Partialy clip subviews

Question

I am trying to get a UIView to clip to subviews but not entirely. I mean like an alpha change, outside the bounds

Edit:

I want this to be like the keynote mask feature for an image in the iPad.

Answer 1

You aren't going to be able to change alpha outside the bounds of a view, as you indicate. But a better solution would be:

Create a new view that extends the entire area. Set the alpha of this view to the desired value. Add another view inside this view, set clipsToBounds = YES on this view.

You can achieve this by using 2 views, but I don't think you can with 1.