使用TextButton 代码语言:javascript 复制 import'package:flutter/material.dart';voidmain(){runApp(MyApp());}classMyAppextendsStatelessWidget{@override Widgetbuild(BuildContext context){returnMaterialApp(home:Scaffold(appBar:AppBar(title:Text('TextButton with Icon and Text'),),body:Center(child:TextButt...
constText.rich(this.textSpan,{Key key,this.style,this.textAlign,this.textDirection,this.locale,this.softWrap,this.overflow,this.textScaleFactor,this.maxLines,this.semanticsLabel,}):assert(textSpan!=null),data=null,super(key:key); Sample code constText.rich(constTextSpan(text:'Hello',// defaul...
IconTextButton是一个图文按钮,Flutter的RaisedButton按钮RaisedButton.icon()按钮只能实现左图右文字 IconTextButton.icon()可以实现四种样式: 图在上文字在下,图在下文字在上,图在左文字在右,图在右文字在左 使用也很简单,其它属性设置和RaisedButton.icon()一样, 只需要设置属性iconTextAlignment,它是一个枚举值...
import 'package:flutter/material.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( home: Scaffold( appBar: AppBar(title: Text('Custom Button with Icon')), body: Center(child: CustomIconButton()...
Flutter 里有多种 Button 按钮组件: ElevatedButton : "漂浮"按钮 TextButton :文本按钮 OutlinedButton :线框按钮 IconButton :图标按钮 ButtonBar :按钮组 FloatingActionButton :浮动按钮 属性 按钮(Button)有以下常用属性: onPressed :必填参数,按下按钮时触发的回调,接收一个方法,传 null 表示按钮禁用,会显示禁...
Flutter有很多的基础Widget,其中IconButton很常用,还有 PopupButton, 这里扩展的这个 AppBarButton 是将两者融合一起,用起来更方便了。 import 'package:flutter/material.dart'; class AppBarButton<T>extends StatelessWidget { final Widget child; final Color color, focusColor; ...
TextSpan(text:'中的', style:redStyle), //第1个片段,红色样式 TextSpan(text:'TextView', style: blackStyle) //第1个片段,黑色样式 ]), textAlign: TextAlign.center, ); 运行效果,如下图所示: 再看Flutter中的图片控件Image。 2 图片
IconButton:带图标按钮 按钮测试页dart: import 'package:flutter/material.dart'; class ButtonPage extends StatelessWidget { @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text("Button Page"), ), body: Column( ...
Steps to reproduce Code sample Run Expected results When running on version 3.26.0-0.1.pre (or master branch), the icon of the TextButton appears smaller compared to version 3.24.3. I tested on both Android 15 (beta) and Android 13, and ...
builder: (context)=> FloatingActionButton(onPressed: () =>_changeValue(context), child: Icon(Icons.send))), ); } } 效果图 请注意看fab和值的变化: BottomSheet BottomSheet看命名就知道是从底部弹出的菜单,展示BottomSheet有两种方式,分别是showBottomSheet和showModalBottomSheet,两种方式只有在展示类型上的差...