Flutter home screen

home_bloc.dart

import 'dart:convert';
import 'package:bflutter/bflutter.dart';
import 'package:bflutter_poc/api.dart';
import 'package:rxdart/rxdart.dart';
import 'package:bflutter_poc/model/user.dart';

class HomeBloc {
  var getUserInfo = Bloc<String, User>();

  HomeBloc() {
    _initGetUserInfoLogic();
  }

  void _initGetUserInfoLogic() {
    getUserInfo.business =
        (Observable<String> event) => event.asyncMap(Api().getUserInfo).map(
              (data) {
                if (data.statusCode == 200) {
                  return User.fromJson(json.decode(data.body));
                } else {
                  throw Exception(data.body);
                }
              },
            );
  }

  void getHomeInfo() {
    getUserInfo.push('beesightsoft');
  }

  void dispose() {
    getUserInfo.dispose();
  }
}

home_screen.dart

import 'dart:convert';
import 'package:bflutter_poc/home/home_bloc.dart';
import 'package:bflutter_poc/model/user.dart';
import 'package:bflutter_poc/search/search_screen.dart';
import 'package:flutter/material.dart';

class HomeScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Home Screen')),
      body: _HomeInfo(),
    );
  }
}

class _HomeInfo extends StatefulWidget {
  @override
  __HomeInfoState createState() => __HomeInfoState();
}

class __HomeInfoState extends State<_HomeInfo> {
  var bloc = HomeBloc();

  @override
  void initState() {
    super.initState();
    _onResume();
  }

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

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Padding(
        padding: EdgeInsets.only(top: 10),
        child: Column(
          children: <Widget>[
            StreamBuilder(
              stream: bloc.getUserInfo.stream(),
              builder: (context, snapshot) {
                if (snapshot.hasError) {
                  return Text(snapshot.error.toString());
                }
                if (!snapshot.hasData) {
                  return Center(
                    child: CircularProgressIndicator(),
                  );
                }
                User user = snapshot.data;
                return Column(
                  children: <Widget>[
                    CircleAvatar(
                      backgroundImage: NetworkImage(user.avatarUrl),
                      radius: 50.0,
                    ),
                    Text(json.encode(snapshot.data))
                  ],
                );
              },
            ),
            RaisedButton(
              child: Text('Search Screen'),
              onPressed: () {
                _navigateAndDisplaySelection(context);
              },
            ),
          ],
        ),
      ),
    );
  }

  _navigateAndDisplaySelection(BuildContext context) async {
    await Navigator.push(
      context,
      MaterialPageRoute(builder: (context) => SearchScreen()),
    );

    // on Resume
    _onResume();
  }

  _onResume() {
    bloc.getHomeInfo();
  }
}