Has anyone ever had the problem that a UIScrollView, which gets moved by [UIScrollView setContentOffset:...] doesn't "remember" it's new position? It however does, if the user scrolls via touch-and-drag.
Symptoms: If the UIScrollView doesn't remember the new position, it "flips" back to the original position it last remembers (which is the position which has been used via touch-and-drag) whenever it's being touched.
Interesting:
- This only happens in 4.0 and didn't happen in 3.1
- This only happens if
pagingEnabled == YESis set
It turned out that the contentInsets would confuse the contentOffsets in iOS 4.0 ... must be a bug in the SDK?
来源：https://stackoverflow.com/questions/3501446/uiscrollview-doesnt-remember-the-position