CollectionViewController.swift

import UIKit

class CollectionViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {

    @IBOutlet weak var cv: UICollectionView!
    let arrayFotos = (1...14).map {
        UIImage(named: "\($0).jpg")
    }
    
    let cellIdentifier = "CollectionViewCell"
    let objects = ["Cat", "Dog", "Fish","Cat", "Dog", "Fish","Cat", "Dog", "Fish","Cat", "Dog", "Fish","Cat", "Dog"]
    
    
    override func viewDidLoad() {
        super.viewDidLoad()
        cv.register(UINib(nibName:"CollectionViewCell", bundle: nil), forCellWithReuseIdentifier: cellIdentifier)
       
        
        
      
        cv.backgroundColor = .blue
        
        cv.delegate = self
        cv.dataSource = self
        

    }

  
    override func viewWillAppear(_ animated: Bool) {
        
    }
    func numberOfSections(in collectionView: UICollectionView) -> Int {
        return 1
        
    }

    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return objects.count
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = cv.dequeueReusableCell(withReuseIdentifier: cellIdentifier, for: indexPath) as! CollectionViewCell
        
        cell.backgroundColor = .white
        cell.imageView.image = arrayFotos[indexPath.row]
        
        cell.titleLabel.text = objects[indexPath.row]
        cell.descriptionLabel.text = "teste"
        
        
        return cell
    
    }
    
    
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
        let itemSize = view.bounds.width - 36
        
        
        return CGSize(width: itemSize, height: 200)
    }
    
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
      
        
    }
    
}