有没有办法将标签放在 Flutter 的抽屉中？

Question

我目前是 Flutter 的新手，正在为我正在尝试实现的功能寻求帮助。目前我的抽屉里有太多信息，所以我试图在抽屉里放标签，这样人们就可以在抽屉里访问不同类型的信息。我拍了一张照片来展示我脑海中的想法。 Drawer with Tab Pictures shown here。到目前为止，我已经尝试过 DefaultTabController，但无法让它工作，所以如果有人有任何其他想法或不同的处理方式，我将不胜感激。

提前致谢！

Answer 1

您可以在下面复制粘贴运行完整代码
你可以用Drawer 包裹DefaultTabController
代码sn-p

return Scaffold(
      ...
      drawer: Drawer(
        child: DefaultTabController(
          length: 3,
          child: Column(
            mainAxisSize: MainAxisSize.max,
            children: <Widget>[
              DrawerHeader(
                child: Text('Drawer Header'),
              ),
              Container(
                height: 50,
                color: Colors.black12,
                child: TabBar(
                    labelColor: Colors.deepOrange,
                    unselectedLabelColor: Colors.white,
                    tabs: [
                      Tab(text: "First"),
                      Tab(text: "Second"),
                      Tab(text: "Third"),
                    ]),
              ),
              Expanded(
                child: Container(
                  color: Colors.green,
                  child: TabBarView(children: [
                    Container(
                      child: Text("First Body"),
                    ),
                    Container(
                      child: Text("Second Body"),
                    ),
                    Container(
                      child: Text("Third Body"),
                    ),
                  ]),
                ),
              ),
            ],
          ),
        ),
      ),

工作演示

完整代码

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

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

  final String title;

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

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

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      drawer: Drawer(
        child: DefaultTabController(
          length: 3,
          child: Column(
            mainAxisSize: MainAxisSize.max,
            children: <Widget>[
              DrawerHeader(
                child: Text('Drawer Header'),
              ),
              Container(
                height: 50,
                color: Colors.black12,
                child: TabBar(
                    labelColor: Colors.deepOrange,
                    unselectedLabelColor: Colors.white,
                    tabs: [
                      Tab(text: "First"),
                      Tab(text: "Second"),
                      Tab(text: "Third"),
                    ]),
              ),
              Expanded(
                child: Container(
                  color: Colors.green,
                  child: TabBarView(children: [
                    Container(
                      child: Text("First Body"),
                    ),
                    Container(
                      child: Text("Second Body"),
                    ),
                    Container(
                      child: Text("Third Body"),
                    ),
                  ]),
                ),
              ),
            ],
          ),
        ),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headline4,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ),
    );
  }
}