I have a scrollview with pagination. In viewDidLoad i check if the current orientation is landscape then i set its contentsize\'s height 440
if (UIDeviceOri
Here it is a problem in your code. Why you are setting the frame size like this?? You have only the screen size of 320px width. And when it changes to landscape, height will be only 320px. But you are setting the scroll height as 480px and it goes out of the screen and start to scroll diagonally.
self.scroll.frame = CGRectMake(0,0,480,480);
Instead of that frame size, change like this
self.scroll.frame = CGRectMake(0,0,480,320);
And you need to set the content size depend on the content you are having inside the scroll view in either orientation.