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Fixed size of image grid

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This commit is contained in:
Selim Mustafaev 2020-12-23 18:58:15 +03:00
parent dba29aa2d7
commit 7b86f528b8
2 changed files with 21 additions and 4 deletions
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16
AutoCat/Views/ImageGrid.swift
View File

@ -30,9 +30,8 @@ class ImageCell: UICollectionViewCell {
func configure(with image: String) { func configure(with image: String) {
guard let url = URL(string: image) else { return } guard let url = URL(string: image) else { return }
print("=== Configure cell with url: \(image)")
self.imgView.kf.setImage(with: url, options: [ self.imgView.kf.setImage(with: url, options: [
.processor(DownsamplingImageProcessor(size: self.imgView.frame.size)), .processor(DownsamplingImageProcessor(size: self.frame.size)),
.scaleFactor(UIScreen.main.scale), .scaleFactor(UIScreen.main.scale),
.cacheOriginalImage .cacheOriginalImage
]) ])
@ -45,6 +44,7 @@ class ImageGrid: UICollectionView, UICollectionViewDataSource, UICollectionViewD
private var spacing: CGFloat = 0 private var spacing: CGFloat = 0
var selectionChanged: ((Int) -> Void)? var selectionChanged: ((Int) -> Void)?
var preferredMaxLayoutWidth: CGFloat = 0
required init?(coder: NSCoder) { required init?(coder: NSCoder) {
super.init(coder: coder) super.init(coder: coder)
@ -71,7 +71,17 @@ class ImageGrid: UICollectionView, UICollectionViewDataSource, UICollectionViewD
} }
override var intrinsicContentSize: CGSize { override var intrinsicContentSize: CGSize {
return self.collectionViewLayout.collectionViewContentSize let size = self.collectionViewLayout.collectionViewContentSize
if size == .zero && self.preferredMaxLayoutWidth != 0 {
let cellSize: CGFloat = (self.preferredMaxLayoutWidth - self.spacing*(CGFloat(self.columnsCount) - 1))/CGFloat(self.columnsCount)
let rows: Int = self.images.count/self.columnsCount + (self.images.count % self.columnsCount == 0 ? 0 : 1)
let height = cellSize*CGFloat(rows) + CGFloat(rows - 1)*self.spacing
print("intrinsicContentSize: \(CGSize(width: self.preferredMaxLayoutWidth, height: height))")
return CGSize(width: self.preferredMaxLayoutWidth, height: height)
}
print("intrinsicContentSize: \(size)")
return size
} }
func set(images: [String]) { func set(images: [String]) {

9
AutoCat/Views/eureka/ImageGridRow.swift
View File

@ -6,7 +6,7 @@ final class ImageGridCell: Cell<[String]>, CellType {
required init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) { required init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier) super.init(style: style, reuseIdentifier: reuseIdentifier)
self.grid = ImageGrid(columns: 3, spacing: 2) self.grid = ImageGrid(columns: 3, spacing: 2)
self.grid.translatesAutoresizingMaskIntoConstraints = false self.grid.translatesAutoresizingMaskIntoConstraints = false
self.contentView.addSubview(self.grid) self.contentView.addSubview(self.grid)
@ -16,12 +16,19 @@ final class ImageGridCell: Cell<[String]>, CellType {
self.grid.topAnchor.constraint(equalTo: self.contentView.layoutMarginsGuide.topAnchor), self.grid.topAnchor.constraint(equalTo: self.contentView.layoutMarginsGuide.topAnchor),
self.grid.bottomAnchor.constraint(equalTo: self.contentView.layoutMarginsGuide.bottomAnchor) self.grid.bottomAnchor.constraint(equalTo: self.contentView.layoutMarginsGuide.bottomAnchor)
]) ])
self.height = { UITableView.automaticDimension }
} }
required init?(coder aDecoder: NSCoder) { required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder) super.init(coder: aDecoder)
} }
override func systemLayoutSizeFitting(_ targetSize: CGSize, withHorizontalFittingPriority horizontalFittingPriority: UILayoutPriority,
verticalFittingPriority: UILayoutPriority) -> CGSize {
self.grid.preferredMaxLayoutWidth = self.bounds.size.width - self.contentView.layoutMargins.left - self.contentView.layoutMargins.right
return super.systemLayoutSizeFitting(targetSize, withHorizontalFittingPriority: horizontalFittingPriority, verticalFittingPriority: verticalFittingPriority)
}
override func setup() { override func setup() {
super.setup() super.setup()