Flutter 集成融云 sdk

flutter 集成融云 sdk

前言

1.集成 flutter 融云 sdk ，须要一个稳定的 flutter 环境，能正常的建立和运行项目。
2.前期准备融云官网申请开发者帐号
经过管理后台的 "基本信息"->"App Key" 获取 AppKey
3.经过管理后台的 "IM 服务"—>"API 调用"->"用户服务"->"获取 Token"，经过用户 id 获取 IMToken
4.我知道没图是骗不到人的。先放图，你们看一下最终实现的效果。

集成 sdk

1. 依赖 IM Flutter plugin在项目的 pubspec.yaml 中写以下依赖。

dependencies:
  flutter:
    sdk: flutter

rongcloud_im_plugin: ^4.0.3

1. 而后在项目路径执行 flutter packages get 来下载 Flutter Plugin。
2. 咱们写 2 个 button 和 2 个 text ，分别用来实现 init 和 connect 的事件和状态。

4.初始化 SDK

RongIMClient.init(RongAppKey);

5.链接 IM

RongIMClient.connect(RongIMToken, (int code, String userId) {
  print('connect result ' + code.toString());
  EventBus.instance.commit(EventKeys.UpdateNotificationQuietStatus, {});
if (code == 31004 || code == 12) {
  Navigator.of(context).pushAndRemoveUntil(new MaterialPageRoute(builder: (context) => new LoginPage()), (route) => route == null);
} else if (code == 0) {
  print("connect userId" + userId);
  // 链接成功后打开数据库
  // _initUserInfoCache();
}

所有代码参考

import 'package:flutter/material.dart';
import 'package:rongcloud_im_plugin/rongcloud_im_plugin.dart' as prefix;

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

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);
  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  var _isInit ;
  var _isConnect ;
  void _init() {
    setState(() {
      prefix.RongIMClient.init("pvxdm17jpof6r");
      _isInit="已经初始化";
    });
  }
  void _connect() {
    setState(() {
      prefix.RongIMClient.connect("rbdI/5jrPxR4aQ2078HhWnHte7+VrAhsnSjOcYQ3SKOCXhodQlcZYZ5acv4syCtN0dsYRNvxZh44fo4VR5s+6A==", (code, userId){
        if(code == 0 ){
          _isConnect="链接成功";
        }else{
          _isConnect="链接失败";
        }
      });
    });
  }
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        // Here we take the value from the MyHomePage object that was created by
        // the App.build method, and use it to set our appbar title.
        title: Text(widget.title),
      ),
      body: Center(
        // Center is a layout widget. It takes a single child and positions it
        // in the middle of the parent.
        child: Column(

          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
              '$_isInit',
              style: Theme.of(context).textTheme.headline4,
            ),
            Text(
              '$_isConnect',
              style: Theme.of(context).textTheme.headline4,
            ),
            MaterialButton(
              minWidth: 250.0,
              onPressed: () {_init();},
              colorBrightness: Brightness.dark,
              color: Colors.deepPurpleAccent,
              elevation: 20.0,
              splashColor: Colors.green,
              //highlightColor: Colors.red,
              highlightElevation: 1.0,
              child: Text("初始化"),
            ),
            MaterialButton(
              minWidth: 250.0,
              onPressed: () {_connect();},
              colorBrightness: Brightness.dark,
              color: Colors.deepPurpleAccent,
              elevation: 20.0,
              splashColor: Colors.green,
              //highlightColor: Colors.red,
              highlightElevation: 1.0,
              child: Text("链接"),
            ),
          ],
        ),
      ),
    );
  }
}