Issue 186 – June 4th 2019

WWDC

WWDC by Sundell

If you’re unable to attend WWDC this week but are looking to keep track of the various going’s on, then make sure you check out this new site from @swiftbysundell . Posting regular updates, articles, interviews and other WWDC related material it’s a great way of keeping track of everything that’s going on and already has a bunch of great material. :+1: to John for this one. wwdcbysundell.com

Business

Intentional Subscriptions – Ideas for Better Subscriptions on iOS

Great article about subscriptions on iOS from @_DavidSmith which includes some well thought out ideas on how to reduce the opportunity for scams and abuse and improve the whole experience for users. I’d can definitely get behind Apple implementing almost all of these as I it needs to be clear what users are signing up for when they sign up for a subscription. Add in some of the tweaks suggested by @jcieplinski in this follow-up article and I think it’s a set of changes that could make a real difference. david-smith.org

Delisted Overnight – A Cautionary Tale for Indie iOS Developers

It’s every developers worst nightmare. One minute your app is flying high, ranking as the number one result in your category and then overnight it disappears from the app store search results. This was the situation facing @russshanahan this week and whilst this turned out to be a bug and things seem to be recovering, it’s a salutary lesson if your trying to make your living in the store – If humanly possible, don’t ever have all your eggs in one basket – you never know what is going to happen! russ.app

Code

Migrating paid app to free app with In-App Purchase

So you’ve had an app in the store for a while as a paid app but have decided now is the time to switch to a more freemium style approach. How do you go about making this delicate transition without alienating your existing users? @soulchildpls walks you through the process. fluffy.es

Promises in Swift for Beginners

Managing callbacks in your asynchronous code can be a pain, and you’re always risking dreaded retain cycles if you’re not careful. Learn how to simplify things with with this introduction to Futures and Promises from @tiborbodecs theswiftdev.com

Simplifying Communication Patterns with Closures in Swift

There are a whole host of object communication patterns in iOS including protocols, simple target/action callbacks, RxSwift observables, Notification Center and more. In this article, @onmyway133 takes a look at the different patters we have at our disposal and how you can simplify things through the use of closures. medium.com

Podcasts

WWDC Preview: A Conversation With Apple’s Former App Approval Chief

In this fascinating interview, @markgurman interviews former head of Apple’s App Store Review process @pbsIdentity who ran things for Apple between 2009 and 2016. Clearly things have likely changed a little since Phillip left given that app review times have dropped significantly in recent years but none-the-less, the interview provides some great insight into how the app review process works. bloomberg.com

Libraries

How to Save Images and Videos to Core Data Efficiently

With the ever-growing need to store larger and larger multimedia files on device, @V8tr has been doing some interesting experiments with Core Data to try to identify the most efficient way of storing image and video files locally. vadimbulavin.com

Other

The Future of Interaction

Althought Marzipan will inevitably bring huge changes over the coming months @chockenberry has been thinking about the longer-term and the increased complexity that the different interaction paradigms on different Apple platforms has introduced. Could the move to a more declarative style of programming that we’ve seen in recent years be our saviour? furbo.org