Building a News App with API Integration

This example shows how to fetch data from an API and display it in a list format.

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

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
return MaterialApp(
  title: 'News App',
  theme: ThemeData(primarySwatch: Colors.blue),
  home: NewsList(),
);
  }
}

class NewsList extends StatefulWidget {
  @override
  _NewsListState createState() => _NewsListState();
}

class _NewsListState extends State<NewsList> {
  List _articles = [];
  bool _loading = true;

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

  Future<void> _fetchNews() async {
final response = await http.get(Uri.parse('https://newsapi.org/v2/top-headlines?country=us&amp;apiKey=YOUR_API_KEY'));
if (response.statusCode == 200) {
  setState(() {
    _articles = json.decode(response.body)&#91;'articles'];
    _loading = false;
  });
} else {
  throw Exception('Failed to load news');
}
  }

  @override
  Widget build(BuildContext context) {
return Scaffold(
  appBar: AppBar(
    title: Text('News App'),
  ),
  body: _loading
      ? Center(child: CircularProgressIndicator())
      : ListView.builder(
          itemCount: _articles.length,
          itemBuilder: (context, index) {
            final article = _articles&#91;index];
            return Card(
              child: ListTile(
                title: Text(article&#91;'title']),
                subtitle: Text(article&#91;'description'] ?? ''),
                onTap: () {
                  Navigator.push(
                    context,
                    MaterialPageRoute(
                      builder: (context) => ArticleDetail(url: article&#91;'url']),
                    ),
                  );
                },
              ),
            );
          },
        ),
);
  }
}

class ArticleDetail extends StatelessWidget {
  final String url;

  ArticleDetail({required this.url});

  @override
  Widget build(BuildContext context) {
return Scaffold(
  appBar: AppBar(title: Text('Article')),
  body: Center(
    child: Text('Open URL: $url'),
  ),
);
  }
}