OrchardNest

Let’s talk about closure-based delegation, retain cycles and genericsRead a 2020 follow-up to this story here: No more [weak self], or the weird new future of delegationOkay, so today’s post is about delegation and how we can make it...

You should not treat every piece of data the same way. Here’s whyAlright, no additional introductions this time — I’ll just cut straight to the point:Only, only request a data in a synchronous manner if it’s coming directly...

Folder of your iOS app — friendly and strongly-typedEach one of your iOS apps has an associated container with it, where you, as a developer, can store basically anything you need. This is often referred to as a “sandbox”. Inside this...

Sometimes good coding practices lead to good UXWhat happened?Technically, today nothing stops you as a developer from unintentionally or accidentally making irreversible changes (e.g. deleting user data) without confirmation from the user....

Short story of “composition over inheritance” (including generics, yay!)Disclaimer: this technique is relevant only if you create your layouts programmatically (without Interface Builder and Storyboards). If you want to take a deep look at...

Type safe time calculations for SwiftIn Cocoa, TimeInterval (ex NSTimeInterval) is the only thing that defines time. But, actually, it’s just a typealias for Double, and so it doesn’t have any descriptive meaning. Just a number. It’s not...

Introducing Shallows — a reusable, easy-to-use caching libraryI think you would agree that sometimes in iOS things that should be easy are made hard. Okay, not hard, but cumbersome, unintuitive, and absolutely no fun.One of the good...

NSCache is an amazing Cocoa API which is often overlooked by the developers. NSHipster has an amazing article on it, so I’ll go straight to business.In Swift 3, NSCache is a generic type. But it doesn’t work as a regular Dictionary. In...

Set and animate multiple placeholders on UITextFieldPlaceholder is a powerful concept with a long history — it’s easily recognizable by users, has a strict, reasonable meaning and gives the developer an easy way to hint...