在调试iPad代码时如何在UI上看到中间更新？

I am developing an app in which I am using a plist file. There are 21 key-value pairs in the plist. Each pair is a dictionary (type) with 6 items. The dictionary contains a set of images. In my program, I am using the path to retrieve the images. My requirement is that the images should be displayed one-by-one on the I am developing an app in which I am using a pl