Tabbar Customisation in Flutter

Question

I have studied about creating Tabbar in Flutter but as so far I know We can create Tabbar inside AppBar widget which is inside Scaffold widget.

But I want something like below :

So far I have as below:

I have created Tab screens but have to manage tab selections as above.

As you can see above, Appbar is different and tabbar is outside Appbar, How can I manage this to customise this Tabs in Flutter? Thanks.

Answer 1

try this

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

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

class MyHomePage extends StatefulWidget {
  final String title;

  const MyHomePage({
    Key? key,
    required this.title,
  }) : super(key: key);

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

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

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

  @override
  Widget build(BuildContext context) {
    return DefaultTabController(
        length: 3,
        child: Scaffold(
          appBar: AppBar(
            centerTitle: false,
            title: Text(
              "Facilities",
              style: TextStyle(color: Colors.black, fontSize: 20),
            ),
            actions: <Widget>[
              Padding(
                  padding: EdgeInsets.only(right: 20.0),
                  child: GestureDetector(
                    onTap: () {},
                    child: Icon(
                      Icons.search,
                      size: 26.0,
                    ),
                  )),
            ],
            backgroundColor: Colors.white,
            elevation: 0,
            bottom: TabBar(
                unselectedLabelColor: Colors.redAccent,
                indicatorSize: TabBarIndicatorSize.tab,
                indicator: BoxDecoration(
                    gradient: LinearGradient(
                        colors: [Colors.redAccent, Colors.orangeAccent]),
                    borderRadius: BorderRadius.circular(6),
                    color: Colors.redAccent),
                tabs: [
                  Tab(
                    child: Align(
                      alignment: Alignment.center,
                      child: Text("Attraction"),
                    ),
                  ),
                  Tab(
                    child: Align(
                      alignment: Alignment.center,
                      child: Text("Events"),
                    ),
                  ),
                  Tab(
                    child: Align(
                      alignment: Alignment.center,
                      child: Text("Utils"),
                    ),
                  ),
                ]),
          ),
          body: TabBarView(children: [
            Icon(Icons.apps),
            Icon(Icons.movie),
            Icon(Icons.games),
          ]),
        ));
  }
}