uitableview use issues

Brother wanted to use a uitableview classification, the question now is: dragging up the first category, the first classification of the header will not move until the first header will disappear when the classification is about to move together to disappear; Drag down the final classification, the last classification footer will not move until the last one is about to disappear footer will disappear when classified together, I ask what is the reason? Xianxie

Reply:

The reply was deleted at the moderator 2012-05-24 17:04:40

Reply:
It is best to send the next code.
Reply:
You said that section of it! This is iOS provisions of the act. The purpose is to facilitate the users know when scrolling section in which the