UILaunchImageFile 专门解决 iphone ipad 统一版设置的default页设置项。

UILaunchImageFile

UILaunchImageFile

(

String

- iOS) specifies the name of the launch image file for the application.
If this key is not specified, the system assumes a name of

Default.png

. This key is typically used by universal applications when different sets of launch images are needed
for iPad versus iPhone or iPod touch devices.

If you include this key in your

Info.plist

file, any launch images you include in your application’s bundle should be based on the string. For example, suppose you want to include
portrait and landscape launch images for iPad using the base name

MyiPadImage.png

. You would include the

UILaunchImageFile~ipad

key
in your

Info.plist

file and set its value to

MyiPadImage.png

. You would then include a

MyiPadImage-Portrait.png

file
and a

MyiPadImage-Landscape.png

file in your bundle to specify the corresponding launch images.

This key is supported in iOS 3.2 and later.