网络文章-v1

lib/net_article/api/article_api.dart

@@ -0,0 +1,23 @@
+
+import 'package:dio/dio.dart';
+
+import '../model/article.dart';
+
+class ArticleApi{
+
+  static const String kBaseUrl = 'https://www.wanandroid.com';
+
+  final Dio _client = Dio(BaseOptions(baseUrl: kBaseUrl));
+
+  Future<List<Article>> loadArticles(int page) async {
+    String path = '/article/list/$page/json';
+    var rep = await _client.get(path);
+    if (rep.statusCode == 200) {
+      if(rep.data!=null){
+        var data = rep.data['data']['datas'] as List;
+        return data.map(Article.formMap).toList();
+      }
+    }
+    return [];
+  }
+}

lib/net_article/model/article.dart

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+class Article {
+  final String title;
+  final String url;
+  final String time;
+
+  const Article({
+    required this.title,
+    required this.time,
+    required this.url,
+  });
+
+  factory Article.formMap(dynamic json) {
+    return Article(
+      title: json['title'] ?? '未知',
+      url: json['link'] ?? '',
+      time: json['niceDate'] ?? '',
+    );
+  }
+
+  @override
+  String toString() {
+    return 'Article{title: $title, url: $url, time: $time}';
+  }
+}

lib/net_article/views/article_content.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter_first_station/net_article/api/article_api.dart';
+import '../model/article.dart';
+import 'article_detail_page.dart';
+
+class ArticleContent extends StatefulWidget {
+  const ArticleContent({Key? key}) : super(key: key);
+
+  @override
+  State<ArticleContent> createState() => _ArticleContentState();
+}
+
+class _ArticleContentState extends State<ArticleContent> {
+  List<Article> _articles = [];
+  ArticleApi api = ArticleApi();
+
+  @override
+  void initState() {
+    super.initState();
+    _loadData();
+  }
+
+  void _loadData() async {
+    _articles = await api.loadArticles(0);
+    setState(() {});
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return ListView.builder(
+      itemExtent: 80,
+      itemCount: _articles.length,
+      itemBuilder: _buildItemByIndex,
+    );
+  }
+
+  Widget _buildItemByIndex(BuildContext context, int index) {
+    return ArticleItem(
+      article: _articles[index],
+      onTap: _jumpToPage,
+    );
+  }
+
+  void _jumpToPage(Article article) {
+    Navigator.of(context).push(
+      MaterialPageRoute(
+        builder: (_) => ArticleDetailPage(article: article),
+      ),
+    );
+  }
+}
+
+class ArticleItem extends StatelessWidget {
+  final Article article;
+  final ValueChanged<Article> onTap;
+
+  const ArticleItem({Key? key, required this.article, required this.onTap})
+      : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return GestureDetector(
+      onTap: () => onTap(article),
+      child: Card(
+        elevation: 0,
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(6)),
+        color: Colors.white,
+        child: Padding(
+          padding: const EdgeInsets.symmetric(horizontal: 12.0, vertical: 8),
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Row(
+                children: [
+                  Expanded(
+                    child: Text(
+                      article.title,
+                      maxLines: 1,
+                      overflow: TextOverflow.ellipsis,
+                      style:
+                          TextStyle(fontSize: 14, fontWeight: FontWeight.bold),
+                    ),
+                  ),
+                  const SizedBox(
+                    width: 10,
+                  ),
+                  // Spacer(),
+                  Text(
+                    article.time,
+                    style: TextStyle(fontSize: 12, color: Colors.grey),
+                  ),
+                ],
+              ),
+              const SizedBox(
+                height: 4,
+              ),
+              Expanded(
+                child: Align(
+                  alignment: Alignment.centerLeft,
+                  child: Text(
+                    article.url,
+                    style: TextStyle(fontSize: 12, color: Colors.grey),
+                    maxLines: 2,
+                    overflow: TextOverflow.ellipsis,
+                  ),
+                ),
+              )
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/net_article/views/article_detail_page.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter_first_station/net_article/model/article.dart';
+import 'package:webview_flutter/webview_flutter.dart';
+
+class ArticleDetailPage extends StatefulWidget {
+  final Article article;
+
+  const ArticleDetailPage({Key? key, required this.article}) : super(key: key);
+
+  @override
+  State<ArticleDetailPage> createState() => _ArticleDetailPageState();
+}
+
+class _ArticleDetailPageState extends State<ArticleDetailPage> {
+  late WebViewController controller;
+  @override
+  void initState() {
+    super.initState();
+    controller = WebViewController()
+      ..setJavaScriptMode(JavaScriptMode.unrestricted)
+      ..setBackgroundColor(const Color(0x00000000))
+      ..loadRequest(Uri.parse(widget.article.url));
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: Text(widget.article.title)),
+      body: WebViewWidget(controller: controller),
+    );
+  }
+}

lib/net_article/views/net_articel_page.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+
+import 'article_content.dart';
+
+class NetArticlePage extends StatelessWidget {
+  const NetArticlePage({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('网络请求测试'),
+      ),
+      body: ArticleContent(),
+    );
+  }
+}