How to implement UICollectionView tutorial

UIKit UICollectionView

Posted on 05 May 2023 . 2 min read


UITableView is used to display lists of data, but UICollectionView is used to present complex and customized data. According to the requirements of your app, you may create a simple scrolling grid or an advanced custom layout using UICollectionViewController.


This article will teach you the fundamental building pieces for displaying collection views. In this article, we won't get too theoretical; instead, you can visit the official website to learn more about UICollectionViewController.


Getting Started


Let's begin by starting a new project. Go to the main storyboard after creating the project and remove the default view controller.


Click the delete button after selecting default view controller.


Generic placeholder image

Next, drag the collection view controller from the objects library into the storyboard.



Generic placeholder image


To set up navigation to the controller, choose the collection view controller and go to Editor -> Embed In -> Navigation controller.



Generic placeholder image

To set up a view controller as a root view controller, choose controller and mark Initial view controller in the Attributes inspector.



Generic placeholder image

Set the reusable view identifier to FlickrImageCell in the Attributes inspector after selecting a single cell.



Generic placeholder image

Let's create a new subclass to provide the UICollectionViewController more capabilities.

Go to File -> New -> File. Choose iOS -> Source -> Cocoa Touch Class and create class for subclass of UICollectionViewController and click Next.



Generic placeholder image

Add the class FlickrViewController to the collection view controller in the identity inspector.



Generic placeholder image

Let's create subclass of UICollectionViewCell for FlickrImageCell. Go to File ▸ New ▸ File. Choose iOS ▸ Source ▸ Cocoa Touch Class and create class for subclass of UICollectionViewCell and click Next.



Generic placeholder image

In the identity inspector add class FlickrImageViewCell to collection view cell.



Generic placeholder image

Congratulation🎉 you have successfully created collection view controller to display data. Now it's time to hit an API and fetch data from Flickr API.


Don’t hesitate to contact me if you have any questions or queries. Follow me on twitter @gurjitpt for any updates.

Thanks!


More articles:


Share this article



Written By

Generic placeholder image

Gurjit Singh

I’m Computer Science graduate and an iOS Engineer who writes about Swift and iOS development. Follow me for more updates:


Discover articles by topics

SwiftUI Class Struct Networking XCode NSCache Enum Optionals Property Observers Closures Guard Reviews StoreKit App Store Algorithms Testing Operators Protocol Extensions Weak Unowned SwiftData WWDC23 GCD API Admob SwiftLint Lottie Foreach Objective-C UIKit NavigationSplitView

Related Articles


Integrating SwiftUI with UIKit Using UIHostingController

With the introduction of SwiftUI, Apple has provided developers with a modern way to build user interfaces across all Apple platforms....

2024-07-09 . 3 min read     UIHostingController

Read More »

Deep Dive into Autorelease Pools in Swift

In the realm of software development, memory management plays a crucial role in ensuring the efficient allocation and deallocation of memory...

2024-01-28 . 4 min read     Swift Autorelease

Read More »

Swift enum equatable: with or without associated values

Swift enums provide a powerful way to model a set of related values. Enums can be equipped with associated values, allowing them to represen...

2024-01-24 . 3 min read     Swift Enums

Read More »

How to create Date Picker in SwiftUI

Use a DatePicker when creating a view that enables users to choose both a calendar date and, if needed, a specific time.In SwiftUI, you can ...

2024-01-16 . 2 min read     SwiftUI DatePicker

Read More »

Getting started with Swiftlint to enforce Swift style

SwiftLint is a tool that ensures Swift code adheres to defined style guidelines. It automates code review by identifying and suggesting impr...

2023-12-29 . 4 min read     Swift SwiftLint

Read More »

How to use Lottie animation in SwiftUI

Lottie is a fantastic tool for incorporating high-quality animations into your SwiftUI projects. There are several ways to add Lottie to pro...

2023-12-13 . 2 min read     SwiftUI Lottie

Read More »