import "package:flutter/material.dart"; void main() { runApp(const MyApp());} class MyApp extends StatelessWidget { const MyApp({super.key}); @override Widget build(BuildContext context) { return const MaterialApp( title: "用户登录", home: LoginScreen(), ); }} class LoginScreen extends ...
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...
Flutter本身提供很多种Button。 OutlineButton 下面是一个自定义的圆角按钮 classButtonWithRadiusextendsOutlineButton{ButtonWithRadius({Key key,@requiredonPressed,Color color,Color textColor,Widget child,double radius=10.0}):super(key:key,onPressed:onPressed,child:child,color:color,textColor:textColor,shape:newR...
1 Flutter : raised button width issue 0 flutter button has spacing at the top 11 Flutter TextButton take up the whole width 0 ButtonStyle not reducing padding 27 Flutter TextButton padding 2 How to remove padding from TextButton and place it under widget Flutter 0 Padding and text ...
Flutter也有类似概念TextSpan TextSpan定义一个字符串片段该如何控制其展示样式,而将这些有独立展示样式的字符串组装在一起,则能支持混合样式的富文本展示。 分别定义黑色、红色两种展示样式,随后把一段字符串分成4个片段,并设置不同展示样式: TextStyle blackStyle = TextStyle(fontWeight: FontWeight.normal, fontSiz...
Image widget 有一个必选的 image 参数,它对应一个 ImageProvider。项目资源图片:Image(image: AssetImage("assets/images/flutter_icon.png"), width: 80) 快捷构造函数:Image.asset("assets/images/flutter_icon.png", width: 80) 本地文件图片:Image.file(new File("/storage/xxx/xxx/test.jpg"), ...
(); //clean up the controller when widget is disposed. emailController.dispose(); passwordController.dispose(); } @override Widget build(BuildContext context) { double height = MediaQuery.of(context).size.height; double width = MediaQuery.of(context).size.width; return WillPopScope( onWillPop:...
import'package:flutter/material.dart';voidmain() {runApp(constMyApp()); }classMyAppextendsStatelessWidget{constMyApp({super.key});@overrideWidgetbuild(BuildContextcontext) {returnMaterialApp( title:'Flutter Demo', theme:ThemeData( colorScheme:ColorScheme.fromSeed(seedColor:Colors.deepPurple), ...
Expected: The button text in the image shoudld be red and green respectively as per the below code sample. code sample import'package:flutter/material.dart';voidmain()=>runApp(Foo());classFooextendsStatelessWidget{constFoo({super.key});@overrideWidgetbuild(BuildContextcontext)=>MaterialApp( ...
import'package:flutter/material.dart'; Once the package is imported, you can use theTextButton.iconwidget as shown below: TextButton.icon(onPressed:(){// action to perform when the button is pressed},icon:Icon(Icons.add),label:Text('Add Item'),) ...