Вы можете использовать collectionview для создания макета. Используйте некоторый цвет для цвета ячейки по умолчанию. И когда ячейка представления коллекции выбрана, вы меняете цвет на прозрачный. Когда все ячейки выбраны, выдается предупреждение.
class ViewControllerNew: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource {
let collectionView = CollectionView(frame: .zero, collectionViewLayout: UICollectionViewFlowLayout())
var arr = [Int]()
var deletedArr = [Int]()
var rowCount = 0
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .white
collectionView.backgroundColor = .white
collectionView.delegate = self
collectionView.dataSource = self
collectionView.translatesAutoresizingMaskIntoConstraints = false
collectionView.register(Cell1.self, forCellWithReuseIdentifier: "Cell1")
collectionView.isScrollEnabled = false
view.addSubview(collectionView)
collectionView.topAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.topAnchor).isActive = true
collectionView.leadingAnchor.constraint(equalTo: self.view.leadingAnchor).isActive = true
collectionView.trailingAnchor.constraint(equalTo: self.view.trailingAnchor).isActive = true
collectionView.bottomAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.bottomAnchor).isActive = true
if let layout = collectionView.collectionViewLayout as? UICollectionViewFlowLayout {
let itemSpacing: CGFloat = 5
let itemsInOneRow: CGFloat = 5
layout.sectionInset = UIEdgeInsets(top: itemSpacing, left: itemSpacing, bottom: itemSpacing, right: itemSpacing)
layout.minimumInteritemSpacing = itemSpacing
layout.minimumLineSpacing = itemSpacing
let cellWidth = (UIScreen.main.bounds.width - (itemSpacing * 2) - ((itemsInOneRow - 1) * itemSpacing)) / itemsInOneRow
let rowCount = UIScreen.main.bounds.height / cellWidth
let newRowCount = Int((UIScreen.main.bounds.height - (itemSpacing * 2) - ((rowCount - 1) * itemSpacing)) / cellWidth)
layout.itemSize = CGSize(width: cellWidth, height: cellWidth)
self.arr = Array(0..<newRowCount*Int(itemsInOneRow))
collectionView.reloadData()
}
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return arr.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell1", for: indexPath)
cell.backgroundColor = .red
cell.isUserInteractionEnabled = true
return cell
}
func updateCells(_ touches: Set<UITouch>) {
guard let location = touches.first?.location(in: collectionView),
let indexPath = collectionView.indexPathForItem(at: location),
let cell = collectionView.cellForItem(at: indexPath) else {
return
}
cell.backgroundColor = .clear
if !deletedArr.contains(indexPath.item) {
deletedArr.append(indexPath.item)
}
if deletedArr.count == arr.count {
let alert = UIAlertController(title: "Game Finished", message: nil, preferredStyle: .alert)
let okBtn = UIAlertAction(title: "Ok", style: .default) { action in
self.deletedArr.removeAll()
self.collectionView.reloadData()
}
alert.addAction(okBtn)
self.present(alert, animated: true, completion: nil)
}
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
updateCells(touches)
}
override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
updateCells(touches)
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
updateCells(touches)
}
}
class Cell1: UICollectionViewCell {
override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
return nil
}
}
class CollectionView: UICollectionView {
override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
return nil
}
}
