Flutter访问Instagram公共API插件instagram_public_api的使用

概述

instagram_public_api 是一个Flutter包，用于获取Instagram用户的详细信息和下载帖子。本文将详细介绍如何在Flutter项目中使用这个插件。

如何使用

首先，在你的Flutter项目中导入该包：

import 'package:instagram_public_api/instagram_public_api.dart';

获取用户资料详情

以下是如何获取Instagram用户资料的示例（注意：用户必须是公开账号）：

FlutterInsta insta = FlutterInsta();
// 获取用户资料详情（必须是公开账号）
InstaProfileData user = await insta.getProfileData("thefluttercommunity");
print(user.username);
print(user.profilePicURL);
print(user.bio);
print(user.externalURL);
print(user.followers);
print(user.following);
print(user.isVerified);
print(user.isPrivate);
print(user.username);

获取帖子详情

下面是如何获取特定帖子详情的示例（同样需要是公开帖子）：

// 获取帖子详情（包括嵌套的图片和视频及详情）（必须是公开帖子）
final List<InstaPost> post = await FlutterInsta().getPostData(
    "https://www.instagram.com/p/CNuL9idBnsA/?utm_source=ig_web_copy_link");
for (int i = 0; i < post.length; i++) {
  print(post[i].dimensions);
  print(post[i].displayURL); // 帖子下载链接
  print(post[i].postType);
  print(post[i].thumbnailDimensions);
  print(post[i].thumbnailUrl);
  print(post[i].user.followers);
  print(post[i].user.isPrivate);
  print(post[i].user.isVerified);
  print(post[i].user.posts);
  print(post[i].user.profilePicURL);
  print(post[i].user.username);
  print(post[i].videoDuration);
}

示例Demo

以下是一个完整的示例代码，展示了如何使用instagram_public_api来获取用户资料和帖子详情：

import 'package:flutter/material.dart';
import 'package:instagram_public_api/instagram_public_api.dart';

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

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Instagram Public API Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  [@override](/user/override)
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  String username = '';
  String profilePicURL = '';
  String bio = '';
  String externalURL = '';
  int followers = 0;
  int following = 0;
  bool isVerified = false;
  bool isPrivate = false;

  [@override](/user/override)
  void initState() {
    super.initState();
    _fetchProfileData();
  }

  Future<void> _fetchProfileData() async {
    FlutterInsta insta = FlutterInsta();
    // 获取用户资料详情（必须是公开账号）
    InstaProfileData user = await insta.getProfileData("thefluttercommunity");

    setState(() {
      username = user.username;
      profilePicURL = user.profilePicURL;
      bio = user.bio;
      externalURL = user.externalURL;
      followers = user.followers;
      following = user.following;
      isVerified = user.isVerified;
      isPrivate = user.isPrivate;
    });
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Instagram Public API Demo'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Image.network(profilePicURL),
            Text('用户名: $username'),
            Text('简介: $bio'),
            Text('外部链接: $externalURL'),
            Text('粉丝数: $followers'),
            Text('关注数: $following'),
            Text('已验证: $isVerified'),
            Text('私密账户: $isPrivate'),
          ],
        ),
      ),
    );
  }
}