IOS聊天项目、基于XMPP框架开发，实现了登陆注册(注册以手机号码注册、短信验证) 、发送消息、接收消息、接收好友请求、发起好友请求 、图片消息、语音消息、视频语音、聊天历史记录、最近联系人、二维码添加好友、用户头像上传、朋友圈、发朋友圈、异地登录退出等功能
基于XMPP聊天APP-IOS(OC)项目，支持文字、语音、表情、视频语音等聊天功能。 有问题可联系：微信：seancer1993
说明： 由于webrtc.a包太大，没有上传上来，请到百度云盘下载：https://pan.baidu.com/s/1jIaB6w2 将libWebRTC.a放到lib/WebRTC下就可以了
在消息界面，获取聊天记录时，能否做到按照最后会话时间的戳倒叙排列 像微信一样，这里是否可以优化一下？
NSPredicate 可以做到吗
怎么注册不成功呀，卡着不动。也登录不了。能不能给个账号 密码登录
对话气泡方向错误
在有语音、图片、文本的情况下，文本和语音背景会有复用问题
NetContants.h 找不到这个文件
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