How can I change image tintColor

Try to generate new image for yourself

UIImage *newImage = [_sketchImageView.image imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];UIGraphicsBeginImageContextWithOptions(image.size, NO, newImage.scale);[yourTintColor set];[newImage drawInRect:CGRectMake(0, 0, image.size.width, newImage.size.height)];newImage = UIGraphicsGetImageFromCurrentImageContext();UIGraphicsEndImageContext();_sketchImageView.image = newImage;

And use it.

Good luck

======= UPDATE =======

This solution will only change color of all pixel's image.

Example: we have a book image: http://pngimg.com/upload/book_PNG2113.png

And after running above code (exp: TintColor is RED). We have:

SO: how your image is depends on how you designed it

In Swift you can use this extension: [Based on @VietHung's objective-c solution]

Swift 5:

extension UIImage {      func imageWithColor(color: UIColor) -> UIImage? {        var image = withRenderingMode(.alwaysTemplate)        UIGraphicsBeginImageContextWithOptions(size, false, scale)        color.set()        image.draw(in: CGRect(x: 0, y: 0, width: size.width, height: size.height))        image = UIGraphicsGetImageFromCurrentImageContext()!        UIGraphicsEndImageContext()        return image    }}

Previous Swift version:

extension UIImage {    func imageWithColor(color: UIColor) -> UIImage? {        var image = imageWithRenderingMode(.AlwaysTemplate)        UIGraphicsBeginImageContextWithOptions(size, false, scale)        color.set()        image.drawInRect(CGRect(x: 0, y: 0, width: size.width, height: size.height))        image = UIGraphicsGetImageFromCurrentImageContext()        UIGraphicsEndImageContext()        return image    }}

In swift 2.0 you can use this

let image = UIImage(named:"your image name")?.imageWithRenderingMode(.AlwaysTemplate)let yourimageView.tintColor = UIColor.redColor()yourimageView.image = image

In swift 3.0 you can use this

let image = UIImage(named:"your image name")?.withRenderingMode(.alwaysTemplate)let yourimageView.tintColor = UIColor.redyourimageView.image = image