How to leverage the power of Property Wrappers to save and retrieve App Settings with a unique Default Value — With the release of property wrappers together with Swift 5 and Xcode 11, many patterns can now be reimplemented in an easier, cleaner and faster approach. For instance, we use them at WELT to add an extra layer of logic to some UIColor instances, so the appropriate color value is…

Or how we started using SwiftUI in Production Code without (major) Headaches — With the Product Owner’s green light for dropping the support of iOS 12 downwards, a new world of juicy possibilities emerged in our development horizon. Together with iOS 13 two major new Apple frameworks were released: Combine and SwiftUI, the new framework to design and develop user interfaces declaratively and…

Revive an outdated Package with a new and fresh Look — Yeah, it happens. Time flies. “Tempus Fugit” as the cool people used to say. It could be a new grey hair or wrinkle when facing the merciless mirror, the sudden realisation that your team did not win the league in few years or an iOS library written for iOS 8…

Get notified reactively when the user changes the face expression with Wink — In my previous stories Warhol and Warhol II I talked about how we can easily detect the user face features and render our desired overlay on top of them thanks to Warhol, a library of my own. For that I used the Apple Vision Framework, that among other things supports…

Hide your Implementation Details to make your Code cleaner and safer — Our iOS Team at WELT got recently very good news, we could set our App iOS Deployment Target to 13.0. …

Create your own website without taking a sweat — Today I’ll cover a different topic than usual. In fact, i am not going to mention the word Swift (oops, just did) or iOS in the whole article. …

Bear this in mind before creating or adding a 3rd Party Library to your project — We as developers are usually advised to search in the Open Source Community before adding new functionality. The odds are that most likely some other engineer faced the same problem and, in a remarkable act of charity, published their solution so we can also reuse it. …

Or how to avoid Merging Nightmares and Long Compilation Times — More and more we see how the iOS community strives for more modularized architectures. And it is obviously not just a fad. The benefits are clearly evident, the most immediate being much shorter compilation times given that you can just focus on the working framework. Furthermore, you are aiming for…

Add your Filter Overlay without having to deal with coordinates in Warhol — Some time ago I talked about Warhol, a library of my own that detects a Face from a Camera or Image input and passes the related information to the client. That way, the latter can draw on top or process the face data to accomplish its requirements. I find it…