Article 1: UI Design Dos and Don’ts (Apple Developer)
In typical Apple style, this guide offers simple advice in an elegant way. All of the topics discussed here are known by every good designer. The real innovation lies in how pure Apple’s implementations of these fundamentals are. Each example is effective and easily understandable. It’s also helpful to have some of the more firm guidelines to use as rules of thumb, such as “text should be at least 11 points” and click targets should be “at least 44 points x 44 points”.
Article 2: iOS 13 Design Guidelines: An Illustrated Guide (Erik Kennedy)
In this article, developer Erik Kennedy details the methods and implementations that make the iOS examples from the previous article looks so graceful. The most interesting part of this article to me was the “squircle” icon. The generally idea of this is that instead of using a simple rounded rectangle, Apple updated their icon shape to be slightly more gently curved into the straight parts of the square. Looking at a rounded rectangle vs. a squircle, it’s difficult to tell whether the squircle looks better. I will say though that when designing icons in the past, something about the rounded rectangle has always felt a bit odd to me, as if I was missing some crucial element that would make it feel like iOS.
Another interesting piece from this article is the hierarchy of nav bar “rows”. This refers to a series of four rows starting from the top of the device that all have a clearly defined functionality and presentation in iOS. The purposes of each of these objects, and the ways they respond to user interaction are fascinating.







