I solved it using background image tiles:
self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"lines_texture.png"]];
Question
If you should do something like this overlay in Objective C how would you approach it? http://screencast.com/t/Hgif0AtCFl
It must follow the current time of the day so I don't think an image will work - any ideas?
Solution
I solved it using background image tiles:
self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"lines_texture.png"]];