Spacing: 5, // direction: Axis.vertical, // alignment: WrapAlignment.start, // runAlignment: WrapAlignment.center, children: _customButton(), ), ); } } //自定义按钮 // ignore: must_be_immutable class XSHButton extends StatelessWidget { String text; void Function() onPressed; XSHButton(...
Button( style: ButtonStyle( backgroundColor: WidgetStateProperty.all(Colors.blue),// 背景颜色foregroundColor: WidgetStateProperty.all(Colors.white),// 文本颜色side: WidgetStateProperty.all(constBorderSide( width:2, color: Colors.red,// 边框颜色) ) ), child:constText("Custom OutlineButton"), ...
import'package:flutter/material.dart';import'CustomButton.dart';//调用自定义组件classCustomWidgetRouteextendsStatefulWidget{@overrideState<StatefulWidget>createState(){return_CustomWidgetRouteState();}}class_CustomWidgetRouteStateextendsState<CustomWidgetRoute>{int_counter=0;voiddoClick(){setState((){debugP...
class CustomIconButton extends StatelessWidget { @override Widget build(BuildContext context) { return ElevatedButton.icon( onPressed: () { // 按钮点击事件处理 print('Button pressed!'); }, icon: Icon(Icons.add), // 使用Material Design图标 label: Text('Add Item'), // 按钮文本 style: Eleva...
CustomButton(Colors.red, key:ValueKey('A'),), CustomButton(Colors.blue, key:ValueKey('B'),), ], ); 再次交换两组件的位置,我们发现颜色和数字都发生了变化,这是因为使用了Key之后,此时Element树中第一位置存储了数字2的Element发现Widget树中第一位置上的最新的Widget和它创建的RenderObject中旧的widget...
[ ElevatedButton( onPressed: () { showCustomBottomSheet(context); }, style: ElevatedButton.styleFrom( minimumSize: const Size(160, 80), ), child: Text("AlertDialog(提示对话框)"), ), ], ); } } void showCustomBottomSheet(BuildContext context) { showModalBottomSheet( context: context, ...
style: ElevatedButton.styleFrom( foregroundColor: Colors.white, backgroundColor: Colors.red, shape: RoundedRectangleBorder( borderRadius: BorderRadius.circular(10), ), padding: const EdgeInsets.symmetric(vertical: 16, horizontal: 24), ),
所以需要通过 Builder 包裹一层Builder(builder:(context)=>RaisedButton(onPressed:()=>_changeValue(context),child:Text('修改当前值'))),]))]),// 当 SnackBar 弹出时,fab 会上移一段距离floatingActionButton:Builder(builder:(context)=>FloatingActionButton(onPressed:()=>_changeValue(context),child:...
[Proposal] : Color for unselected Button in ToggleButtons #66049 commented on Mar 4, 2025 • 0 new comments Text features in Text widget should be implemented without TextStyle #66002 commented on Mar 4, 2025 • 0 new comments Dark theme overrides primarySwatch #64426 commented on...
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