Function Naming in Swift
In this article, we will face a question that we should always ask ourselves when writing a function: How should I name this function? Although this question looks simple, getting it answered properly determines a crucial aspect...
Advanced Unit Testing in Swift Using Swinject, Quick and Nimble
Do you want to build a car (Testable Architecture) that can run fast (less compile time), save petrol (repeated code) and can be easily learnt (readable) & driven (picked up) by any licensed driver? Then you have come to the...
How to Use Xcode Instrument to Optimize Your Swift Code
I still run across curmudgeons who flat out reject techniques like object-oriented programming (especially inheritance and polymorphism), protocols and protocol-oriented programming (especially composition), generics, and...
An Introduction to Operator Overloading in Swift
Operator overloading is one of the most powerful features of any computer programming language, so Apple decided to make it available for development in Swift. However, with great power comes great responsibility. You can easily...
Building a Fitness App Using HealthKit to Track Walking Distance
According to the news, health and fitness are more important today than at any point in history. It’s funny, though, as I seem to remember the news telling me the same thing a couple of days ago. Maybe it’s just a feeling that...
Swift Tutorial: Building an iOS Chat App Using Socket.IO
iOS apps exist in millions out there, and most of them communicate with servers to exchange data. In their majority, the server implements and provides RESTful APIs that apps can use for the communication. When an app needs to...
Core Image Introduction: Applying Image Filters to Photos
Core Image is a very powerful framework that’s included in iOS and OS X. As the name suggests, it allows developers to filter images in their apps. On iOS, which is the focus of this article, Core Image supplies 90+...
Introduction to Firebase: Building a Simple Social App in Swift
In this day and age, it is practically impossible to build a fully self-contained app that users will really like. As such, iOS developers are reaching out beyond the tools and resources provided by Apple for access to data and...
A Beginner’s Guide to Push Notifications in Swift
“Push Notifications? Ohh, no!”. Yes, that’s the first thing that was coming to my mind when I was called to implement push notifications in an iOS app, and I’m pretty confident that it has been coming to...
Integrating LinkedIn Sign In with iOS Apps Using OAuth 2.0
Social networks are part of our everyday life since a long time ago. Social networks are also part of our programming life, as the majority of the apps must interact somehow with them and send or receive data regarding users. In...