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A topic that I have been hearing a lot about lately is the MVVM design pattern.  MVVM stands for Mode-View View Model and is intended to solve some of the concerns that have resulted from using the MVC design pattern - specifically in the context of iOS.  While MVVM is certainly not an iOS specific design pattern, I did conduct some further research into MVVM using iOS as my research platform because I I wanted to try and figure out if MVVM could be a design pattern that fixes some of the issues that I have run into when developing large MVC iOS applications.

This week I heard some chatter in certain iOS groups that I belong to about whether testing your iOS, macOS, watchOS, or tvOS applications provided any immediate value in the development life cycle.  As opposed to developing features without testing and getting them to market right away and then iterating upon them in a highly agile methodology.  Coming from a background where I like to write a lot of automated tests and system tests for software that I write, I have to admit, this point of view really made me pause for a moment to try and see the perspective from both sides.

Today I was analyzing a potential bottleneck in some computation I was doing with Swift and thought I would try a basic linked list data structure to store data instead of an array.  It soon dawned on me that I have never created a linked list in Swift before and thought this might be a good opportunity for a Swift Playground to test out my idea.  Sure enough, using Playgrounds was a great way to test out my code and make sure it was running the way I wanted it to before integrating it into my project.

Last week I started building an iOS application in Swift 3.0 and Xcode 8 and was able to get a good portion of the application completed.  Towards the end of last week I became aware of the need to integrate a Unity / Vuforia exported project into my existing iOS Swift project to enable an augmented reality feature in the iOS application I was working on.

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