最近在作一款有語音直播功能的小程序,用到了環信IM集成功能,因爲我搜了下目前用環信作小程序的的確是少之又少,並且環信官方說從2月份再也不更新代碼(具體緣由我也沒問,可能自己微信就是一款聊天工具因此用處不大)ajax
咱們產品須要用到聊天室功能,以前作H5端登陸完成以後加入聊天室便可:小程序
WebIM.conn.open(options); WebIM.conn.joinChatRoom(option1);
一樣方法在小程序上不行,一直報錯:api
Cannot read property 'sendIQ' of undefined
百度了一下,說加入聊天室要放在登陸成功後的回調裏,因而查看它的源碼connection.js發現:微信
connection.prototype.open = function (options) { var pass = _validCheck(options, this); if (!pass) { return; } var conn = this; if (conn.isOpening() || conn.isOpened()) { return; } if (options.accessToken) { options.access_token = options.accessToken; _login(options, conn); } else { //登陸成功的回調函數 var suc = function (data, xhr, myName) { conn.context.status = _code.STATUS_DOLOGIN_IM; conn.context.restTokenData = data; if (data.statusCode != '404' && data.statusCode != '400') { wx.showToast({ title: '登陸成功', icon: 'none', duration: 4000 }); } //回調成功後執行這個方法 _login(data.data, conn); }; var options = { url: apiUrl + '/' + orgName + '/' + appName + '/token', data: loginfo, success: suc || _utils.emptyfn, error: error || _utils.emptyfn }; _utils.ajax(options); }
登陸成功有一個內部回調,回調裏面調用了一個 _login(data.data, conn)的方法:app
//具體裏面執行什麼去源代碼查看,我就不貼代碼了 var _login = function (options, conn) { var callback = function (status, msg) { _loginCallback(status, msg, conn); }; };
執行完login方法有一個_loginCallback回調:函數
var _loginCallback = function (status, msg, conn) { var conflict, error; //console.log('_loginCallback 1', Strophe.Status, status, msg) if (msg === 'conflict') { conflict = true; } console.log(status) if (status == Strophe.Status.CONNFAIL) { } else if (status == Strophe.Status.ATTACHED || status == Strophe.Status.CONNECTED) { //登陸成功 } else if (status == Strophe.Status.DISCONNECTING) { } else if (status == Strophe.Status.DISCONNECTED) { } else if (status == Strophe.Status.AUTHFAIL) { } else if (status == Strophe.Status.ERROR) { } conn.context.status_now = status; };
經過斷點發現當執行到 else if (status == Strophe.Status.ATTACHED || status == Strophe.Status.CONNECTED)時,登陸成功.因此須要把加入聊天室的回調須要放在這個判斷裏面,個人具體作法以下:工具
//項目中封裝一個加入聊天室函數 joinRoom: function () { var option1 = {}; var option2 = {}; //加入聊天室 WebIM.conn.joinChatRoom(option1); WebIM.conn.joinChatRoom(option2); }; //在環信登陸函數中添加一個本身的回調: var options = { apiUrl: WebIM.config.apiURL, user: userId + '', pwd: userId + '', grant_type: "password", appKey: WebIM.config.appkey, //本身添加的回調函數 callBack:function(){ //調用加入聊天室 that.joinRoom(); } }; WebIM.conn.open(options);
修改環信connection.js代碼:this
//登陸代碼 connection.prototype.open = function (options) { var suc = function (data, xhr, myName) { //callBack傳入加入聊天室回調 _login(data.data, conn, options.callBack); }; var options = { url: apiUrl + '/' + orgName + '/' + appName + '/token', data: loginfo, success: suc || _utils.emptyfn, //添加加入聊天室的回調函數 callBack: options.callBack, error: error || _utils.emptyfn }; } }; //_login代碼 var _login = function (options, conn, callBack) { var callback = function (status, msg) { //把加入聊天室函數傳給_login回調函數 _loginCallback(status, msg, conn, callBack); }; }; //_loginCallback代碼 var _loginCallback = function (status, msg, conn,callBack) { var conflict, error; //console.log('_loginCallback 1', Strophe.Status, status, msg) if (msg === 'conflict') { conflict = true; } console.log(status) if (status == Strophe.Status.CONNFAIL) { } else if (status == Strophe.Status.ATTACHED || status == Strophe.Status.CONNECTED) { //登陸成功執行加入聊天室 callBack(); } else if (status == Strophe.Status.DISCONNECTING) { } else if (status == Strophe.Status.DISCONNECTED) { } else if (status == Strophe.Status.AUTHFAIL) { } else if (status == Strophe.Status.ERROR) { } conn.context.status_now = status; };
具體思路就是這樣,因爲環信小程序代碼有不少坑,因此遇到問題多看看源碼,有些功能就須要本身去修改代碼,這是環信工單回答個人問題:url