UIView size/position not working on iPad as on iPhone

Question

I have a UIView of size width=320px height=40px which I want to display at the bottom looking like a tab-bar.

I use the following code to accomplish this and it works fine on iPhone. But when I try the iPad simulator, the view does not appear anywhere on the screen.

buttonsView.frame=CGRectMake(
                                0,
                                self.view.frame.size.height - buttonsView.frame.size.height,
                                self.view.frame.size.width,
                                buttonsView.frame.size.height );

This stretches the view to the width of the screen but keeps it's original height.

How can I make this show right on my iPad also?

[UPDATE]

This happens in my viewDidLoad.

I have this NSLog now:

NSLog(@"buttonsView Width: \t%g\t%g\tHeight:\t%g\t%g",self.view.frame.size.width, buttonsView.frame.size.width, self.view.frame.size.height, buttonsView.frame.size.height);

With output:
iPhone:

buttonsView Width: 320 320 Height: 460 40

iPad:

buttonsView Width: 768 768 Height: 1004 40

I also create another view like this for the top of the page which works fine:

dataView.frame=CGRectMake(
                             0,
                             0,
                             self.view.frame.size.width,
                             dataView.frame.size.height);

When is this code being called? In init, viewDidLoad, viewWillAppear, etc? — Kevin

Kevin Kevin · Accepted Answer · 2011-11-02T14:31:58

Have you looked (using breakpoints or NSLog) at the values you are putting into the CGRectMake call, just as a sort of "sanity check"?

Thanks for the info. My next thought is that between viewDidLoad and viewWillAppear something is being changed by the OS. Perhaps try moving the code to viewWillAppear so that you are guaranteed the frames you are working with will be the frames that will be displayed. This Stack Overflow answer explains it in a little bit more depth.

UIView size/position not working on iPad as on iPhone

2 Answers