import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
import 'dart:convert';


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

class BlogApp extends StatefulWidget {
  @override
  _BlogAppState createState() => _BlogAppState();
}

class _BlogAppState extends State<BlogApp> {
  var _isLoading = true;

  var items;

  _fetchData() async {
    print("Attempting to fetch data from network");
    final url =
        "https://www.googleapis.com/blogger/v3/blogs/MY-BLOG-ID/posts?key=API-KEY";
    final response = await http.get(url);
    if (response.statusCode == 200) {
      // print(response.body);

      final map = jsonDecode(response.body);
      final itemsJson = map["items"];

      //itemsJson.forEach((item) {
      //  print(item['title']);
      //});

      setState(() {
        _isLoading = false;
        this.items = itemsJson;
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text("BlogApp"),
          centerTitle: true,
          actions: <Widget>[
            IconButton(
                icon: Icon(Icons.refresh),
                onPressed: () {
                  print("Reloading...");
                  setState(() {
                    _isLoading = true;
                  });
                  _fetchData();
                })
          ],
        ),
        body: Center(
          child: _isLoading
              ? CircularProgressIndicator()
              : ListView.builder(
                  itemCount: this.items != null ? this.items.length : Container(),
                  itemBuilder: (context, i) {
                    final item = this.items[i];
                    return Column(
                      children: <Widget>[
                        Image.network(item["image"]),
                        Text(item["title"]),
                        Divider()
                      ],
                    );
                    //return Text("Row: $i");
                  }),
        ),
      ),
    );
  }
}