Regular expressions are a powerful tool for working with text, but it’s often a mystery how to use them in Swift.

How to get UIPresentationController to use Auto Layout (and other bugs fixes)

Reduce lag in view controller transitions by 75ms

Good performance is critical to delivering a good user experience, and iOS users often have high expectations of their apps. A slow and unresponsive app might make users give up on using your app or, worse, leave a bad rating.

A short intro to our tool for running iOS UI tests.

Rushing a project and no time to read explanation? Jump to the answer code Since iOS 11, the App Store app has adopted card UI like this : The card-like UI has rounded corner and a light drop shadow beneath it, how can we achieve it? Say we have a image

A complete guide of all the ways to pass data between view controllers, with specific examples, the best practices and the techniques to avoid.

There's a really simple way to read barcodes, QR codes and all sorts of machine readable code by using nothing more than AVFoundation.

I decided to publish common security flaws in note-taking apps with list of improvement suggestions (because security is complicated).

One way to make a code base easier to navigate, while still maintaining a solid overall structure, is to inline functionality whenever two pieces of code are heavily related. This week, let’s take a look at how that can be done using inline types and functions…

This post describes the goals, release process, and estimated schedule for Swift 5.1.

In the following we will show you how to setup a basic iOS and Android Kotlin Native project to demonstrate the following functionalities:

Learn how to design and build reusable user interface elements by using custom view subclasses from the UIKit framework in Swift.

Discover the secrets of UIKit's safe area and layout margins, essential for modern app design. Learn how to leverage the safe area to ensure optimal content visibility on various devices and master layout margins for effortless spacing between views. Dive…

When I first started iOS, it was iOS 8 at that time, I had a bug that took my nearly a day to figure out. The issue was that the status…

Today I want to talk about UIView styling. The common approach when we want to customize the display of native UI controls (for instance UIButton or UILabel) is to create a subclass that overrides a bunch of properties. That works well most of the time, but…

Discover the latest additions and updates to design guidance. Explore inspirational designs, videos, articles, and resources.

Motivation