Create UICollectionView in Swift Programmatically

In this Swift code example we will learn how to create UICollectionView in Swift Programmatically. The below Swift code example will cover

  • Create UICollectionView programmatically
  • Set UICollectionView layout UIEdgeInsets
  • Set UICollectionView item size(width and height)
  • Set UICollectionView background color
  • Set UICollectionView Item background color
  • Implement UICollectionView Delegate method didSelectItemAtIndexPath to handle an event when user taps on one of the collection view items
    import UIKit

class ViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {
    override func viewDidLoad() {

    override func viewWillAppear(animated: Bool) {
        let layout: UICollectionViewFlowLayout = UICollectionViewFlowLayout()
        layout.sectionInset = UIEdgeInsets(top: 20, left: 10, bottom: 10, right: 10)
        layout.itemSize = CGSize(width: 60, height: 60)
        let myCollectionView:UICollectionView = UICollectionView(frame: self.view.frame, collectionViewLayout: layout)
        myCollectionView.dataSource = self
        myCollectionView.delegate = self
        myCollectionView.registerClass(UICollectionViewCell.self, forCellWithReuseIdentifier: "MyCell")
        myCollectionView.backgroundColor = UIColor.whiteColor()
    func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return 100
    func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
        let myCell = collectionView.dequeueReusableCellWithReuseIdentifier("MyCell", forIndexPath: indexPath)
        myCell.backgroundColor = UIColor.blueColor()
        return myCell
    func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath)
        print("User tapped on item \(indexPath.row)")
    override func didReceiveMemoryWarning() {
        // Dispose of any resources that can be recreated.

Video Tutorial on How to Create UICollectionView Using Storyboard

Watch this video tutorial to learn more about UICollectionView. In this video tutorial you will learn:

  • How to create UICollectionView using Storyboard
  • Implement custom UICollectionViewCell
  • Load list of images by calling a server side PHP script which will return a JSON array of images
  • Display images in UIScrollView
  • When user taps on an image, open image in a separate view controller

UICollectionView example in Swift

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