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How the iOS team at Just Eat built a scalable open-source solution to handle local and remote flags. Originally published on the Just Eat Engineering Blog. Overview At Just Eat we have experimentation at our heart, and it is very much dependent on feature flagging/toggling. If we may be so bold, here’s an analogy: feature […]
I was asked to guest on the iPhreaks podcast to discuss iOS accessibility. We talked about why accessibility is important, how you can improve it in your apps, and some of the changes iOS 13 and SwiftUI bring. unfortunatley iPhreaks don’t provide a transcript, but they do provide a comprehensive write-up on their site. Source […]
One of the most exciting announcements at WWDC this year was the introduction of platform-wide dark mode in iOS 13. During WWDC a group of enthusiastic iOS engineers and designers from Instagram’s design systems team banded together to begin plotting out what it would take to adopt dark mode in our app. This week’s update […]
Over the last few years, Instagram Direct has grown to be a core part of sharing content and experiences with your close friends on Instagram. This isn’t a privilege we take lightly; it’s incredibly important that we deliver each message as reliably and as quickly as possible. The Internet transfers data at the Speed of […]
How the iOS team at Just Eat built a scalable architecture to support navigation and deep linking. Originally published on the Just Eat Engineering Blog. In this article, we propose an architecture to implement a scalable solution to Deep Linking on iOS using an underlying Flow Controller-based architecture, all powered by a state machine and […]
Instagram recently launched Type Mode, a new way to post creative, dynamic text styles and backgrounds to Stories. Type Mode was an interesting challenge for us because it is the first time we were going to create a way for people to post Stories without photo or video components — and we wanted to make […]
iOSDevCamp Colorado was a couple of weeks ago and I did a presentation/demo on iOS app extensions. I wanted to focus on how to actually do things, so mostly I worked in Xcode rather than present from slides. But rather than paste code in as I went or (gasp!) try to do it live, I […]
Recently I’ve been working on some iOS 8 app extensions, and I’ve run into a few non-obvious details that might come in handy for anyone else in the same situation. Some of the following relates to bugs still in the system, and so will probably only be relevant for a limited time. Debugging: General The […]
If you’re writing an iOS app and you need to know the user’s current location, the answer is straightforward: use Core Location. That fires up device GPS (when available). Apple’s A-GPS combines this with things like local Wifi networks and IP addresses to work out the device’s location. All of this, of course, assuming that […]