Question

In iOS, how can one briefly draw attention to an object on screen? Suppose, create a brief glow or cause a shadow to appear and then disappear?

For the purposes of this question, let’s define “object on screen” as an instance of UIImageView.

Also, if possible provide an example of how to draw attention to a button.

Answer 1

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.1f];
yourView.transform = CGAffineTransformMakeScale(1.1, 1.1);
[UIView commitAnimations];

Or, of course the same thing with a block animations. And after the attention got away from your view you can use :

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.1f];
yourView.transform = CGAffineTransformIdentity;
[UIView commitAnimations];