Modify UIImage renderingMode from a storyboard/xib file

Question

Is it possible to modify a UIImage's renderingMode from a storyboard or xib editor?

The goal is to apply tintColor to the particular UIImageView object.

Answer 1

Here's how you can do it in .xib or storyboard files:

(Obj-C) Create a category on UIImageView:

@interface UIImageView (Utils)

- (void)setImageRenderingMode:(UIImageRenderingMode)renderMode;

@end

@implementation UIImageView (Utils)

- (void)setImageRenderingMode:(UIImageRenderingMode)renderMode
{
    NSAssert(self.image, @"Image must be set before setting rendering mode");
    self.image = [self.image imageWithRenderingMode:renderMode];
}

@end

(Swift 4) Create an extension for UIImageView:

extension UIImageView {
    func setImageRenderingMode(_ renderMode: UIImage.RenderingMode) {
        assert(image != nil, "Image must be set before setting rendering mode")
        // AlwaysOriginal as an example
        image = image?.withRenderingMode(.alwaysOriginal)
    }
}

Then in the Identity Inspector in the xib file, add a runtime attribute: