Continuous Integration and Continuous Delivery with Jenkins and Fastlane
Testing has been an essential part of most medium-to-large projects, hence, it is important that every code change to our main branches triggers a full execution of test suite, so as to ensure that the change we made does not...
Best Practices for Building Swift Classes
In this tutorial, I’m going to give you some best practices that will help you safely and effectively use classes (reference types) and reference semantics in Swift. Protocol-oriented programming (POP) and value semantics...
Protocol-oriented Data Structures in Swift 4: A Generic Doubly Linked List
Let’s talk about creating a list on steroids, i.e., a generic doubly linked list in Swift. For our purposes here, a list is a software receptacle that contains related data that we’re interested in inspecting,...
Memory Management in Swift: Understanding Strong, Weak and Unowned References
Behind all the coding that we are doing, you probably have noticed some of your variables with the reference of strong, weak or unowned when writing your codes. What do they really mean? Does it make your variable stronger by...
Design Patterns in Swift #3: Facade and Adapter
This tutorial is the third installment in our series on design patterns. I started this series with a tutorial examining two examples of patterns in the “creational” category: factory method and singleton. I then...
ARKit 2.0 Tutorial: Saving and Restoring World-mapping Data to Create a Persistence AR Experience
Welcome to the eighth installment of our ARKit tutorial series. Starting from iOS 12, ARKit has the capability to persist world mapping data. In the past, you can’t save the AR world mapping data. iOS 12 has given...
Design Patterns in Swift #2: Observer and Memento
This tutorial is the second installment in an AppCoda series on design patterns started last week. There are 23 classic software development design patterns probably first identified, collected, and explained all in one place by...
Creating a Prisma-like App with Core ML, Style Transfer and Turi Create
If you’ve been following Apple’s announcements from the past year, you know that they are heavily invested in machine learning. Ever since they introduced Core ML last year at WWDC 2017, there are tons of apps which...
Design Patterns in Swift #1: Factory Method and Singleton
There are 23 classic software development design patterns probably first identified, collected, and explained all in one place by the “Gang of Four” (“GoF”), Erich Gamma, Richard Helm, Ralph Johnson, and...
An Introduction to AR Quick Look in iOS 12
At WWDC 2018, Apple released ARKit 2.0 with a slew of brand new APIs and features for Augmented Reality Development. One of these features was an addition to their Quick Look APIs. If you’re not familiar with what Quick...