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AweiLoveAndroidAweiLoveAndroid
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‎TextFieldDemo.dart

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import 'package:flutter/material.dart';
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//void main() {
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// runApp(new MyApp());
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//}
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//
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//class MyApp extends StatelessWidget {
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// @override
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// Widget build(BuildContext context) {
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// return new MaterialApp(
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// title: 'TextFieldDemo',
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// theme: new ThemeData(
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// primarySwatch: Colors.blue, //蓝色主题
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// ),
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// //主要内容是什么。。。
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// home: new TextFieldDemo(),
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// );
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// }
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//}
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// //TextField基本使用
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//class TextFieldDemo extends StatelessWidget {
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// @override
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// Widget build(BuildContext context) {
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// return new Scaffold(
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// appBar: new AppBar(
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// title: new Text('TextFieldDemo'),
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// centerTitle: true,
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// ),
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// body: new Container(
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// padding: new EdgeInsets.all(5.0),
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// child: new ListView(
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// children: <Widget>[
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// new Text(
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// '请输入用户名1',
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// style: new TextStyle(fontSize: 15.0, color: Colors.teal),
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// ),
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// buildTextField(maxLength: 30),
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// new Text(
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// '请输入密码1',
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// style: new TextStyle(fontSize: 15.0, color: Colors.teal),
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// ),
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// buildTextField(
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// obscureText: true, maxLength: 16, maxLengthEnforced: true),
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// new Text(
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// '请输入用户名2',
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// style: new TextStyle(fontSize: 15.0, color: Colors.teal),
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// ),
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// buildTextField(),
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// new Text(
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// '请输入密码2',
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// style: new TextStyle(fontSize: 15.0, color: Colors.teal),
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// ),
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// buildTextField(
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// obscureText: true, maxLength: 16, maxLengthEnforced: false),
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// ],
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// ),
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// ),
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// );
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// }
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//}
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//
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//Widget buildTextField(
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// {bool obscureText = false, int maxLength, bool maxLengthEnforced = false}) {
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// return new TextField(
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//// decoration: new InputDecoration(),
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//// focusNode:,
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//// 处理交互操作的
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//// controller:,
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//// keyboardType: TextInputType.text,
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// style: new TextStyle(color: Colors.teal),
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// textAlign: TextAlign.start,
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// autofocus: true,
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// //是否加黑点隐藏输入字符 false为显示所有字符 true隐藏字符
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// obscureText: obscureText,
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// //自动更正
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// autocorrect: true,
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// maxLines: 1,
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// maxLength: maxLength,
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// // 如果为true，则阻止字段允许超过[maxLength]个字符。
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// maxLengthEnforced: maxLengthEnforced,
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//
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// ///可选的输入验证和格式化重写。
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// ///格式器在文本输入发生变化时按照所提供的顺序运行。
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//// inputFormatters:,
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//// 如果为false，则文本字段为“禁用”：它将忽略点击并将其decoration置为灰色
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// enabled: true,
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// onChanged: (String) {
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// print('onChanged ==> ' + String);
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// },
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// onSubmitted: (String) {
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// print('onSubmitted ==> ' + String);
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// },
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// );
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//}
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//带交互效果的Form + TextFormField
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void main() {
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runApp(new MaterialApp(
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title: 'FieldDemo',
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theme: new ThemeData(
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primarySwatch: Colors.blue,
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),
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home: new FieldDemo(),
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));
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}
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class FieldDemo extends StatefulWidget {
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@override
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_FieldDemoState createState() => new _FieldDemoState();
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}
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class _FieldDemoState extends State<FieldDemo> {
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GlobalKey<FormState> _formKey = new GlobalKey<FormState>();
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String _name;
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String _color;
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String _config;
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@override
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Widget build(BuildContext context) {
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return new Scaffold(
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appBar: new AppBar(
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title: new Text('新增商品'),
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),
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body: new ListView(
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children: <Widget>[
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new Padding(
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padding: const EdgeInsets.all(8.0),
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child: new Form(
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key: _formKey,
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child: new Column(
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children: <Widget>[
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new TextFormField(
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onSaved: (val) => this._name = val,
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validator: (val) =>
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(val == null || val.isEmpty) ? "请输入商品名称" : null,
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decoration: new InputDecoration(
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labelText: '商品名称',
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),
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),
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new TextFormField(
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maxLength: 32, //文本长度
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onSaved: (val) => this._color = val,
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validator: (v) => (v == null || v.isEmpty) ? "请选择颜色" : null,
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decoration: new InputDecoration(
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labelText: '颜色',
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),
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),
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new TextFormField(
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maxLength: 32,
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onSaved: (val) => this._config = val,
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validator: (v) => (v == null || v.isEmpty) ? "请选择配置" : null,
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decoration: new InputDecoration(
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labelText: '配置',
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),
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),
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new MaterialButton(
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child: new Text(
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'Submit',
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style: const TextStyle(color: Colors.white),
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),
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onPressed: _onSubmit,
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color: Theme.of(context).primaryColor,
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)
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],
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),
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),
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),
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],
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),
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);
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}
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void _onSubmit() {
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final form = _formKey.currentState;
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if (form.validate()) {
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form.save();
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showDialog(
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context: context,
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builder: (ctx) => new AlertDialog(
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content: new Text('商品名称：$_name \n 颜色：$_color \n 配置：$_config'),
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),
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);
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}
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}
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}

