Singletons are not an anti-pattern, but they are an abused pattern. They're popular among beginners because they're convenient. Down the line they add complexity and cause maddening bugs. Let's start with the positive. Every so often, you have an object that should be represented

The worst question in software is, "When will it be done?" because it never correlates with, "When should we ship?" These questions involve guesswork, but a little science goes a long way. We'll define Done as, "When outstanding tickets reach zero." Graph

As you flesh out an app, the first place you dump behavior is the controller. As Colin Campbell said, "iOS architecture, where MVC stands for Massive View Controller". Say we build an app that displays recent popular news stories: override func viewWillAppear(animated:Bool) { super.viewWillAppear(animated) let

There are little details in app architecture that may not be obvious, but make a big difference over time. We'll start with modal view controllers, then step back for the larger lesson. Say you have a view controller that displays the user's profile. There's

If I offer you $50 today or $100 one year from now, you'll take the $50. Yet if I offer $50 in five years or $100 in six years, you'll pick $100, which seems irrational given the difference is still one year. Economists call this Hyperbolic

Every company comes up with the idea of writing a "shell app." By replacing native code with a web view you could: * Release new functionality outside a full app update * Implement a feature once and share it across platforms * If you come from web development, you can stick