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iOS

Posted by Kirill Pahnev
Kirill Pahnev
30 Points

Photo Bomber app not working?

So I'm trying to follow the tutorial but there's a problem. When I create this code it works as expected and log shows that I'm getting what I want.

NSURLSession *session = [NSURLSession sharedSession];
NSURL *url = [[NSURL alloc] initWithString:@"http://myurl.com/data.json"];  
NSURLRequest *request = [[NSURLRequest alloc] initWithURL:url];

NSURLSessionDownloadTask *task = [session downloadTaskWithRequest:request completionHandler:^(NSURL *location, NSURLResponse *response, NSError *error) {

 NSData *data = [[NSData alloc] initWithContentsOfURL:location];        
NSDictionary *responseDict = [NSJSONSerialization JSONObjectWithData:data
                                                                   options:kNilOptions
                                                                     error:nil];

self.photos = [responseDict valueForKeyPath:@"photo"];        
NSLog(@"photo %@", self.photos);

}];

[task resume];

The problem part is that when I try to set the amount of cells it doesn't work because the property is empty.

-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
    return [self.photos count];
    NSLog(@"photo %@", self.photos);
}

Can someone help me?

Arman Kussainov
Arman Kussainov
4,754 Points

Did you receive any data from web?

Kirill Pahnev
Kirill Pahnev
30 Points

Found the problem, I missed the dispatch_async part