Example of using SDWebImage

Example.m

- (UIImage *)userImage
{
    UIImage *cachedImage = nil;
    NSString *imagePath = self.imageFilename;
    
    if (imagePath)
    {
        SDWebImageManager *manager = [SDWebImageManager sharedManager];
        NSURL *imageURL = [NSURL URLWithString:imagePath];
        
        if ([manager diskImageExistsForURL: imageURL])
        {
            cachedImage = [[manager imageCache] imageFromDiskCacheForKey:imagePath];
        }
        else
        {
            [self cacheUserImageForFilename:imagePath];
        }
    }
    
    return cachedImage;
}

- (void) cacheUserImageForFilename:(NSString *)filePath
{
    SDWebImageManager *manager = [SDWebImageManager sharedManager];
    
    NSURL *imageURL = [NSURL URLWithString:filePath];

    
    if (![manager diskImageExistsForURL:imageURL])
    {
        [manager downloadImageWithURL:imageURL
                              options:0
                             progress:nil
                            completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL)
        {
            NBULogDebug(@"Image loaded %@", error ? error.debugDescription : @"SUCCESS");
        }];
    }
}