William Boles
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Ambiguous Decoding

January 23, 2023

Dealing with a JSON network response in iOS projects used to be a pain - you would have to manually parse the response, extract the required values, ignore those that weren't needed, and build your model instances 🤮. Then came along `Codable` and all that changed.…

Finding hope in custom alerts

May 26, 2020

UIAlertController alerts form the backbone of a lot of the interactions between our users and our apps. While there have been some changes to alerts over the years, very little has changed about their appearance or our ability to customise that appearance - this causes for app designers pain 😱…

Alert queuing with windows

November 06, 2019

Being British, queuing is essential to me. I take every opportunity I can get to queue: posting a package ✅, 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 about queuing 😔…

Discovering what's out there

April 08, 2019

Many of us feel nervous when meeting a group of people for the first time. What are the dynamics of the group, what are the in-jokes, will I find common ground with someone - are just a few questions that can plague you…

Progressive Core Data Migrations

February 04, 2019

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 is, inevitably one of those changes will be a breaking change…

Keeping dates local

December 11, 2018

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…

Sneaky date formatters exposing more than you think

October 29, 2018

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…

Building a networking layer with operations

October 03, 2018

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…

Keeping things going when the user leaves

July 15, 2018

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 could do…

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