Getting Image from URL Objective C

Question

I\'m trying to get an image from an URL and it doesn\'t seem to be working for me. Can someone point me in the right direction?

Here is my code:

NSUR         


        

Answer 1

the accepted answer asynchronous version worked very slow in my code. an approach using NSOperation worked light years faster. the code provided by Joe Masilotti --> objective - C : Loading image from URL? (and pasted below):

-(void) someMethod {
    // set placeholder image
    UIImage* memberPhoto = [UIImage imageNamed:@"place_holder_image.png"];

    // retrieve image for cell in using NSOperation
    NSURL *url = [NSURL URLWithString:group.photo_link[indexPath.row]];
    [self loadImage:url];
}

- (void)loadImage:(NSURL *)imageURL
{
    NSOperationQueue *queue = [NSOperationQueue new];
    NSInvocationOperation *operation = [[NSInvocationOperation alloc]
                                        initWithTarget:self
                                        selector:@selector(requestRemoteImage:)
                                        object:imageURL];
    [queue addOperation:operation];
}

- (void)requestRemoteImage:(NSURL *)imageURL
{
    NSData *imageData = [[NSData alloc] initWithContentsOfURL:imageURL];
    UIImage *image = [[UIImage alloc] initWithData:imageData];

    [self performSelectorOnMainThread:@selector(placeImageInUI:) withObject:image waitUntilDone:YES];
}

- (void)placeImageInUI:(UIImage *)image
{
    [self.memberPhotoImage setImage:image];
}