Question

I think I’m missing something simple here. I need to create a semi-transparent UIImageView that covers the entire screen including the navigation toolbar. How do I do this?

This is what I’m trying to do …

Answer 1

This is a possible solution:

UIImage *image=[UIImage imageNamed:@"whatever.png"];
UIImageView *overlay=[[UIImageView alloc] initWithImage:image];
overlay.alpha=0.5;
[[[[UIApplication sharedApplication] delegate] window] addSubview:overlay];

EDIT:

• It is likely that you would not be setting the alpha value for the overlay, but rather use a transparent PNG with embedded transparence levels. Still, it’s a possibility.
• When not using ARC, you should [overlay release].