Metaprogramming in Swift, and the issue with Process and relative paths
Find out why your Swift CLI tool isn't capable of dealing with relative paths, and how to solve it!
Convert between image (pixels) and scaleAspectFit UIImageView coordinates like a champ!
When working with images in iOS, it's sometimes necessary to convert between an image's pixel coordinates and the coordinates of the UIImageView that displays the image. Here's how to do it.
Preserve your images' transparency when saving and sharing them, in Swift
Loosing your rounded corners or transparent background when saving an image to the user's photo library or sharing it with UIActivityViewController? It's because it's be turned into a JPEG. Here's how to solve that.
From a base64 API Key to a json file, in bash, on macOS
While working on a client's app's CI pipeline, I needed to use an API key. However, it was stored as a base64 environment variable, when the tool I needed to use required it to be plaintext in a JSON file. Fun times.
Escape a newline in bash on macOS
While setting up a new step for a client's CI pipeline on a macOS agent, I needed to export an API key containing line breaks to a JSON file. Meaning I had to escape line breaks, in bash, on macOS. Turns out, it's not as easy as it sounds. Who would've guessed?
Build OpenCV Contrib as a .xcframework, for iOS, on a M1
We needed an OpenCV Contrib module in an iOS app, using Swift Package Manager. I thought the hardest part would be using OpenCV. How wrong I was.
Add a height-flexible placeholder to your UITextView
Once you have tasted SwiftUI, this kind of UIKit lacking makes you wish you could refactor a client's whole codebase at a snap from your fingers. At least the UI side of it. But, alas, there is no magic spell for that. Yet.
What kind of lacking? UITextView doesn't have