Error Handling in Swift iOS: How to Handle Common Errors in Your Code

Rashad Shirizada
6 min readJun 15, 2022
Photo by Elisa Ventur on Unsplash

Many of the most common errors in iOS are handled automatically by the Swift language, and many more can be handled automatically through libraries you choose to integrate into your projects. However, sometimes it’s necessary to handle an error yourself, which can be rather difficult if you don’t know how to do it properly or what types of errors you should be expecting to see in your code at any given time. In this article, I’ll go over some common error handling approaches in Swift, as well as some helpful functions provided by the Swift language that make error handling easier and more understandable in general.

From Crashes To Exceptions

When your app crashes, it’s a big deal. Crash logs can help you figure out what happened, but they only exist while your app is open. You don’t want users seeing crash logs on their device — they need you to get that problem fixed so they can use your app without problems. One way to make sure errors are corrected quickly is by using exceptions. If an error occurs, instead of showing a crash log, display a message saying something like Oops! Something went wrong and we weren’t able to process your request. Please try again later. In addition to letting you handle errors gracefully, exceptions also provide information about what caused them so you…

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