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[AltStore] Refactors BrowseViewController screenshot size logic

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This commit is contained in:
Riley Testut
2019-07-30 12:41:50 -07:00
parent 52cb01c6c7
commit 0efa3c4694
7 changed files with 248 additions and 159 deletions
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27
AltStore/Browse/BrowseCollectionViewCell.swift
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@@ -18,22 +18,24 @@ import Roxas
}
}
private lazy var dataSource = self.makeDataSource()
private lazy var imageSizes = [NSString: CGSize]()
@IBOutlet var nameLabel: UILabel!
@IBOutlet var developerLabel: UILabel!
@IBOutlet var appIconImageView: UIImageView!
@IBOutlet var actionButton: PillButton!
@IBOutlet var subtitleLabel: UILabel!
@IBOutlet var screenshotsCollectionView: UICollectionView!
@IBOutlet private var screenshotsContentView: UIView!
@IBOutlet private var screenshotsCollectionView: UICollectionView!
override func awakeFromNib()
{
super.awakeFromNib()
// Must be registered programmatically, not in BrowseCollectionViewCell.xib, or else it'll throw an exception 🤷‍♂️.
self.screenshotsCollectionView.register(ScreenshotCollectionViewCell.self, forCellWithReuseIdentifier: RSTCellContentGenericCellIdentifier)
self.screenshotsCollectionView.delegate = self
self.screenshotsCollectionView.dataSource = self.dataSource
self.screenshotsCollectionView.prefetchDataSource = self.dataSource
@@ -59,6 +61,7 @@ private extension BrowseCollectionViewCell
let dataSource = RSTArrayCollectionViewPrefetchingDataSource<NSString, UIImage>(items: [])
dataSource.cellConfigurationHandler = { (cell, screenshot, indexPath) in
let cell = cell as! ScreenshotCollectionViewCell
cell.imageView.image = nil
cell.imageView.isIndicatingActivity = true
}
dataSource.prefetchHandler = { (imageName, indexPath, completion) in
@@ -87,15 +90,13 @@ extension BrowseCollectionViewCell: UICollectionViewDelegateFlowLayout
{
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize
{
let imageURL = self.dataSource.item(at: indexPath)
let dimensions = self.imageSizes[imageURL] ?? UIScreen.main.nativeBounds.size
let aspectRatio = dimensions.width / dimensions.height
let height = self.screenshotsCollectionView.bounds.height
let width = (self.screenshotsCollectionView.bounds.height * aspectRatio).rounded(.down)
let size = CGSize(width: width, height: height)
// Assuming 9.0 / 16.0 ratio for now.
let aspectRatio: CGFloat = 9.0 / 16.0
let itemHeight = collectionView.bounds.height
let itemWidth = itemHeight * aspectRatio
let size = CGSize(width: itemWidth.rounded(.down), height: itemHeight.rounded(.down))
return size
}
}