Question

I’m trying to create a UIView with 1 pixel height.

     UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0,0,20,1)];

On a non-Retina iPhone it’s ok, but on Retina it looks like 2 pixels height.

What’s wrong ?

Answer 1

On retina actual pixels and UIKit pixels are different.

Try this:

UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0,0,20,1/[[UIScreen mainScreen] scale])];