ascync loading background image and extracting its background color with LEColorPicker

gistfile1.txt

    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
        
        if (!self.imageURLString){
            self.imageURLString = self.sourceAvartarImageURL;
            self.backgroundImageView.contentMode = UIViewContentModeScaleAspectFill;
        }
        
        UIImage * feedImage = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:self.imageURLString]]];
        dispatch_async(dispatch_get_main_queue(), ^{
            self.backgroundImageView.alpha = 0.0f;
            self.backgroundImageView.image = feedImage;
            
            [LEColorPicker pickColorFromImage:feedImage onComplete:^(NSDictionary *colorsPickedDictionary) {
                [UIView beginAnimations:@"ColorChange" context:nil];
                [UIView setAnimationCurve: UIViewAnimationCurveEaseInOut];
                [UIView setAnimationDuration:0.5];
                self.view.backgroundColor = colorsPickedDictionary[@"BackgroundColor"];
                [UIView commitAnimations];
            }];
            
            [UIView animateWithDuration:0.3f delay:0.0f options:UIViewAnimationOptionCurveEaseInOut animations:^{
                self.backgroundImageView.alpha = 1.0f;
            } completion:^(BOOL finished) {
            }];
        });
    });