iPhone development: How to create colored or translucent background for UIActionSheet?

Question

When you try deleting a note in iPhone\'s Notes application, an UIActionSheet pops up. The sheet is translucent (but not black translucent). How is that achieved? Is it p

Answer 1

It's not too difficult. You can use the following code:

CGSize mySize = myActionSheet.bounds.size;
CGRect myRect = CGRectMake(0, 0, mySize.width, mySize.height);
UIImageView *redView = [[[UIImageView alloc] initWithFrame:myRect] autorelease];
[redView setBackgroundColor:[UIColor colorWithRed:1.0 green:0.0 blue:0.0 alpha:0.5]];
[myActionSheet insertSubview:redView atIndex:0];

Just make sure you present the UIActionSheet before doing this or the size wont be set. That makes it kind of ugly, but you could do something like:

[myActionSheet showInView:self.view];
if (!redAdded) {
    redAdded = YES;
    //THE ABOVE CODE GOES HERE
}