‎projects/flutter-demo/lib/mysample/view/ChipsDemo.dart

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import 'package:flutter/material.dart';
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void main() {
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runApp(new MyApp());
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}
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class MyApp extends StatelessWidget {
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@override
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Widget build(BuildContext context) {
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return new MaterialApp(
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title: 'main3',
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theme: new ThemeData(
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primarySwatch: Colors.blue, //蓝色主题
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),
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//主要内容是什么。。。
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home: new ChipsDemo(),
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);
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}
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}
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class ChipsDemo extends StatelessWidget {
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@override
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Widget build(BuildContext context) {
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return new Scaffold(
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appBar: new AppBar(
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title: new Text('标题'),
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centerTitle: true,
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),
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body: new Column(
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children: <Widget>[
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buildChoiceChip(),
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buildActionChip(),
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buildFilterChip(),
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buildChip(),
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buildInputChip(),
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buildRawChip(),
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],
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),
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);
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}
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}
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Widget buildChoiceChip() {
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return new ChoiceChip(
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label: new Container(
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width: 130.0,
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child: new Row(
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children: <Widget>[
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new Text(
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'ChoiceChip示例',
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style: new TextStyle(color: Colors.white),
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),
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new SizedBox(
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width: 5.0,
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),
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new CircleAvatar(
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backgroundColor: Colors.grey,
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radius: 10.0,
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child: new Icon(
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Icons.close,
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color: Colors.white,
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size: 10.0,
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),
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),
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],
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),
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),
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// labelStyle: new TextStyle(color: Colors.white),
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avatar: new CircleAvatar(
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backgroundColor: Colors.deepOrange,
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child: new Text('哈'),
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),
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selected: true,
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onSelected: (bool) {
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print('点击了ChoiceChip');
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},
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selectedColor: Colors.blue,
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);
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}
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Widget buildActionChip() {
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return new ActionChip(
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label: new Text('ActionChip示例'),
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avatar: new CircleAvatar(
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backgroundColor: Colors.deepPurpleAccent,
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child: new Text('哈'),
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),
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onPressed: () {
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print('选择了XXX');
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});
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}
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Widget buildFilterChip() {
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return new FilterChip(
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label: new Text('FilterChip示例'),
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avatar: new CircleAvatar(
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backgroundColor: Colors.lime,
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child: new Text('哈'),
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),
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onSelected: (bool) {
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print(bool);
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});
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}
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Widget buildChip() {
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return new Chip(
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label: new Text('Chip示例'),
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avatar: new CircleAvatar(
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backgroundColor: Colors.teal,
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child: new Text('哈哈'),
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),
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);
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}
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Widget buildInputChip() {
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return new InputChip(
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label: new Text('InputChip示例'),
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avatar: new CircleAvatar(
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backgroundColor: Colors.tealAccent,
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child: new Text('哈'),
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),
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);
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}
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Widget buildRawChip() {
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return new RawChip(
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label: new Text('RawChip示例'),
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avatar: new CircleAvatar(
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backgroundColor: Colors.pinkAccent,
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child: new Text('哈'),
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),
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);
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}

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