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Shrinks AppCardCollectionViewCell height if there are no screenshots

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This commit is contained in:
Riley Testut
2023-10-19 17:18:48 -05:00
parent fd11278f03
commit f11cef5352
1 changed files with 22 additions and 8 deletions
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30
AltStore/Components/AppCardCollectionViewCell.swift
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@@ -27,9 +27,24 @@ class AppCardCollectionViewCell: UICollectionViewCell
private var screenshots: [AppScreenshot] = [] { private var screenshots: [AppScreenshot] = [] {
didSet { didSet {
self.dataSource.items = self.screenshots self.dataSource.items = self.screenshots
if self.screenshots.isEmpty
{
// No screenshots, so hide collection view.
self.collectionViewAspectRatioConstraint.isActive = false
self.stackView.layoutMargins.bottom = 0
}
else
{
// At least one screenshot, so show collection view.
self.collectionViewAspectRatioConstraint.isActive = true
self.stackView.layoutMargins.bottom = self.screenshotsCollectionView.directionalLayoutMargins.leading
}
} }
} }
private let collectionViewAspectRatioConstraint: NSLayoutConstraint
override init(frame: CGRect) override init(frame: CGRect)
{ {
self.bannerView = AppBannerView(frame: .zero) self.bannerView = AppBannerView(frame: .zero)
@@ -48,6 +63,12 @@ class AppCardCollectionViewCell: UICollectionViewCell
self.stackView.alignment = .fill self.stackView.alignment = .fill
self.stackView.distribution = .equalSpacing self.stackView.distribution = .equalSpacing
// Aspect ratio constraint to fit exactly 3 modern portrait iPhone screenshots side-by-side (with spacing).
let inset = 14.0 //TODO: Assign from bannerView's layoutMargins
let multiplier = (AppScreenshot.defaultAspectRatio.width * 3) / AppScreenshot.defaultAspectRatio.height
let spacing = (inset * 2) + (minimumItemSpacing * 2)
self.collectionViewAspectRatioConstraint = self.screenshotsCollectionView.widthAnchor.constraint(equalTo: self.screenshotsCollectionView.heightAnchor, multiplier: multiplier, constant: spacing)
super.init(frame: frame) super.init(frame: frame)
self.contentView.clipsToBounds = true self.contentView.clipsToBounds = true
@@ -70,20 +91,13 @@ class AppCardCollectionViewCell: UICollectionViewCell
self.screenshotsCollectionView.register(AppScreenshotCollectionViewCell.self, forCellWithReuseIdentifier: RSTCellContentGenericCellIdentifier) self.screenshotsCollectionView.register(AppScreenshotCollectionViewCell.self, forCellWithReuseIdentifier: RSTCellContentGenericCellIdentifier)
let inset = 14.0 //TODO: Assign from bannerView's layoutMargins
self.stackView.isLayoutMarginsRelativeArrangement = true self.stackView.isLayoutMarginsRelativeArrangement = true
self.stackView.layoutMargins.bottom = inset self.stackView.layoutMargins.bottom = inset
self.contentView.preservesSuperviewLayoutMargins = true self.contentView.preservesSuperviewLayoutMargins = true
self.screenshotsCollectionView.directionalLayoutMargins = NSDirectionalEdgeInsets(top: 0, leading: inset, bottom: 0, trailing: inset) self.screenshotsCollectionView.directionalLayoutMargins = NSDirectionalEdgeInsets(top: 0, leading: inset, bottom: 0, trailing: inset)
// Aspect ratio constraint to fit exactly 3 modern portrait iPhone screenshots side-by-side (with spacing).
let multiplier = (AppScreenshot.defaultAspectRatio.width * 3) / AppScreenshot.defaultAspectRatio.height
let spacing = (inset * 2) + (minimumItemSpacing * 2)
let aspectRatioConstraint = self.screenshotsCollectionView.widthAnchor.constraint(equalTo: self.screenshotsCollectionView.heightAnchor, multiplier: multiplier, constant: spacing)
NSLayoutConstraint.activate([ NSLayoutConstraint.activate([
aspectRatioConstraint,
self.bannerView.heightAnchor.constraint(equalToConstant: 88) self.bannerView.heightAnchor.constraint(equalToConstant: 88)
]) ])
} }