How to crossfade between 2 images on iPhone using Core Animation

Question

I\'m doing this to learn how to work with Core Animation animatable properties on iPhone (not to learn how to crossfade images, per se).

Reading similar questions on

Answer 1

I found this somewhere - it works great.

Swift

UIView.transition(with: imageView, duration: 0.33, options: .transitionCrossDissolve, animations: {
      imageView.image = image
}, completion: nil)

Objc

UIImage * toImage = [UIImage imageNamed:@"image.png"];
[UIView transitionWithView:self.view
                  duration:0.33f
                   options:UIViewAnimationOptionTransitionCrossDissolve
                animations:^{
                    self.imageview.image = toImage;
                } completion:NULL];