Performant, sleek and elegant.
WWDC'20 brought an addition to SwiftUI apps which enables to create document based applications in SwiftUI. Along with DocumentGroup API two new protocols were added: FileDocument and ReferenceFileDocument. The first one is meant for value types and the latter one for class type document types. For seeing how much effort it takes to create a …
Continue reading "Reading Fastfiles with document based SwiftUI app on macOS"
I have been writing a new blog post at least every second week and therefore in 2020 I have published total of 27 blog posts. It is time to take a look back on the 2020 and see which blog posts were the most popular ones. I am just looking at the total count of …
A SwiftUI view showing buttons for taking a photo and opening photo album.
In model-view-view model (MVVM) architecture the view model observes the model and provides data for the view by transforming it when needed. When the user interacts with the view and changes the data in it then the view model's responsibility is to propagate those mutations back to the model object. Therefore, the important part in …
Continue reading "Observing a KVO compatible model in SwiftUI and MVVM"
Wave shape with red button on top of it
A while ago I wrote about using MVVM in a SwiftUI project. During the WWDC’20 Apple announced @StateObject property wrapper which is a nice addition in the context of MVVM. @StateObject makes sure that only one instance is created per a view structure. This enables us to use @StateObject property wrappers for class type view …
Xcode 12 comes with Swift toolchain 5.3 which brings resource and localisation support to Swift packages. Nice thing is that Swift package support only depends on the toolchain's version and does not have additional OS requirements. At the same time, let's keep in mind that OS requirements come from the code we actually add to …
Continue reading "Separating code with Swift packages in Xcode"
Picker is used for presenting a selection consisting of multiple options. UISegmentedControl which is known from UIKit is just a different picker style in SwiftUI. Let's take a quick look on how to create a form with two items: picker with default style and picker with segmented style. Creating a from Form should be typically …
Continue reading "Picker and segmented control in SwiftUI on iOS"
SwiftUI provides wrappers for UIViewController and UIView on iOS. Same wrappers are also available for AppKit views on macOS. Let's see how to use those wrappers for rendering UIKit views in SwiftUI previews and therefore benefiting from seeing changes immediately. Note that even when a project can't support SwiftUI views because of the minimum deployment …
I am happy to announce that Signal Path 2.0 is available now for macOS and iOS. Signal Path uses Apple's universal purchase offering - buy it once for both platforms. Signal Path 2.0 on the App Store Past, present, and future I spent a lot of time architecting both apps in a way that they …
Continue reading "Signal Path 2.0 for iOS and macOS is available now!"
