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iOS Displaying API Data with Collection Views in Objective-C Show Me the Data - APIs and NSURLSession Queues and User Interface

Posted by joelbumpus
joelbumpus
3,354 Points

Wondering what I may be missing....

Where am I missing something to have this pass?

AwesomeViewController.m 
#import "AwesomeViewController.h"

@implementation AwesomeViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    NSURL *url = [NSURL URLWithString:@"http://blog.teamtreehouse.com/wp-content/themes/treehouse/images/logo-blog2x.png"];

    NSURLRequest *request = [[NSURLRequest alloc] initWithURL:url];
    NSURLSession *session = [NSURLSession sharedSession];

    NSURLSessionDownloadTask *task = [session downloadTaskWithRequest:request 
                                                    completionHandler:^(NSURL *location, NSURLResponse *response, NSError *error) {
        NSData *data = [[NSData alloc] initWithContentsOfURL:location];                                              
        UIImage *image = [[UIImage alloc] initWithData:data];

             dispatch_async(dispatch_get_main_queue(), ^{
    self.imageView.image = image;
    });

    [task resume];
}

@end

                                      }