Issue 368

7^th September 2018

Written by Dave Verwer

Comment

I hope you’ve all been saving your pennies this year, next week is shaping up to be an expensive one! 💸

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News

A quick reminder from Apple that as of next month, you’ll need to have an explicit privacy policy for every app submission or update. Don’t say they didn’t warn you!

The try! Swift conference in New York this week hosted an announcement from the Swift Server work group about their plans, and here’s Ted Kremenek with a quick summary. It’s also worth checking out the Recommended Server Libraries section of the server page on Swift.org for a description of what this group is aiming for.

Tools

Looks like this has been around for a while but was recently extracted into it’s own repository on GitHub.

SwiftSyntax is a set of Swift bindings for the libSyntax library. It allows for Swift tools to parse, inspect, generate, and transform Swift source code.

The example in the readme finds every integer literal in a Swift file and increments it, all in ~30 lines of code. Please go forth and build interesting things with this! 😀

Code

I’ve been a fan of returning early throughout my entire programming career, so I was pleased to see that Swift seems to encourage it with certain language features such as guard. Oh, and if you’re returning early, don’t forget defer can also be your friend.

Have you ever overridden hitTest(_:with:) on UIView? My guess is that you probably have not. Let’s go on a journey with Soroush Khanlou, shall we? 🚗

The table view data source delegate model is great for efficiency when hundreds of the same kind of cells are being used, but when you have lots of different types of cells managing the complexity of your table view controller can become challenging. This declarative style library from Yosuke Ishikawa isn’t the first time I’ve seen a declarative table view library, but it’s still interesting.

Should Swift protocols allow access control on their properties? Olivier Halligon puts the case forward that they should.

macOS Development

Daniel Jalkut with an interesting investigation into whether Mojave Quick Actions might one day be able to be exposed by a fully native app as well as by Automator. There’s nothing official yet but what he found shows promise for the future.

Design

The design lab at WWDC is one of the most valuable services available during the conference, but of course we never get to see what gets discussed in those little private booths. In this article Luke Freeman doesn’t exactly show what went on in the design lab at RWDevCon, but instead looks at some common lessons learned.

The stand out piece of information in this article from Nick Babich is that the top reason for people uninstalling an app was annoying notifications. Are you being annoying with your notifications? 🚨

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And finally...

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