Created
July 21, 2019 08:09
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Reuse widgets in Flutter
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| import 'package:flutter/material.dart'; | |
| void main() => runApp(MyApp()); | |
| class MyApp extends StatelessWidget { | |
| @override | |
| Widget build(BuildContext context) { | |
| return MaterialApp( | |
| title: 'Flutter Demo', | |
| home: HelloWidget(), | |
| ); | |
| } | |
| } | |
| class HelloWidget extends StatefulWidget { | |
| HelloWidget({Key key}) : super(key: key); | |
| _HelloWidgetState createState() => _HelloWidgetState(); | |
| } | |
| class _HelloWidgetState extends State<HelloWidget> { | |
| @override | |
| Widget build(BuildContext context) { | |
| final text = TextWidget("abcd"); | |
| return Container( | |
| child: Column( | |
| children: <Widget>[ | |
| text, | |
| text, | |
| text, | |
| ], | |
| ), | |
| ); | |
| } | |
| } | |
| class TextWidget extends StatefulWidget { | |
| final String text; | |
| TextWidget(this.text, {Key key}) : super(key: key); | |
| _TextWidgetState createState() => _TextWidgetState(); | |
| } | |
| class _TextWidgetState extends State<TextWidget> { | |
| @override | |
| Widget build(BuildContext context) { | |
| Element element = context as Element; | |
| debugPrint( | |
| "widget: ${widget.hashCode} state: ${this.hashCode} element: ${context.hashCode} renderObject: ${element.renderObject.hashCode}" | |
| " w: ${element.widget.hashCode}"); | |
| return Text(widget.text); | |
| } | |
| } |
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