Threading in Swift Simply Explained

Using Grand Central Dispatch (GCD) to speed up your app

Photo by Oleg Magni on Unsplash

Threading in iOS can be difficult to understand if you’re coming from other platforms, or if you are a beginner at Swift. Here’s a few tips to get you off on the right foot with threading, by using GCD.

First a precursor, threading is all about managing how work is prioritized in your app. Making your code execute faster is great, but what matters more is how fast the user perceives your app to be.

Your goal as a developer is to prioritize anything that the user can see and interact with. It makes your app feel faster and snappier. Don’t make the user wait for something to load that they don’t notice or care about.