iOS Question add launch image files

[le_toubib]

hi all

how to change the launch images to my app ?
any tutorial ?
i added the 3 files in the files\special folder , and tried it on several devices (4s, 5s, ipad mini) , but still i get the black screen at launch. :
Default-568h@2x.png
Default-667h@2x.png
Default-736h@3x.png
the result is the the app larger in size, slower to launch , but still in black screen

 

[Erel]

What is the width and height of Default-568h@2x ?

 

[le_toubib]

640x1136

 

[Erel]

I've just tested this image with iPhone 5S and it works properly.
Copy this file to Files\Special. You should the red background when the process is started.