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Large Image VC: Don't let image overlap top controls when zoomed out

This commit is contained in:
Shadowfacts 2019-06-14 15:27:17 -07:00
parent ea143ea0dd
commit bd8e16cacb
Signed by: shadowfacts
GPG Key ID: 83FB3304046BADA4
1 changed files with 5 additions and 2 deletions
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7
Tusker/Screens/Large Image/LargeImageViewController.swift
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@ -118,8 +118,11 @@ class LargeImageViewController: UIViewController, UIScrollViewDelegate {
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
let widthScale = view.bounds.size.width / imageView.bounds.width
let heightScale = view.bounds.size.height / imageView.bounds.height
// limit the image height to the safe area height, so the image doesn't overlap the top controls
// while zoomed all the way out
let maxHeight = view.bounds.height - view.safeAreaInsets.top - view.safeAreaInsets.bottom
let heightScale = maxHeight / imageView.bounds.height
let widthScale = view.bounds.width / imageView.bounds.width
let minScale = min(widthScale, heightScale)
scrollView.minimumZoomScale = minScale
scrollView.zoomScale = minScale