Flutter UI Challenge - WhatsApp - March 2019

challenge.dart

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.green,
      ),
      home: MyHomePage(title: 'WhatsApp'),
    );
  }
}

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

  final String title;

  final List<Widget> items = List.of({_Messages(), Text("Def")});

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

class _MyHomePageState extends State<MyHomePage> {
  var index = 0;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        leading: Padding(
          padding: const EdgeInsets.all(8.0),
          child: CircleAvatar(
            backgroundImage: NetworkImage(
              'https://pbs.twimg.com/profile_images/1089759246143680513/fCYNB6_9_400x400.jpg',
            ),
          ),
        ),
        title: Text(widget.title),
        actions: <Widget>[
          IconButton(
            icon: Icon(
              Icons.search,
            ),
            onPressed: () {},
          ),
          IconButton(
            icon: Icon(
              Icons.settings,
            ),
            onPressed: () {},
          ),
        ],
      ),
      body: Center(
        child: widget.items[index],
      ),
      bottomNavigationBar: BottomNavigationBar(
        items: <BottomNavigationBarItem>[
          BottomNavigationBarItem(
              icon: Icon(Icons.phone), title: Text("Phone")),
          BottomNavigationBarItem(
              icon: Icon(Icons.message), title: Text("Messages")),
          BottomNavigationBarItem(
              icon: Icon(Icons.group), title: Text("Groups")),
        ],
        currentIndex: index,
        onTap: (value) {
          setState(() {
            debugPrint("index: $value");
            index = value;
          });
        },
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () {},
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}

class _Messages extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return ListView.separated(
      separatorBuilder: (context, value){
        return Container(
          height: 2,
          color: Colors.grey[200],
        );
      },
      itemCount: 30,
      itemBuilder: (context, value){
        return ListTile(
          onTap: () {},
          title: Text("Rafay Ali"),
          subtitle: Row(
            children: <Widget>[
              Icon(Icons.done_all),
              SizedBox(width: 4,),
              Flexible(child: Text("Hey how about a flutter party next weekend?", maxLines: 1, overflow: TextOverflow.ellipsis,)),
            ],
          ),
          leading: CircleAvatar(
            backgroundImage: NetworkImage(
              'https://pbs.twimg.com/profile_images/1089759246143680513/fCYNB6_9_400x400.jpg',
            ),
          ),
          trailing: Column(
            children: <Widget>[
              Text(
                "Wed",
                style: TextStyle(fontWeight: FontWeight.bold),
              ),
              Container(
                margin: EdgeInsets.only(top: 4),
                padding: EdgeInsets.all(4),
                child: Text(
                  "3",
                  style: TextStyle(color: Colors.white),
                ),
                color: Colors.green,
              )
            ],
          ),
        );
      },
    );
  }
}