Download Data Asynchronous ios - ios

Question

I am getting user informations from Facebook which are picture and username.Than i show to user this informations. But the problem is; picture is coming late.So i used SVProgressHUD like Loading... I want to dismiss my SVProgressHUD after download my picture and show the user.Do i need to use Asynchronous or something like that?
Here is my code part;
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
RoundedImageView *profileImageView = [[RoundedImageView alloc] initWithFrame:CGRectMake(27, 80, 70, 70)];
_userNameLabel.hidden = YES;
profileImageView.hidden = YES;
[SVProgressHUD showWithStatus:#"Loading..."];
//[NSTimer scheduledTimerWithTimeInterval:2.0f target:self selector:#selector(LoadingDismiss) userInfo:nil repeats:NO];
[[FBRequest requestForMe] startWithCompletionHandler:^(FBRequestConnection *connection, NSDictionary<FBGraphUser> *FBuser, NSError *error) {
if (error) {
// Handle error
}
else {
NSString *username = [FBuser name];
NSLog(#"username = %#",username);
NSString *userBirtday = [FBuser birthday];
NSLog(#"birthday = %#",userBirtday);
NSString *email = [FBuser objectForKey:#"email"];
NSLog(#"email = %#",email);
NSString *userID = [FBuser objectForKey:#"id"];
NSLog(#"userID = %#",userID);
//==========================================================================ResimAlma
NSString *userImageURL = [NSString stringWithFormat:#"https://graph.facebook.com/%#/picture?type=normal", userID];
NSURL * imageURL = [NSURL URLWithString:userImageURL];
NSData * imageData = [NSData dataWithContentsOfURL:imageURL];
UIImage *image = [UIImage imageWithData:imageData];
//Configring the rounded imageview by setting appropriate image and offset.
profileImageView.imageOffset = 2.5;
profileImageView.image = image;
profileImageView.backgroundImage = [UIImage imageNamed:#"dp_holder_large.png"];
[self.view addSubview:profileImageView];
if (image == nil) {
profileImageView.imageOffset = 2.5;
profileImageView.image = [UIImage imageNamed:#"noImage.png"];
profileImageView.backgroundImage = [UIImage imageNamed:#"dp_holder_large.png"];
}else{
profileImageView.imageOffset = 2.5;
profileImageView.image = image;
profileImageView.backgroundImage = [UIImage imageNamed:#"dp_holder_large.png"];
}
_userNameLabel.text = username;
_userNameLabel.hidden = NO;
profileImageView.hidden = NO;
}
}];
[SVProgressHUD dismiss];
}
Thank you for your interest and help. :)

Answer 1

Put [SVProgressHUD dismiss] in the end of your completion block. With your current code, the progress indicator will dismiss immediately after you make a request to Facebook (since that call is non-blocking).

Answer 2

Put
[SVProgressHUD dismiss];
inside your completion block