How to change the color of an UIImage

Question

I want not to change the backgroundColor of an UIImage,
but rather to change the color of the whole image.

Because I have got standard forms which I can move fr

Answer 1

For swift 3.2 and 4

extension UIImageView{
    func changePngColorTo(color: UIColor){
        guard let image =  self.image else {return}
        self.image = image.withRenderingMode(.alwaysTemplate)
        self.tintColor = color
    }
}

Use :

self.yourImageView.changePngColorTo(color: .red)

Answer 2

UIImage *image = [UIImage imageNamed:@"triangle.png"];

CGRect rect = CGRectMake(0, 0, image.size.width, image.size.height);
UIGraphicsBeginImageContext(rect.size);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextClipToMask(context, rect, image.CGImage);
CGContextSetFillColorWithColor(context, [[UIColor redColor] CGColor]);
CGContextFillRect(context, rect);
UIImage *img = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

UIImage *flippedImage = [UIImage imageWithCGImage:img.CGImage 
                                            scale:1.0 orientation: UIImageOrientationDownMirrored];

yourUIImageView.image = flippedImage;

Answer 3

Swift + Interface builder (storyboard)

If you added the UIImageView in the interface builder:

myIcon.image = myIcon.image!.withRenderingMode(UIImageRenderingMode.alwaysTemplate)
myIcon.tintColor = UIColor.red // your color

where myIcon is an outlet from your storyboard, ex: @IBOutlet weak var myIcon: UIImageView!

Answer 4

Change the color of the image in UIImageView:

public extension UIImageView {
    func tintImage(color: UIColor) {
        image = image?.tint(color: color)
    }
}

Just call the method:

imageView.tintImage(color: .red)

Answer 5

The accepted answer is correct, but there is a much more easy way for UIImageView:

Obj-C:

UIImage *image = [UIImage imageNamed:@"foo.png"];
theImageView.image = [image imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
[theImageView setTintColor:[UIColor redColor]];

Swift 2:

let theImageView = UIImageView(image: UIImage(named:"foo")!.imageWithRenderingMode(UIImageRenderingMode.AlwaysTemplate))
theImageView.tintColor = UIColor.redColor()

Swift 3:

let theImageView = UIImageView(image: UIImage(named:"foo")!.withRenderingMode(.alwaysTemplate))
theImageView.tintColor = UIColor.red

Answer 6

You can also do this in swift with the following code:

// language: Swift
let tintedImage = UIImageView(image: UIImage(named:"whatever")!.imageWithRenderingMode(UIImageRenderingMode.AlwaysTemplate))

tintedImage.tintColor = UIColor.redColor()