|
|
@@ -1,115 +1,14 @@
|
|
|
import 'package:flutter/material.dart';
|
|
|
|
|
|
void main() {
|
|
|
- runApp(const MyApp());
|
|
|
+ runApp(const ExampleApp());
|
|
|
}
|
|
|
|
|
|
-class MyApp extends StatelessWidget {
|
|
|
- const MyApp({Key? key}) : super(key: key);
|
|
|
+class ExampleApp extends StatelessWidget {
|
|
|
+ const ExampleApp({Key? key}) : super(key: key);
|
|
|
|
|
|
- // This widget is the root of your application.
|
|
|
@override
|
|
|
Widget build(BuildContext context) {
|
|
|
- return MaterialApp(
|
|
|
- title: 'Flutter Demo',
|
|
|
- theme: ThemeData(
|
|
|
- // This is the theme of your application.
|
|
|
- //
|
|
|
- // Try running your application with "flutter run". You'll see the
|
|
|
- // application has a blue toolbar. Then, without quitting the app, try
|
|
|
- // changing the primarySwatch below to Colors.green and then invoke
|
|
|
- // "hot reload" (press "r" in the console where you ran "flutter run",
|
|
|
- // or simply save your changes to "hot reload" in a Flutter IDE).
|
|
|
- // Notice that the counter didn't reset back to zero; the application
|
|
|
- // is not restarted.
|
|
|
- primarySwatch: Colors.blue,
|
|
|
- ),
|
|
|
- home: const MyHomePage(title: 'Flutter Demo Home Page'),
|
|
|
- );
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-class MyHomePage extends StatefulWidget {
|
|
|
- const MyHomePage({Key? key, required this.title}) : super(key: key);
|
|
|
-
|
|
|
- // This widget is the home page of your application. It is stateful, meaning
|
|
|
- // that it has a State object (defined below) that contains fields that affect
|
|
|
- // how it looks.
|
|
|
-
|
|
|
- // This class is the configuration for the state. It holds the values (in this
|
|
|
- // case the title) provided by the parent (in this case the App widget) and
|
|
|
- // used by the build method of the State. Fields in a Widget subclass are
|
|
|
- // always marked "final".
|
|
|
-
|
|
|
- final String title;
|
|
|
-
|
|
|
- @override
|
|
|
- State<MyHomePage> createState() => _MyHomePageState();
|
|
|
-}
|
|
|
-
|
|
|
-class _MyHomePageState extends State<MyHomePage> {
|
|
|
- int _counter = 0;
|
|
|
-
|
|
|
- void _incrementCounter() {
|
|
|
- setState(() {
|
|
|
- // This call to setState tells the Flutter framework that something has
|
|
|
- // changed in this State, which causes it to rerun the build method below
|
|
|
- // so that the display can reflect the updated values. If we changed
|
|
|
- // _counter without calling setState(), then the build method would not be
|
|
|
- // called again, and so nothing would appear to happen.
|
|
|
- _counter++;
|
|
|
- });
|
|
|
- }
|
|
|
-
|
|
|
- @override
|
|
|
- Widget build(BuildContext context) {
|
|
|
- // This method is rerun every time setState is called, for instance as done
|
|
|
- // by the _incrementCounter method above.
|
|
|
- //
|
|
|
- // The Flutter framework has been optimized to make rerunning build methods
|
|
|
- // fast, so that you can just rebuild anything that needs updating rather
|
|
|
- // than having to individually change instances of widgets.
|
|
|
- return Scaffold(
|
|
|
- appBar: AppBar(
|
|
|
- // Here we take the value from the MyHomePage object that was created by
|
|
|
- // the App.build method, and use it to set our appbar title.
|
|
|
- title: Text(widget.title),
|
|
|
- ),
|
|
|
- body: Center(
|
|
|
- // Center is a layout widget. It takes a single child and positions it
|
|
|
- // in the middle of the parent.
|
|
|
- child: Column(
|
|
|
- // Column is also a layout widget. It takes a list of children and
|
|
|
- // arranges them vertically. By default, it sizes itself to fit its
|
|
|
- // children horizontally, and tries to be as tall as its parent.
|
|
|
- //
|
|
|
- // Invoke "debug painting" (press "p" in the console, choose the
|
|
|
- // "Toggle Debug Paint" action from the Flutter Inspector in Android
|
|
|
- // Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
|
|
|
- // to see the wireframe for each widget.
|
|
|
- //
|
|
|
- // Column has various properties to control how it sizes itself and
|
|
|
- // how it positions its children. Here we use mainAxisAlignment to
|
|
|
- // center the children vertically; the main axis here is the vertical
|
|
|
- // axis because Columns are vertical (the cross axis would be
|
|
|
- // horizontal).
|
|
|
- mainAxisAlignment: MainAxisAlignment.center,
|
|
|
- children: <Widget>[
|
|
|
- const Text(
|
|
|
- 'You have pushed the button this many times:',
|
|
|
- ),
|
|
|
- Text(
|
|
|
- '$_counter',
|
|
|
- style: Theme.of(context).textTheme.headline4,
|
|
|
- ),
|
|
|
- ],
|
|
|
- ),
|
|
|
- ),
|
|
|
- floatingActionButton: FloatingActionButton(
|
|
|
- onPressed: _incrementCounter,
|
|
|
- tooltip: 'Increment',
|
|
|
- child: const Icon(Icons.add),
|
|
|
- ), // This trailing comma makes auto-formatting nicer for build methods.
|
|
|
- );
|
|
|
+ return MaterialApp();
|
|
|
}
|
|
|
}
|
Jaylen Bian