cuberto_bottom_bar 1.1.1+1

An animated bottom navigation bar supporting drawer icon at start or end or can be used with the drawer icon and is provided with 2 different styles.

example/lib/main.dart

import 'package:cuberto_bottom_bar/cuberto_bottom_bar.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

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

class MyApp extends StatelessWidget {
  // This widget is the root of your application.

  @override
  Widget build(BuildContext context) {
    SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
        statusBarColor: Colors.black.withOpacity(1),
        statusBarIconBrightness: Brightness.light));
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData.light(),
      darkTheme: ThemeData.light(),
      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>
    with SingleTickerProviderStateMixin {
  int currentPage;
  Color currentColor = Colors.deepPurple;
  Color inactiveColor = Colors.black;
  TabController tabBarController;
  List<Tabs> tabs = new List();

  @override
  void initState() {
    super.initState();
    currentPage = 0;
    tabs.add(Tabs(
      Icons.home,
      "Home",
      Colors.deepPurple,
      getGradient(Colors.deepPurple),
    ));
    tabs.add(
        Tabs(Icons.search, "Search", Colors.pink, getGradient(Colors.pink)));
    tabs.add(
        Tabs(Icons.alarm, "Alarm", Colors.amber, getGradient(Colors.amber)));
    tabs.add(Tabs(
        Icons.settings, "Settings", Colors.teal, getGradient(Colors.teal)));
    tabBarController =
        new TabController(initialIndex: currentPage, length: 4, vsync: this);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: TabBarView(
          controller: tabBarController,
          physics: NeverScrollableScrollPhysics(),
          children: {2, 3, 1, 0}
              .map(
                (index) => Container(
                  decoration: BoxDecoration(color: tabs[currentPage].color),
                  child: InkWell(
                      child: Center(
                          child: Column(
                        mainAxisAlignment: MainAxisAlignment.center,
                        children: <Widget>[
                          Text(
                            tabs[currentPage].title,
                            textAlign: TextAlign.center,
                            style: TextStyle(
                                color: Colors.white,
                                fontSize: 20.0,
                                fontWeight: FontWeight.w700),
                          ),
                          SizedBox(height: 4),
                          Text(
                            "Click here to Change the tab To " +
                                tabs[index].title,
                            textAlign: TextAlign.center,
                            style:
                                TextStyle(color: Colors.white, fontSize: 14.0),
                          ),
                        ],
                      )),
                      onTap: () {
                        setState(() {
                          currentPage = index;
                          tabBarController.animateTo(currentPage);
                        });
                      }),
                ),
              )
              .toList()),
      drawer: new Container(
          width: 250.0,
          margin: EdgeInsets.only(bottom: 60.0),
          color: Colors.blue,
          child: ListView(
            children: <Widget>[Text("Hello"), Text("World")],
          )),
      endDrawer: new Container(
          width: 250.0,
          margin: EdgeInsets.only(bottom: 60.0),
          color: Colors.blue,
          child: ListView(
            children: <Widget>[Text("Hello"), Text("World")],
          )),
      bottomNavigationBar: CubertoBottomBar(
        inactiveIconColor: inactiveColor,
        tabStyle: CubertoTabStyle.STYLE_FADED_BACKGROUND,
        selectedTab: currentPage,
        tabs: tabs
            .map((value) => TabData(
                iconData: value.icon,
                title: value.title,
                tabColor: value.color,
                tabGradient: value.gradient))
            .toList(),
        onTabChangedListener: (position, title, color) {
          setState(() {
            tabBarController.animateTo(position);
            currentPage = position;
          });
        },
      ),
    );
  }

  @override
  void dispose() {
    tabBarController.dispose();
    super.dispose();
  }
}

class Tabs {
  final IconData icon;
  final String title;
  final Color color;
  final Gradient gradient;

  Tabs(this.icon, this.title, this.color, this.gradient);
}

getGradient(Color color) {
  return LinearGradient(
      colors: [color.withOpacity(0.5), color.withOpacity(0.1)],
      stops: [0.0, 0.7]);
}