任何人可以建议我如何得到我的朋友列表个人资料图片和状态

Question

目前我在工作基于聊天的应用程序。我成功上传了我的个人资料图片。任何人都可以告诉我如何获得我的朋友列表，个人资料图片和状态。我尝试了下面的代码。我正在使用XMPP框架聊天。

此代码为retriving我自己Prifile图片

xmppvCardStorage = [XMPPvCardCoreDataStorage sharedInstance]; 
xmppvCardTempModule= [[XMPPvCardTempModule alloc] initWithvCardStorage:xmppvCardStorage]; 

XMPPvCardAvatarModule *xmppvCardAvatarModule = [[XMPPvCardAvatarModule alloc] initWithvCardTempModule:xmppvCardTempModule]; 

XMPPJID *jid = [XMPPJID jidWithString:[NSString stringWithFormat:@"%@@localhost",str]]; 
NSData *avtarData = [xmppvCardAvatarModule photoDataForJID:jid]; 

    **This code for Upload my own Prifile picture** 

NSXMLElement *vCardXML = [NSXMLElement elementWithName:@"vCard" xmlns:@"vcard-temp"]; 
XMPPvCardTemp *newvCardTemp = [XMPPvCardTemp vCardTempFromElement:vCardXML]; 

[newvCardTemp setGivenName:@"gireesh"]; 
[newvCardTemp setSortString:@"Chanti"]; 


NSArray *arr1= [[NSUserDefaults standardUserDefaults]objectForKey:@"USER"]; 
[[NSUserDefaults standardUserDefaults]synchronize]; 
DLog(@"user Profile %@",[arr1 objectAtIndex:0]); 
DLog(@"user Profile %@",[arr1 objectAtIndex:1]); 
NSString *str = [NSString stringWithFormat:@"%@%@",[arr1 objectAtIndex:1],[arr1 objectAtIndex:0]]; 




[newvCardTemp setJid:[XMPPJID jidWithString:[NSString stringWithFormat:@"%@@localhost",str]]]; 
[newvCardTemp setFormattedName:@""]; 
[newvCardTemp setEmailAddresses:[getdic valueForKey:@"emailid"]]; 


NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
NSString *documentsDirectory = [paths objectAtIndex:0]; 
NSString *imageFilePath = [documentsDirectory stringByAppendingPathComponent:@"Profileimage"]; 

UIImage* image1 = [UIImage imageWithContentsOfFile:imageFilePath]; 
NSData *imageData1 = UIImagePNGRepresentation(image1); 

[newvCardTemp setPhoto:imageData1]; 
[xmppvCardTempModule updateMyvCardTemp:newvCardTemp]; 
[xmppvCardTempModule activate:[self appDelegate].xmppStream]; 
[xmppvCardTempModule addDelegate:self delegateQueue:dispatch_get_main_queue()]; 

Answer 1

从XMPPUserCoreData获取用户对象，然后使用用户对象来获取用户列表的照片和名字。

我使用此代码来获取用户。获取用户后您可以使用user.photo获取用户图像，user.displayName获取用户名和NSFetchedResultsController对象的section属性以获取状态。 如果部分值为0，则状态：Available，如果状态为1：Away，否则Offline

- (NSFetchedResultsController *)fetchedResultsControllerContacts 
{ 
    if (fetchedUserLists == nil) 
    { 
     NSManagedObjectContext *moc = [[AppDelegate delegate] managedObjectContext_roster]; 

     NSEntityDescription *entity = [NSEntityDescription entityForName:@"XMPPUserCoreDataStorageObject" 
                inManagedObjectContext:moc]; 

     NSSortDescriptor *sd1 = [[NSSortDescriptor alloc] initWithKey:@"sectionNum" ascending:YES]; 
     NSSortDescriptor *sd2 = [[NSSortDescriptor alloc] initWithKey:@"displayName" ascending:YES]; 

     NSArray *sortDescriptors = [NSArray arrayWithObjects:sd1, sd2, nil]; 

     NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; 
     [fetchRequest setEntity:entity]; 
     [fetchRequest setSortDescriptors:sortDescriptors]; 
     [fetchRequest setFetchBatchSize:10]; 

     fetchedUserLists = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest 
                      managedObjectContext:moc 
                      sectionNameKeyPath:@"sectionNum" 
                         cacheName:nil]; 
     [fetchedUserLists setDelegate:(id)self]; 
     NSError *error = nil; 
     if (![fetchedUserLists performFetch:&error]) 
     { 
      DDLogError(@"Error performing fetch: %@", error); 
     } 
    } 
    return fetchedUserLists; 
} 

为了得到区间的数目 - >计数

NSArray *sections = [[self fetchedResultsControllerContacts] sections]; 

为了得到在一个部分中的行数在numberOfRowsInSection方法

if (section < [sections count]) 
{ 
    id <NSFetchedResultsSectionInfo> sectionInfo = [sections objectAtIndex:sectionIndex]; 
    return sectionInfo.numberOfObjects; 
} 

获取单个用户 里面cellForRowAtIndexPath

XMPPUserCoreDataStorageObject *user = [[self fetchedResultsControllerContacts] objectAtIndexPath:indexPath]; 

希望它能帮助。 快乐编码...