UIImage animationImages tint color?

Question

Is there a way to tint the images in an animation?

I know I can tint a single image like this:

var imageOne:UIImage = UIImage(named: \"pullto_1.png\"         


        

Answer 1

Ok, i hoped that there is a simpler solution but this is what I ended up doing:

This function will create a new image with the wanted color:

func imageWithColor(img:UIImage, color:UIColor)->UIImage{
    UIGraphicsBeginImageContextWithOptions(img.size, false, img.scale);
    var context = UIGraphicsGetCurrentContext();
    CGContextTranslateCTM(context, 0, img.size.height);
    CGContextScaleCTM(context, 1.0, -1.0);
    CGContextSetBlendMode(context, kCGBlendModeNormal);
    var rect = CGRectMake(0, 0, img.size.width, img.size.height);
    CGContextClipToMask(context, rect, img.CGImage)
    color.setFill();
    CGContextFillRect(context, rect);
    var newImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    return newImage;
}

And then you can call it like this:

var imageOne:UIImage = UIImage(named: "pullto_1.png")!;
    imageOne = imageWithColor(imageOne, color: UIColor.redColor());
    var image2:UIImage = UIImage(named: "pullto_2.png")!;
    image2 = imageWithColor(image2, color: UIColor.redColor());
    var image3:UIImage = UIImage(named: "pullto_3.png")!;
    image3 = imageWithColor(image3, color: UIColor.redColor());
    var image4:UIImage = UIImage(named: "pullto_4.png")!;
    image4 = imageWithColor(image4, color: UIColor.redColor());

    loaderS.animationImages = NSArray(objects: imageOne,
        image2,
        image3,
        image4

    );



    loaderS.animationDuration = 1.4;
    loaderS.animationRepeatCount = 99;
    loaderS.startAnimating();