How to configure properties of UIScrollView

1. I want a UIScrollView in which i have to paste 25 images of same size(256*256).
2. The 13th picture should come in the centre,ie, when the app loades.
3. Then when i swipe right, left, up or down it should scroll as normally.

For doing this what should be the specifications of the UIScrollView,ie, 1.what should be its s开发者_开发百科ize 2.ContentViewSize 3.where should be its origin.

If your scrollView is going to be shown full-screen in portrait orientation, you should use the following sizes (assuming you don't hide the status bar):

• UIScrollView frame: 320 x 460
• contentSize: 8000 x 460 initial
• contentOffset: (3840 , 0)