There have been many attempts to solve the problem of downloading, caching and displaying remote images in iOS apps over the years. This week, Twitter open sourced their solution with the Twitter Image Pipeline. As you'd expect, this looks to be very comprehensive and if you're doing lots of image fetching, it's certainly worth a look.
If you've ever done any macOS development you'll be familiar with
nextKeyView which lets the app define the "tab order" of fields in a view. This library aims to do something similar, but for iOS and with a UI that lives on the input accessory view. Probably best explained with this GIF from the readme. Could be really useful if you have a lot of form/data entry in your app.
Ever found the String class ... lacking? Arthur Sabintsev has put together an extension library which already includes several useful utilities, with more planned for the future. Oh and it's all pure Swift with no dependence on Foundation so it'll all work server side too. 🚀
Ever wanted to use Nimble unit tests inside a Playground? Then Spry will be what you're looking for. It has the same syntax as Nimble so you can simply move your tests across to your main project once you're done experimenting.