view placed differently on iphone and ipad - ios

Question

i have built an app that allows the user to take their picture with a selection of glasses overlaid. it is working exactly how i want it on both an ipad and ipad mini but on the iphone the position in relation the the scroll view is wrong (see Images).
func setupPages(){
pageImages = [
UIImage(named: "glasses_one")!,
UIImage(named: "glasses_two")!,
UIImage(named: "glasses_three")!,
UIImage(named: "glasses_four")!,
UIImage(named: "glasses_five")!,
UIImage(named: "glasses_six")!
]
let pageCount = pageImages.count
for _ in 0..<pageCount {
pageViews.append(nil)
}
print(pageViews.count)
let pagesScrollViewSize = scrollView.frame.size
scrollView.contentSize = CGSize(width: scrollWidth * CGFloat(pageImages.count),
height: pagesScrollViewSize.height)
scrollView.backgroundColor = UIColor.blueColor()
loadVisiblePages()
}
func loadVisiblePages() {
let pageWidth = scrollView.frame.size.width
page = Int(floor((scrollView.contentOffset.x * 2.0 + pageWidth) / (pageWidth * 2.0)))
print(page)
pageControl.currentPage = page
for index in 0...5 {
//print(" -- Index = \(index)")
loadPage(index)
}
}
func loadPage(page: Int) {
if page < 0 || page >= pageImages.count {
// If it's outside the range of what you have to display, then do nothing
return
}
// 1
if let pageView = pageViews[page] {
print(pageView.description)
// Do nothing. The view is already loaded.
} else {
// 2
var frame = scrollView.bounds
frame.origin.x = scrollWidth * CGFloat(page)
frame.origin.y = 0.0
frame.size.width = scrollWidth
// 3
let newPageView = UIImageView(image: pageImages[page])
newPageView.contentMode = .ScaleAspectFit
newPageView.frame = frame
newPageView.clipsToBounds = false
scrollView.addSubview(newPageView)
// 4
pageViews[page] = newPageView
}
}
Ipad
Iphone

Answer 1

I think your issue is you need to add a constraint to center you image vertically. Or you could also solve this by making the frame for your "glasses frame" A set width and height. Smaller screens will have less space around it but will still be in the middle.