04 November 2020
This is a short post about how I refactored a nested for loop using flatMap. I had a struct that defined name and quantity properties as shown below:
struct Item {
let name: String
let quantity: Int
}
The actual code used a custom type rather than a String, but I’ve used String here to simplify the example.
Read More...29 June 2020
Last week I watched the Swift packages: Resources and localization video from WWDC20. One thing I learned was that the Canvas can preview localized values. This is done by adding a locale to a View via the environment.
Read More...08 May 2020
In a previous blog post, I wrote about my app crashing when it was installed via TestFlight. In this blog post, I will go into more detail about how I debugged the problem using logs and crash reports.
Read More...03 May 2020
I hit a small milestone recently, I submitted my first app to TestFlight. I thought this process would be quick. Maybe a day or two. A week later I finally had a working app on TestFlight. During that time I learned much about crash logs and debugging. Here is my story.
Read More...16 April 2020
I wrote a unit test that used the XCTUnwrap function. This feature was added in XCode 11 and
“Asserts that an expression is not nil and returns the unwrapped value.”
However, when I pushed my code to GitHub, the build broke with the following error.
Read More...error: use of unresolved identifier ‘XCTUnwrap’
05 August 2019
This post is about a problem I had with a UISearchController in an iOS app. The issue was the search bar would animate on top of the status bar. This made it hard to use as shown in the following video.
Read More...14 July 2019
It’s been awhile since I blogged, so I thought I should provid an update.
In the autumn of 2018 I started developing as iOS app as a hobby. Previously, I worked through the “iOS Development with Swift” book. The book leads you through the process of building an app. By the end of the book you have created a multi-screen functional app which lets you enter and sort books. I enjoyed the process and wanted to build my own.
Read More...09 August 2018
I was recently working on a problem from a tutorial. The problem was basic: write some code that will build a Google search URL. It had the following requirements:
29 January 2018
In a previous post, I wrote about implicitly unwrapped optionals. However, I was not happy with the example I created; it felt contrived. The following is the example I used:
Read More...13 December 2017
Last week I received my first pull request to a project on GitHub. This post is about my thoughts on the experience.
Read More...