如何在iOS的quickblox中了解用户是在线还是离线？

Question

我将用户联系人存储在arrContactList

中

NSArray *arrContactList =  [QBChat instance].contactList.contacts;

从arrContactList，可以推导出现状态。

在获得在线状态后，如果用户上线或离线，如何找到它。

Answer 1

//联系人具有userId和状态

for(QBContactListItem *contact in arrContactList) {

    BOOL isOnline = contact.isOnline;
    NSInteger userIdValue = contact.userID;

    if(isOnline) {
        NSLog(@"User %ld is online",(long)userIdValue);
    }
    else {
        NSLog(@"User %ld is offline",(long)userIdValue);
    }
}

//当联系人用户上线或离线时，会调用此方法

- (void)chatDidReceiveContactItemActivity:(NSUInteger)userID isOnline:(BOOL)isOnline status:(NSString *)status{

    // here you can check presence status using isOnline and also we get userID
    // so list of user IDs who are online can be maintained in an array
}