Why [UIScreen mainScreen].bounds] is not returning full screen size?

Question

I have an app that was created prior to the new iPhone 5 retina widescreen device. Now i am trying to support this high definition widescreen.

I adjust the main View

Answer 1

Point worth notice - in new Xcode you have to add this image file Default-568h@2x.png to assets

Answer 2

You have to add the iPhone 5 Launch image (Default-568h@2x.png) to your project.

The 568 point tall launch image tells iOS to launch your app in 4" mode. If you don't have this image, your app is treated as a 3.5" app. Even if it is 4" compatible.