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KeyboardActionsItem( focusNode: _nodeText6, footerBuilder: (_) => PreferredSize( child: SizedBox( height: 40, child: Center( child: Text(_customController.text), )), preferredSize: Size.fromHeight(40)), ), 「9.」 为了在你的应用程序中显示自定义对话框,将这个逻辑添加到 KeyboardActionsItem...
代码语言:txt 复制 import 'package:flutter/material.dart'; class KeyboardLayout extends StatelessWidget { @override Widget build(BuildContext context) { return Container( child: Column( children: [ Row( children: [ buildButton("1"), buildButton("2"), buildButton("3"), ], ), Row( children:...
preferredSize: Size.fromHeight(40)), ), 9.为了在你的应用程序中显示自定义对话框,将这个逻辑添加到 KeyboardActionsItem 中指定的焦点节点。 KeyboardActionsItem( focusNode: _nodeText3, onTapAction: () { showDialog( context: context, builder: (context) { return AlertDialog( content: Text("Show Cust...
), content: TextField( decoration: const InputDecoration(hintText: "e.g:22"), keyboardType: TextInputType.number, autofocus: true, maxLength: 3, controller: controller, inputFormatters: [ TextInputFormatter.withFunction((oldValue, newValue) { if (newValue.text.isEmpty) return newValue; try ...
<activityandroid:name=".MainActivity"android:launchMode="singleTask"android:theme="@style/LaunchTheme"android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"android:hardwareAccelerated="true"android:windowSoftInputMode="adjus...
class _KeyboardScaffoldWidgetState extends XyBaseState<KeyboardScaffoldWidget> with WidgetsBindingObserver { ///设计稿宽度 double screenWidth = 375; double get adapterRatio { return window.physicalSize.width / screenWidth; } @override void initState() { ...
TextField(controller:_controller,decoration:...,style:TextStyle(fontSize:24),autofocus:true,showCursor:true,readOnly:_readOnly, ), IconButton(icon:Icon(Icons.keyboard),onPressed:() { setState(() { _readOnly = !_readOnly; }); },
{setState((){isKeyboardVisible=visible;});});}@overrideWidgetbuild(BuildContextcontext){returnMaterialApp(home:Scaffold(appBar:AppBar(title:Text('Keyboard Visibility'),),body:Center(child:Text(isKeyboardVisible?'Keyboard is visible':'Keyboard is hidden',style:TextStyle(fontSize:24),),),),);...
fontSize:48, fontWeight: FontWeight.w400), ), ), ), SizedBox( height:20, ), _CalculatorKeyboard( onValueChange: _onValueChange, ), SizedBox( height:80, ) ], ), ) SizedBox组件用于两个组件之间的间隔。 _CalculatorKeyboard是底部的输入按钮组件,也是此项目的重点,除了0这个按钮外,其余都是圆形...