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 from popover to the view.
In my App it is possible to tinker the images to one big image, i.e a table.
Moreover I want change the color to white brown or what else.

But the problem is: I can only change the backgroundColor
Is there any way to change the color of the UIImage?

Thank you in advance

Answer 1

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 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;