How to make an overlay with round edges (iPhone SDK)?

I've just received a lot of good responses to the question about making overlay views. Is there a way that I can make an overlay view on the iPhone SDK?

Another question I have is how to make an overlay vie开发者_Go百科w have round edges like in the Skype iPhone app or in the Phone.app.

Thanks.

You can use these helper functions and then mask/clip to the resulting CGPath:

http://fabian-kreiser.com/index.php?id=1135350598525812781

Or use view.layer.cornerRadius, as seen in How do I create a round cornered UILabel on the iPhone?.

Use the view.layer's cornerRadius property.

#include <QuartzCore/QuartzCore.h>

...

overlayView.layer.cornerRadius = 5.0;