成员的完整列表，这些成员属于 com.netease.nimlib.sdk.qchat.QChatServiceObserver,包括所有继承而来的类成员

observeAttachmentProgress(Observer< AttachmentProgress > observer, boolean register)	com.netease.nimlib.sdk.qchat.QChatServiceObserver
observeKickedOut(Observer< QChatKickedOutEvent > observer, boolean register)	com.netease.nimlib.sdk.qchat.QChatServiceObserver
observeMessageDelete(Observer< QChatMessageDeleteEvent > observer, boolean register)	com.netease.nimlib.sdk.qchat.QChatServiceObserver
observeMessageRevoke(Observer< QChatMessageRevokeEvent > observer, boolean register)	com.netease.nimlib.sdk.qchat.QChatServiceObserver
observeMessageStatusChange(Observer< QChatMessage > observer, boolean register)	com.netease.nimlib.sdk.qchat.QChatServiceObserver
observeMessageUpdate(Observer< QChatMessageUpdateEvent > observer, boolean register)	com.netease.nimlib.sdk.qchat.QChatServiceObserver
observeMultiSpotLogin(Observer< QChatMultiSpotLoginEvent > observer, boolean register)	com.netease.nimlib.sdk.qchat.QChatServiceObserver
observePushNoDisturbConfigUpdate(Observer< QChatPushConfig > observer, boolean register)	com.netease.nimlib.sdk.qchat.QChatServiceObserver
observeReceiveMessage(Observer< List< QChatMessage >> observer, boolean register)	com.netease.nimlib.sdk.qchat.QChatServiceObserver
observeReceiveSystemNotification(Observer< List< QChatSystemNotification >> observer, boolean register)	com.netease.nimlib.sdk.qchat.QChatServiceObserver
observeReceiveTypingEvent(Observer< QChatTypingEvent > observer, boolean register)	com.netease.nimlib.sdk.qchat.QChatServiceObserver
observeServerUnreadInfoChanged(Observer< QChatServerUnreadInfoChangedEvent > observer, boolean register)	com.netease.nimlib.sdk.qchat.QChatServiceObserver
observeStatusChange(Observer< QChatStatusChangeEvent > observer, boolean register)	com.netease.nimlib.sdk.qchat.QChatServiceObserver
observeSystemNotificationUpdate(Observer< QChatSystemNotificationUpdateEvent > observer, boolean register)	com.netease.nimlib.sdk.qchat.QChatServiceObserver
observeUnreadInfoChanged(Observer< QChatUnreadInfoChangedEvent > observer, boolean register)	com.netease.nimlib.sdk.qchat.QChatServiceObserver