No more text views, no more tricky workarounds, everything works out of the box now. — Traditionally, two kinds of text input controls exist in iOS and macOS; text fields and text views. The difference between them is that a text field accepts a single line of text, while a text view provides multi-line text editing. Although in macOS it’s possible -but not so common- to…

Get a recipe that generates image thumbnails easily. — Working with images in iOS projects is not rare. There are various operations one could perform to an image, and sometimes such an operation is to create a thumbnail, meaning a smaller version, of the original image. At first sight it might look like a complicated process involving a series…

Detecting hover events in SwiftUI couldn’t be easier. — View modifiers exist in SwiftUI in order to help us change the appearance and behavior of views easily. In the long list of them some work with particular views only and some other are intended to be used with any view. …

Create that special kind of button on macOS programmatically without hassle — AppKit framework exposes a variety of buttons to layout when implementing macOS apps, so we can provide users with the most appropriate controls to use when interacting with the app’s interface. Even though NSButton is the basic class to create buttons, there is a subclass of it named NSPopupButton, which…

A new view modifier makes the job easy. — Back in time I had written a post about sheets in SwiftUI, discussing how to present and work with them. Although the content of that tutorial remains valid, new interesting additions to sheets were introduced in WWDC 2022 that definitely deserve a new post to talk about them. Given that…

A game changer protocol in Swift — In WWDC 2022 and among other interesting announcements, Apple presented a new protocol in Swift, named Transferable. In a nutshell, Transferable makes it really easy and absolutely straightforward to copy data either among different spots within the same app, or even different apps. …

A quite common structural design pattern presented through a practical example. — The facade (spelled façade) design pattern is a pretty common pattern that’s usually easy to adopt. Having taken its name from the front side in architecture and buildings that hide their internals, chances are that you have already put it in motion, even without realizing it. What the facade pattern…

A few guidelines for smooth testing of concurrent code. — In an ideal world, testing should be part of the development process of an app. The truth, however, is that testing is not always in the mix, and that’s mostly because it requires additional time; an asset that’s often missing from developers, especially when it’s necessary to meet deadlines. …

It’s necessary to be resourceful in unexpected situations when programming. — Well, this post is about a specific issue that I recently met in SwiftUI and I would like to share here. Comparing to UIKit, SwiftUI is still an infant, yet it’s not that new so we still have many dark points about it. …