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.
Making a zoomable Image, in SwiftUI
This should have been simple, but it wasn't. So if you too are having a hard time making a zoomable image in SwiftUI, come on in!
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.
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
Make your UIButtons come to life
After giving our UIViews' both shadows AND rounded corners, today we will learn how to animate UIButtons and make them visually respond to our users' touch!