Mobile Couch

It’s the final episode of Mobile Couch, so Jake MacMullin returns to the couch, and they discuss how they got started as developers, as well as how they feel about starting new projects.

Ben takes Jelly on a journey through his favourite points from the book Pragmatic Programming: From Journeyman to Master, which details points that you’ll want to learn if you want to be a better developer. Along the way they discuss everything from philosophy to buying dishwashers, and maybe even a little actual code here and there.

Jelly recounts his experience with interviewing for a developer position within a big tech company. He and Ben reveal a little insight into what the process is like, what you should know going in, and what you can take from the process to apply to the interviews at your own company.

Ben and Jelly run through a quick and dirty primary of Git, one of the most popular version control systems around today. Starting from the very basics, they run through all the things you need to know to use it in your day to day work, why you should be using some method of version control, and the clients they use to make things nice and easy to manage.

Once again, the Apple developer community has been host to scandal! Not a pair to leave this opportunity behind, Ben and Jelly discuss how developers can learn from this, looking at the mistakes that were made, how to avoid them, and what you need to remember when things go bad.

With Ben in London, Casey Liss rejoins Jelly on the couch to talk about leaving .Net behind for a career in the Apple ecosystem, his experience with RxSwift, and wrapping your brain around new things. Meanwhile, Jelly reflects on his recent GIFwrapepd update and his approach when migrating it from Objective-C to Swift.

How do you lay out your views? Ben and Jelly look over the different methods available on both iOS and Android, and compare their experiences with each. Together they uncover some of the oddities that can pop up in various circumstances, how to get around them, and which approach rules them all.

User notifications have had a big makeover in iOS 10, so Ben and Jelly walk through how notifications work on iOS. Along the way, they highlight some of the newer features available in the new framework, look at when you might choose local notifications over remote notifications, and discuss the two new extension points to use for customising notifications.

If you’re lucky, you’ll never need to work on an app that has to manage files, but just in case you ever do, Jelly’s got you covered with a basic overview of file management on iOS. He walks Ben through the basics, covering coordination of access to files between processes, reading parts of files, and displaying a localised version of a file path.

Dependency injection is a simple programming technique with a bit of a scary name, but it turns out that it’s excellent for highlighting the connections between classes within an app. Ben walks Jelly through the basics of using dependency injection, why singletons are bad, and places you might already be using this techique without even knowing it.

Jelly’s had a bit of a computer disaster (which he totally got from Ben), so they talk a little bit about mitigating disasters as both users and developers. Then they cover off a little bit of follow-up about monetising Messages apps, before discussing the fun and horrors of migrating your codebase to iOS 10.

Since the announcement in the WWDC keynote, Ben has been working on a couple of Messages apps, so he and Jelly go through all the ins and outs. Together they look at the super-easy Sticker pack apps, the more complex implementation details for custom apps, and even a few gotchas you might run into while developing.

With WWDC done and dusted for another year, Ben and Jelly discuss their experiences queueing for the keynote, attending side conferences, and getting the most out of the week. They then turn their attention to an quick overview some of the key things that Apple introduced for developers with iOS 10, including Siri and Messages Apps, and finally they pine for the thing they still wish they’d seen: improvements to Radar.

In the lead up to WWDC, Ben and Jelly take an early look at some of the changes coming to the Swift language this year with version 3, which like one of the biggest releases so far. With widespread changes in the wording of method names, improvements to how C APIs are handled, and a Swift version of Foundation, it’s going to be a big change to both your code, and how you read it.

Ben and Jelly turn their minds to this year’s WWDC, and spend some time talking about what they expect to come out of this year’s conference, as well as what they’re actually hoping for (there’s a difference!), including better stability in tooling and more transparency with errors.

What is good code, and how does one achieve it? Ben and Jelly spend some time working through a small project while considering the flaws, edge cases and potential shortcuts, in an effort to come up with ways to weed out bad code, while also improving the end result.

Both Ben and Jelly have worked from home for many years, so they explore the benefits and disadvantages of remote working. Together, they discuss the things you need to do to ensure stuff actually gets done, what your team can do to help you succeed, and why you’d even consider this in the first place.

Jelly walks Ben through the ins and outs of implementing In-App Purchases in your “freemium” or “paymium” apps. IAPs are deceptively annoying to get right, but Jelly covers everything, including you need to do in iTunes Connect, how the StoreKit framework works, and finally, how you validate the receipt to prevent piracy.

Many developers work with things like views and view controllers, but might not have any idea about how these things all fit together. Ben introduces Jelly to the Model-View-Controller pattern, and explains what each part of this concept is and how they come together to make an app work.

In any given project, you’ll find that there are a number of different “hats” that you have to wear, such as making the hard decisions, being a user, writing code, or designing assets. Ben and Jelly take look at some of them, discussing not only how they come into play, but also how some of the common misconceptions about them.