Question

I created an app that is compatible for iOS 5 and pre iPhone 5. Meaning, its background and sprites positioning are the way they are supposed to for the iPhone 3.5 Retina. When I tried running my app on the iPhone 4″ Retina, I see black padding on the top and bottom of my app. I was trying to find a smart way to conditionally display different background and sprite positioning given the size of the screen. I tried these two ways and they are not returning the value that I expect….

NSLog(@"Win Height: %f", winSize.height);
NSLog(@"Win Width: %f", winSize.width);
NSLog(@"Main Screen Height: %f", [UIScreen mainScreen].bounds.size.height);
NSLog(@"Main Screen Width: %f", [UIScreen mainScreen].bounds.size.width);


2012-10-02 21:36:47.317 Win Height: 480.000000
2012-10-02 21:36:47.318 Win Width: 320.000000
2012-10-02 21:36:47.319 Main Screen Height: 480.000000
2012-10-02 21:36:47.319 Main Screen Width: 320.000000

Does anyone know a way to conditionally position sprite given the size of the device?

Answer 1

Have you included the [e-mail] splash image to disable letterboxing?

Once that is done you could do something like this,

#define DEVICE_IS_IPHONE5 ([[UIScreen mainScreen] bounds].size.height == 568)

if(DEVICE_IS_IPHONE5)
{
     //Do something different
}
else
{
}

Edit: Forgot the @2x