Container 给一个组件添加padding,margins,边界(borders),背景颜色或者其他装饰 (decorations)和阴影。 import'package:flutter/material.dart';classLearnContainer extends StatefulWidget{ @override State<StatefulWidget>createState() {r
1、Width = Wrap_content Height=Wrap_content: Wrap( children: <Widget>[your_child]) 2、Width = Match_parent Height=Match_parent: Container(height: double.infinity, width: double.infinity,child:your_child) 3、Width = Match_parent ,Height = Wrap_conten: Row( mainAxisSize: MainAxisSize.max, ...
MainAxisSize的取值有两种: max:根据传入的布局约束条件,最大化主轴方向的可用空间; min:与max相反,是最小化主轴方向的可用空间; 从这里可以看出来这两个属性与我们接触过的Android的match_parent和wrap_content相似。 这里值得注意的是如果我们将mainAxisSize设置为min,还设置了mainAxisAlignment可能会导致其效果展示不...
/> <FrameLayout android:id="@+id/container" android:layout_width="wrap_content" android:layout_height="0dp" android:layout_weight="1"> </FrameLayout> </LinearLayout> 是的你没有看错,我们打算用一个FrameLayout去承载一个Flutter页面, 接下来我们利用上面路由的Flutter页面来嵌入到原生页面里面: Flutte...
1、Width = Wrap_content Height=Wrap_content: Wrap(children:<Widget>[your_child]) 2、Width = Match_parent Height=Match_parent: Container(height:double.infinity,width:double.infinity,child:your_child) 3、Width = Match_parent ,Height = Wrap_conten: ...
Flutter 消除黄色报警 Wrap 超出部分报警 代码 import 'package:flutter/material.dart'; class WrapDemo extends StatelessWidget { @override Widget build(BuildContext context) { return Container( child: Wrap( alignment: WrapAlignment.center, spacing: 10,...
1、Width = Wrap_content Height=Wrap_content: Wrap( children: <Widget>[your_child]) 2、Width = Match_parent Height=Match_parent: Container( height: double.infinity, width: double.infinity,child:your_child) 3、Width = Match_parent ,Height = Wrap_conten: ...
showDialog(context:context,builder:(BuildContext context){returnCupertinoAlertDialog(title:Text('Alert'),content:Text('This is an alert dialog.'),actions:[CupertinoDialogAction(child:Text('OK'),onPressed:(){// 处理按钮点击事件Navigator.of(context).pop();},),],);},) ...
TestClipPaintingContext should dispose ContainerLayer by @polina-c in #135949 RenderAnnotatedRegion should dispose created layers. by @ksokolovskyi in #136086 Cover more test/material tests with leak tracking. by @ksokolovskyi in #136093 TimePickerDialog should dispose created ChangeNotifiers. by ...
return Container( color: Colors.white, child: GridView.count( crossAxisCount: 4, shrinkWrap: true, primary:false, children: <Widget>[ MeCell( title: '大学生活', icon: Icons.school, onPressed: () {}, ), MeCell( title: '包包',