterialApp( title:'Flutter Demo', theme: ThemeData( primarySwatch: Colors.blue, ), home:constMyHomePage(title: 'Flutter Demo Home Page'),...
Widget build(BuildContext context) { //设置适配尺寸 (填入设计稿中设备的屏幕尺寸) 假如设计稿是按iPhone6的尺寸设计的(iPhone6 750*1334) ScreenUtil.instance = ScreenUtil(width: 750, height: 1334)..init(context); print('设备宽度:${ScreenUtil.screenWidth}'); //Device width print('设备高度:${Sc...
CupertinoApp, or MaterialApp widget (those widgets introduce a MediaQuery), or it can happen if the context you use comes from a widget above those widgets.因为这个时候
home_widget: ^0.1.2+1 workmanager: ^0.2.2 步骤 创建android/app/res/layout/example_layout.xml 文件 创建小部件布局 创建android/app/res/xml/ home_widget_example.xml 文件 <?xml version="1.0" encoding="utf-8"?> <appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"...
Widget build(BuildContext context) { return MaterialApp( debugShowCheckedModeBanner: false, title: 'Flutter_ScreenUtil', theme: ThemeData( primarySwatch: Colors.blue, ), home: MyHomePage(), ); } } class MyHomePage extends StatelessWidget { ...
(title:'Flutter Demo',theme:ThemeData(primarySwatch:Colors.blue,),home:HomePage(),);}}classHomePageextendsStatelessWidget{@overrideWidgetbuild(BuildContextcontext){returnScaffold(appBar:AppBar(title:Text('Home Page'),),body:Center(child:ElevatedButton(onPressed:(){_showFullScreenDialog(context);},...
Widget build(BuildContext context) { // TODO: implement build return MaterialApp( title: '', home: new Scaffold( appBar: new AppBar(title: new Text('hello Column')), body: new Center( child: new Column(crossAxisAlignment: CrossAxisAlignment.center, //副轴对齐方式mainAxisAlignment: MainAxis...
printScreenInformation();returnScaffold( appBar: AppBar( title: Text(widget.title), ), body: SingleChildScrollView( child: Column( crossAxisAlignment: CrossAxisAlignment.center, children: <Widget>[ Row( children: <Widget>[ Container( padding: EdgeInsets.all(ScreenUtil().setWidth(10)), ...
home_widget 提供用于创建适用于 Android 和 iOS 的 HomeScreen 小部件的通用界面。 2022-05-14 647 flutter_screen_lock 提供在 ios 和 android 上锁定屏幕的能力,除了密码之外,还可以使用生物特征认证。 2022-07-21 141 flutter_app_lock 用于在应用打开和应用暂停时显示锁定屏幕。 2021-07-28 74 pedometer 适...
Widget build(BuildContext context) { return MaterialApp( title: 'Flutter Demo', theme: ThemeData( primarySwatch: Colors.blue, ), home: Container( decoration: BoxDecoration( color: Colors.white, ), child: Column( mainAxisAlignment: MainAxisAlignment.spaceBetween, ...