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Fix tall gallery content being inset on the bottom edge

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This commit is contained in:
Shadowfacts 2025-02-04 18:49:11 -05:00
parent da4787946d
commit 4fb7cacf31
1 changed files with 15 additions and 1 deletions
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16
Packages/GalleryVC/Sources/GalleryVC/GalleryItemViewController.swift
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@ -228,6 +228,10 @@ class GalleryItemViewController: UIViewController {
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillUpdate), name: UIResponder.keyboardWillShowNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillUpdate), name: UIResponder.keyboardWillHideNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillUpdate), name: UIResponder.keyboardWillChangeFrameNotification, object: nil)
if #available(iOS 17.0, *) {
view.keyboardLayoutGuide.usesBottomSafeArea = false
}
}
@objc private func keyboardWillUpdate() {
@ -354,7 +358,17 @@ class GalleryItemViewController: UIViewController {
return
}
let heightScale = (view.bounds.height - view.keyboardLayoutGuide.layoutFrame.height) / content.contentSize.height
// Post-iOS 17, we can ask the keyboard layout guide to ignore the bottom safe area.
// Pre, we have to do that ourselves.
let keyboardHeight: CGFloat
if #available(iOS 17.0, *) {
keyboardHeight = view.keyboardLayoutGuide.layoutFrame.height
} else {
let bottomSafeArea = view.bounds.height - view.safeAreaLayoutGuide.layoutFrame.maxY
let rawKeyboardHeight = view.keyboardLayoutGuide.layoutFrame.height
keyboardHeight = abs(rawKeyboardHeight - bottomSafeArea) < 1 ? 0 : rawKeyboardHeight
}
let heightScale = (view.bounds.height - keyboardHeight) / content.contentSize.height
let widthScale = view.bounds.width / content.contentSize.width
let minScale = min(widthScale, heightScale)
let maxScale = minScale >= 1 ? minScale + 2 : 2