My pictures wont show when I build and run uicollection view - swift

Question

import UIKit
class HomePageCell: UICollectionViewCell {
#IBOutlet private weak var containerView: UIView!
#IBOutlet weak var photos: UIImageView!
#IBOutlet weak var songname: UILabel!
#IBOutlet weak var songmaker: UILabel!
//#IBOutlet weak var pfppic: UIImageView!
#IBOutlet weak var viewcount: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
containerView.layer.cornerRadius = 6
containerView.layer.masksToBounds = true
}
var photo: Photo? {
didSet {
if let photo = photo {
photos.image = photo.image
songname.text = photo.name
songmaker.text = photo.makername
viewcount.text = photo.likecount
}
}
}
override func prepareForReuse() {
super.prepareForReuse()
self.photos.image = nil
}
}
import UIKit
protocol PinterestLayoutDelegate: AnyObject {
func collectionView(
_ collectionView: UICollectionView,
heightForPhotoAtIndexPath indexPath: IndexPath) -> CGFloat
}
class PinterestLayout: UICollectionViewLayout {
// 1
weak var delegate: PinterestLayoutDelegate?
// 2
private let numberOfColumns = 2
private let cellPadding: CGFloat = 6
// 3
private var cache: [UICollectionViewLayoutAttributes] = []
// 4
private var contentHeight: CGFloat = 0
private var contentWidth: CGFloat {
guard let collectionView = collectionView else {
return 0
}
let insets = collectionView.contentInset
return collectionView.bounds.width - (insets.left + insets.right)
}
// 5
override var collectionViewContentSize: CGSize {
return CGSize(width: contentWidth, height: contentHeight)
}
override func prepare() {
// 1
guard
cache.isEmpty,
let collectionView = collectionView
else {
return
}
// 2
let columnWidth = contentWidth / CGFloat(numberOfColumns)
var xOffset: [CGFloat] = []
for column in 0..<numberOfColumns {
xOffset.append(CGFloat(column) * columnWidth)
}
var column = 0
var yOffset: [CGFloat] = .init(repeating: 0, count: numberOfColumns)
// 3
for item in 0..<collectionView.numberOfItems(inSection: 0) {
let indexPath = IndexPath(item: item, section: 0)
// 4
let photoHeight = delegate?.collectionView(
collectionView,
heightForPhotoAtIndexPath: indexPath) ?? 180
let height = cellPadding * 2 + photoHeight
let frame = CGRect(x: xOffset[column],
y: yOffset[column],
width: columnWidth,
height: height)
let insetFrame = frame.insetBy(dx: cellPadding, dy: cellPadding)
// 5
let attributes = UICollectionViewLayoutAttributes(forCellWith: indexPath)
attributes.frame = insetFrame
cache.append(attributes)
// 6
contentHeight = max(contentHeight, frame.maxY)
yOffset[column] = yOffset[column] + height
column = column < (numberOfColumns - 1) ? (column + 1) : 0
}
}
override func layoutAttributesForElements(in rect: CGRect)
-> [UICollectionViewLayoutAttributes]? {
var visibleLayoutAttributes: [UICollectionViewLayoutAttributes] = []
// Loop through the cache and look for items in the rect
for attributes in cache {
if attributes.frame.intersects(rect) {
visibleLayoutAttributes.append(attributes)
}
}
return visibleLayoutAttributes
}
override func layoutAttributesForItem(at indexPath: IndexPath)
-> UICollectionViewLayoutAttributes? {
return cache[indexPath.item]
}
}
extension HomePageViewController: PinterestLayoutDelegate {
func collectionView(
_ collectionView: UICollectionView,
heightForPhotoAtIndexPath indexPath:IndexPath) -> CGFloat {
return photos[indexPath.item].image.size.height
}
}
import UIKit
struct Photo {
var image: UIImage
var name: String
var makername: String
var likecount: String
init(image: UIImage, name: String, makername: String, likecount: String) {
self.image = image
self.name = name
self.makername = makername
self.likecount = likecount
}
init?(dictionary: [String: String]) {
guard
let name = dictionary["Name"],
let makername = dictionary["Makername"],
let photo = dictionary["Photo"],
let likecount = dictionary["Likecount"],
let image = UIImage(named: photo)
else {
return nil
}
self.init(image: image, name: name, makername: makername, likecount: likecount)
}
static func allPhotos() -> [Photo] {
var photos: [Photo] = []
guard
let URL = Bundle.main.url(forResource: "Photos", withExtension: "plist"),
let photosFromPlist = NSArray(contentsOf: URL) as? [[String:String]]
else {
return photos
}
for dictionary in photosFromPlist {
if let photo = Photo(dictionary: dictionary) {
photos.append(photo)
}
}
return photos
}
}
import UIKit
final class HomePageViewController: UICollectionViewController {
// MARK: - Properties
var photos = Photo.allPhotos()
override var preferredStatusBarStyle: UIStatusBarStyle {
return .lightContent
}
override func viewDidLoad() {
super.viewDidLoad()
if let layout = collectionView?.collectionViewLayout as? PinterestLayout {
layout.delegate = self
}
self.collectionView.backgroundColor = .white
self.collectionView.dataSource = self
self.collectionView.delegate = self
let iconImage = UIImage(named: "name")
let imageView = UIImageView(image: iconImage)
self.navigationItem.titleView = imageView
}
private let sectionInsets2 = UIEdgeInsets(
top: 50.0,
left: 20.0,
bottom: 50.0,
right: 20.0)
private let itemsPerRow: CGFloat = 1
private let itemsPerRow1: CGFloat = 1
private let itemsPerRow2: CGFloat = 2
// MARK: - Private
override func numberOfSections(in collectionView: UICollectionView) -> Int {
return 3
}
override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
if section == 0 {
return 1
} else if section == 1 {
return 1
} else {
return photos.count
}
}
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
if indexPath.section == 0 {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "HomePageHeaderCell", for: indexPath) as! HomePageHeaderCell
return cell
} else if indexPath.section == 1 {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "HomePageProfileBar", for: indexPath) as! HomePageProfileBar
return cell
} else if indexPath.section == 2 {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "HomePageCell", for: indexPath) as! HomePageCell
cell.photo = photos[indexPath.item]
//cell.pfppic.image = UIImage(named: "pfppic")
//cell.pfppic.layer.cornerRadius = 15.0
return cell
}
return UICollectionViewCell()
}
}
extension HomePageViewController: UICollectionViewDelegateFlowLayout {
// 1
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
// 2H
if indexPath.section == 0 {
let paddingSpace = 0 * (itemsPerRow + 1)
let availableWidth = view.frame.width - paddingSpace
let widthPerItem = availableWidth / itemsPerRow
return CGSize(width: widthPerItem, height: 50)
} else if indexPath.section == 1 {
let paddingSpace1 = 0 * (itemsPerRow1 + 1)
let availableWidth1 = view.frame.width - paddingSpace1
let widthPerItem1 = availableWidth1 / itemsPerRow1
return CGSize(width: widthPerItem1, height: 100)
} else {
let paddingSpace2 = sectionInsets2.left * (itemsPerRow2 + 1)
let availableWidth2 = view.frame.width - paddingSpace2
let widthPerItem2 = availableWidth2 / itemsPerRow2
return CGSize(width: widthPerItem2, height: widthPerItem2)
}
}
// 3
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets {
return sectionInsets2
}
// 4
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
return sectionInsets2.left
}
}
I have the array built and I don't know why any pictures won't show