Question

I am using XCode 4.5.1 and iOS Simulator (Retina 4 inch)

I have project that I made one yera ago. So now I want to migrate my project to new resolution.

My problem is next:

I integrate code into my project to detect which resolution I have.

CGRect screenBounds = [[UIScreen mainScreen] bounds];

But after I out value of screenBounds to NSLog I got width = 320 and height = 480, but I exprected to see 1136 × 640.

Have you got the same issues?

Answer 1

Are you sure you are using the 4inch simulator? [[UIScreen mainScreen] bounds] will return the screen bounds in points, not pixels. So in the 4inch iPhone the CGRectreturned should be 320×568.

So if you call [[UIScreen mainScreen] bounds]:

• <= iPhone 3GS: 320×480
• iPhone 4 & iPhone 4S: 320×480
• iPhone 5: 320×568

NOTE: If you didn’t add the [e-mail] file, and the app runs letterboxed the method you used will return the iPhone 4 & 4S values.

TIP: To determine whether you are using an iPhone 5 or the rest, this code may come handy:

#define IS_IPHONE_5 ( fabs( ( double )[ [ UIScreen mainScreen ] bounds ].size.height - ( double )568 ) < DBL_EPSILON )

if( IS_IPHONE_5 )
{
    // iPhone 5
}
else
{
   // Other
}