Quickblox - fetch user friends' avatars and display inside a UITableView - ios

Question

I need to display entire friend list's avatar images inside UITableView.
I could as well ask this into Quickblox forums but seems like their support is less responsive there.
I have read Quickblox documentation but can't find an efficient way of getting user's avatar images. All I see is [QBContent TDownloadFileWithBlobID], but I do not know how to use it.
I am fetching contacts using chatContactListDidChange delegate call like below. Now how can I also get all these users' avatar images also?
Note that friendsArray is my data source for the table view, so ideally I would want to store the avatar images as part of the same array.
- (void)chatContactListDidChange:(QBContactList *)contactList
{
NSLog(#"contact list changed");
NSLog(#"current contact list %#", [QBChat instance].contactList);
[self fetchContacts:[QBChat instance].contactList.contacts];
}
- (void) fetchContacts : (NSArray *) contactArray
{
NSMutableArray * userIDArray = [[NSMutableArray alloc] init];
for (QBContactListItem * contact in contactArray)
{
NSString * userIDString = [NSString stringWithFormat:#"%ld", (unsigned long)contact.userID];
[userIDArray addObject:userIDString];
}
if (!userIDArray.count)
{
return;
}
NSString * requestString = [userIDArray componentsJoinedByString:#","];
[QBUsers usersWithIDs:requestString delegate:self context:#"FetchFriends"];
}
- (void)completedWithResult:(Result *)result context:(void *)contextInfo
{
if([result isKindOfClass:[QBUUserPagedResult class]])
{
NSString * context = (__bridge NSString *)contextInfo;
// Success result
if(result.success)
{
QBUUserPagedResult * pagedResult = (QBUUserPagedResult *)result;
if ([context isEqualToString:#"FetchFriends"])
{
if (friendsArray)
{
[friendsArray removeAllObjects];
}
else
{
friendsArray = [[NSMutableArray alloc] init];
}
QBUUser * user = [pagedResult.users objectAtIndex:0];
//user.blobID
friendsArray addObjectsFromArray:pagedResult.users];
}
}
else
{
NSLog(#"Error getting users: %#", context);
}
}
}

Answer 1

Use QBUUser's fields - customData for public url of user's image and blobID for uploaded blob.
Image --> [QBContent TUploadFile...] --> Getting callback with result (QBCFileUploadTaskResult) --> getting blob (QBCBlob) --> save blob id to user.blobID --> get public url of your image: [currentBlob publicURL] --> save to user.customData --> update user: [QBUsers updateUser...]
Hope it helps you.