onReceiveReadReceipt property

(dynamic Function(Map? data)?) onReceiveReadReceipt

收到已读消息回执

data 回执的内容 {messageTime=已��读����最后一条消息的sendTime, tId=会话的targetId, ctype=会话类型}

eg:{messageTime=1575530815100, tId='c1Its71dc', ctype=1}

Implementation

static Function(Map? data)? onReceiveReadReceipt;