Amro's Blog

Xcode 9 includes a new build system that can substantially improve build times. The new build system is more strict about build issues, but some of its diagnostic output can be difficult to reason about. One difficult to debug error is “Dependency cycle between targets,” which may appear during incremental builds where you may not […]

I’ve spent a bit of time with notification extensions in iOS 10 and they’re pretty great. If you’re not familiar with notification extensions, check out Apple’s Introduction to Notifications talk before reading this post. Anywho, notification extensions improve your app’s notification experience giving you a chance to mutate notification payloads, download and display media, and […]

I’m republishing this article here so I can reference it later. I recently needed a way to perform an unknown number of asynchronous http requests and wait until they were all done before proceeding. dispatch_groups are a neat feature of Grand Central Dispatch (GCD) that made this easy to do. There are a couple of […]