My UIScrollView won\'t scroll down. I don\'t know why. I already followed Apple documentation regarding to this issue.
@IBOutlet weak var scroller: UIScrollView!
You need to set the frame of your UIScrollView so that it is less than the contentsize. Otherwise, it won't scroll.
frame
UIScrollView
contentsize
Also, I would recommend that you add scroller.contentSize = CGSizeMake(400, 2300) to your viewDidLoad method.
scroller.contentSize = CGSizeMake(400, 2300)
viewDidLoad