Reflection is a common programming language feature that enables us to inspect, and work with, the members of a type — dynamically, at runtime. That may seem at odds with Swift’s heavy focus on compile-time validation — but this week, let’s take a look at…

The release of Swift 5 is coming with Xcode 10.2 and brings some updates to the String API in the standard library. Here’s a look at the new character properties that allow you to test for a number of useful Unicode properties.

Strings are everywhere. We all use strings everyday. In Swift `String` is a very powerful type. One of the features it had available since the beginning is the string interpolation. With it we can embed any Swift expression inside the string literal instead…

With test driven development you can write high quality software in small shippable steps. Here's how to get started.

There are plenty of discussions on the Internet about using third-party dependencies in your apps. The first part of developers suggest ignoring the usage of libraries and write all the code yourself. The second part recommends using third-party dependencies…

How to write safer localization code and save time by getting less distracted from your actual code writing task in Xcode.

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)

Today we will implement a simple app in Model-View-ViewModel with the help of RxSwift and RxCocoa. Let’s get started!

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.