delete
public abstract void deleteUltraGroupMessages(String targetId, String channelId, long timestamp, IRongCoreCallback.ResultCallback<Boolean> callback)
删除本地特定 channel 特点时间之前的消息
Since
5.2.0
Parameters
target
会话 id
channel
消息所属会话的业务标识
timestamp
时间戳
callback
删除本地所有 channel 特定时间之前的消息回调