main.dart.tmpl 5.73 KB
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import 'package:flutter/material.dart';
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{{#withPluginHook}}
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import 'dart:async';

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import 'package:flutter/services.dart';
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import 'package:{{pluginProjectName}}/{{pluginProjectName}}.dart';
{{/withPluginHook}}
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void main() => runApp(MyApp());
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{{^withPluginHook}}
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class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
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    return MaterialApp(
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      title: 'Flutter Demo',
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      theme: ThemeData(
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        // This is the theme of your application.
        //
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        // 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",
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        // or press Run > Flutter Hot Reload in a Flutter IDE). Notice that the
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        // counter didn't reset back to zero; the application is not restarted.
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        primarySwatch: Colors.blue,
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      ),
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      home: MyHomePage(title: 'Flutter Demo Home Page'),
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    );
  }
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}

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class MyHomePage extends StatefulWidget {
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  MyHomePage({Key key, this.title}) : super(key: key);
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  // 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.
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  // 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".
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  final String title;

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  @override
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  _MyHomePageState createState() => _MyHomePageState();
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}

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class _MyHomePageState extends State<MyHomePage> {
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  int _counter = 0;

  void _incrementCounter() {
    setState(() {
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      // 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.
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      _counter++;
    });
  }

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  @override
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  Widget build(BuildContext context) {
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    // 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.
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    return Scaffold(
      appBar: AppBar(
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        // 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.
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        title: Text(widget.title),
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      ),
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      body: Center(
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        // Center is a layout widget. It takes a single child and positions it
        // in the middle of the parent.
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        child: Column(
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          // Column is also a layout widget. It takes a list of children and
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          // arranges them vertically. By default, it sizes itself to fit its
          // children horizontally, and tries to be as tall as its parent.
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          //
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          // 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.
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          //
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          // 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).
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          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
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            Text(
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              'You have pushed the button this many times:',
            ),
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            Text(
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              '$_counter',
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              style: Theme.of(context).textTheme.headline4,
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            ),
          ],
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        ),
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      ),
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      floatingActionButton: FloatingActionButton(
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        onPressed: _incrementCounter,
        tooltip: 'Increment',
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        child: Icon(Icons.add),
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      ), // This trailing comma makes auto-formatting nicer for build methods.
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    );
  }
}
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{{/withPluginHook}}
{{#withPluginHook}}
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class MyApp extends StatefulWidget {
  @override
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  _MyAppState createState() => _MyAppState();
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}

class _MyAppState extends State<MyApp> {
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  String _platformVersion = 'Unknown';

  @override
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  void initState() {
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    super.initState();
    initPlatformState();
  }

  // Platform messages are asynchronous, so we initialize in an async method.
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  Future<void> initPlatformState() async {
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    String platformVersion;
    // Platform messages may fail, so we use a try/catch PlatformException.
    try {
      platformVersion = await {{pluginDartClass}}.platformVersion;
    } on PlatformException {
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      platformVersion = 'Failed to get platform version.';
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    }

    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
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    if (!mounted) return;
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    setState(() {
      _platformVersion = platformVersion;
    });
  }

  @override
  Widget build(BuildContext context) {
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    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
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          title: const Text('Plugin example app'),
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        ),
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        body: Center(
          child: Text('Running on: $_platformVersion\n'),
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        ),
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      ),
    );
  }
}
{{/withPluginHook}}