Being British, queuing is essential to me. I take every opportunity I can get to queue: posting a package ✅, paying for my groceries ✅, fleeing a burning building ✅, etc. So every time I need to present a sequence of alerts, I come up against the uncomfortable truth that UIAlertController doesn't care…
There are very few certainties in app development, but one is that once your app is released it will change in unexpected ways. And no matter how flexible your architecture it is inevitably one of those changes will be a breaking change. Perhaps the most important breaking changes involve the…
In our day-to-day life, dates are pretty straight forward - we read them all the time, make plans around them, and share them with other people. Apart from the occasional missed birthday party all of these date-based tasks go surprisingly smoothly. Which is remarkable when you stop to think how…
Ask any iOS developer about DateFormatter and one of the first things you will hear is that creating a DateFormatter instance is an expensive operation. The second thing you will hear is that after creating one you need to cache it. In this post, I want to look at how…
Networking is central to how most apps add value to their users which is why significant effort has been put into creating an easy to use networking layer by both Apple and the open-source community. When iOS was first released, NSURLConnection was the native networking suite it shipped with. However…
In the past iOS was always about living in the moment - totally focused on whatever the user was attempting to do. This approach was good news for users as it allowed for a very responsive user experience on performance constrained devices however as app developers it limited what we…
GitHub is a wonderful development resource that is now widely used within the iOS community. I use it to host my personal projects and increasingly the clients that I work with also use it. For a number of years, I used the one account across both personal and client projects…
Recently, I've been experiencing the iOS equivalent of Leonardo Dicaprio's Inception - putting a collection view inside a collection view. When exploring possible solutions I stumbled upon a very informative article by Soroush Khanlou and his suggestion that the best way to implement a collection view inside a collection view…
Core Data and Unit Testing haven't always been the best of friends. Like two members of the same friend group who don't really know each other but really like their UIKit friend, Core Data and Unit Testing have in fact discovered that they have a lot in common and have…