DefaultTabIndicator In Flutter

DefaultTabIndicator In Flutter :

Screenshot 1 :

Screenshot 2 :

DefaultTabIndicator In Flutter :

import 'package:flutter/material.dart';
import 'tabbar_animation.dart';

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

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: ''),
    );
  }
}

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

  final String title;

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

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: DefaultTabController(
          length: 3,
          child: Scaffold(
            appBar: AppBar(
              backgroundColor: Colors.redAccent,
              elevation: 0,
              bottom: TabBar(
                  labelColor: Colors.redAccent,
                  unselectedLabelColor: Colors.white,
                  indicatorSize: TabBarIndicatorSize.label,
                  indicator: ShapeDecoration(
                      color: Colors.white,
                      shape: BeveledRectangleBorder(
                          borderRadius: BorderRadius.circular(10),
                          side: BorderSide(
                            color: Colors.white,
                          ))),
                  /*BoxDecoration(
                      borderRadius: BorderRadius.only(
                          topLeft: Radius.circular(10),
                          topRight: Radius.circular(10)),
                      color: Colors.white),*/
                  tabs: [
                    Tab(
                      child: Align(
                        alignment: Alignment.center,
                        child: Text("Flutter"),
                      ),
                    ),
                    Tab(
                      child: Align(
                        alignment: Alignment.center,
                        child: Text("Java"),
                      ),
                    ),
                    Tab(
                      child: Align(
                        alignment: Alignment.center,
                        child: Text("Android"),
                      ),
                    ),
                  ]),
            ),
            body: TabBarView(children: [
              Icon(Icons.apps),
              Icon(Icons.movie),
              Icon(Icons.games),
            ]),
          )),
    );
  }
}