RongIM初始化

public void IMconfig() {
    //BaseApplication里完成
    //初始化
    RongIM.init(this);

    //新消息处理
    RongIM.setOnReceiveMessageListener(new RongIMClient.OnReceiveMessageListener() {
        @Override
        public boolean onReceived(final Message message, int i) {
            //false 走融云默认方法  true走自己设置的方法

            if (!isAppOnForeground() && message != null) {//app是否运行在后台 不在发消息推送广播

                //未读消息数量
                RongIMClient.getInstance().getTotalUnreadCount(new RongIMClient.ResultCallback<Integer>() {
                    @Override
                    public void onSuccess(Integer integer) {
                        messageNum=integer;
                        KLog.d("---IMMessageNum："+integer);

                        //app后台运行 发送广播
                        Intent intent = new Intent();
                        intent.putExtra("SendId", message.getSenderUserId());//消息发送者
                        intent.putExtra("MsgType", message.getConversationType() + "");
                        intent.putExtra("MsgNum",messageNum+"");
                        intent.setAction("com.yu.chatdemo.receiver.ChatBoardcaseReceiver");
                        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                        BaseApplication.this.getApplicationContext().sendBroadcast(intent);

                    }

                    @Override
                    public void onError(RongIMClient.ErrorCode errorCode) {
                        KLog.d("---IMMessageNumError："+errorCode);
                    }
                });

            }

            return true;
        }
    });

    //userid对应的token
    String toke = "";

    //连接融云
    RongIM.connect(toke, new RongIMClient.ConnectCallback() {
        @Override
        public void onTokenIncorrect() {
            //Connect Token 失效的状态处理，需要重新获取 Token
            KLog.d("--IMToken失效");
        }
        @Override
        public void onSuccess(String userId) {
            KLog.d("--IM连接成功");
        }

        @Override
        public void onError(RongIMClient.ErrorCode errorCode) {
            KLog.d("--IM连接失败："+errorCode);
        }
    });

    //会话列表与会话页面的头像 昵称
    RongIM.setUserInfoProvider(new RongIM.UserInfoProvider() {

        @Override
        public UserInfo getUserInfo(String userid) {

            //昵称与头像需要根据接口自己获得

            return new UserInfo(userid,"名字", Uri.parse("https://ss3.bdstatic.com/70cFv8Sh_Q1YnxGkpoWK1HF6hhy/it/u=1088200534,4215449739&fm=116&gp=0.jpg"));
        }
    }, true);
}