readReceipt abstract method

void readReceipt({ required SyMessage syMessage, required SyCallBack<bool> callBack, })

消息已读回执 @param syMessage 当前消息对象 将小于等于该消息SEQ的状态都变更为已读

Implementation

void readReceipt(
    {required SyMessage syMessage, required SyCallBack<bool> callBack});