Live Template擼碼利器

參考：https://www.jianshu.com/p/488f2d73e71d

手動輸入代碼太辛苦， 拼敲鍵盤速度？ 趕快試用代碼補全功能吧。
IntelliJ idea和Android Studio都支持代碼自動補全功能， 如上面所示的幾個場景。 在工作中可以把常用的代碼塊總結到模板裏， 輸入幾個字符自動生成代碼，從而提高擼碼效率；

例如在創建dart文件後， 文件內容是空的。 這時有代碼模塊就方便多了， 在文件中輸入stateful後點擊回車代碼就出來了。

import 'package:flutter/material.dart';

class $CUSTOMWIDGET$ extends StatefulWidget {
  $CUSTOMWIDGET$({Key key, 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
  _$CUSTOMWIDGET$State createState() => new _$CUSTOMWIDGET$State();
}

class _$CUSTOMWIDGET$State extends State<$CUSTOMWIDGET$> with WidgetsBindingObserver {
  AppLifecycleState _lastLifecycleState;
  
  @override
  void dispose() {
    super.dispose();
    WidgetsBinding.instance.removeObserver(this);
  }

  @override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    _lastLifecycleState = state;
  }

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addObserver(this);
  }
  
  void _onPressed() {
  }

  @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 new Scaffold(
      appBar: new 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: new Text(widget.title),
      ),
      body: new Center(
        // Center is a layout widget. It takes a single child and positions it
        // in the middle of the parent.
        child: new Column(
          // Column is also 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 paint" (press "p" in the console where you ran
          // "flutter run", or select "Toggle Debug Paint" from the Flutter tool
          // window in IntelliJ) 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>[
            new Text(
              'You have pushed the button this many times:',
            ),
            new Text(
              'test',
              style: Theme.of(context).textTheme.display1,
            ),
          ],
        ),
      ),
      floatingActionButton: new FloatingActionButton(
        onPressed: _onPressed,
        tooltip: 'Increment',
        child: new Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }

}
  

對應Android寫各種Adapter時， 往往還要右鍵點擊“implement method”實現抽象方法。
如果弄個模板會方便很多。