While learning and experimenting with SwiftUI, I use the canvas assistant editor to preview SwiftUI views extensively. It is an amazing feature of Xcode 11 and I love it. There is a quirk that gets difficult for me though – the default behavior of the preview provider uses a gray background. I frequently use multipleContinue reading “Introducing and explaining the PreviewBackground package”
Tag Archives: swift
Four strategies to use while developing SwiftUI components
Lets start out with the (possibly) obvious: when I code, I frequently make mistakes (and fix them); but while I am going through that process function builders are frequently kicking my butt. When you are are creating SwiftUI views, you use function builders intensely – and the compiler is often at a loss to explainContinue reading “Four strategies to use while developing SwiftUI components”
Using Combine v1.1 is available
After getting the major edits for the existing content done, I called the result the first release. As with any creative product, I wasn’t happy with some of the corners that still had rough edges. Over the past two weeks I fleshed those in, wrote a bunch of unit tests, figured out some of theContinue reading “Using Combine v1.1 is available”
Using Combine – first edition available
I just finished my first edit pass of the content of Using Combine, and am incredibly pleased. Sufficiently pleased, in fact, that I am going to call this version the “first edition”. It is certainly not perfect, nor even as complete as I would like, but a significant enough improvement that I wanted to putContinue reading “Using Combine – first edition available”
Using Combine – reference content complete!
I’m thrilled to be announcing that an updated version of Using Combine is now available! It has taken me nearly 6 months to draft it all, reverse engineering and writing tests for all the various publishers, operators, and pieces in between – and documenting what I found. The end result is 182 pages (in USContinue reading “Using Combine – reference content complete!”
Combine: throttle and debounce
Updated March 2020 with more thoroughly accurate timing diagrams, after vetting against iOS13.2, iOS 13.3, and iOS13.4 beta. Combine was announced and released this past summer with iOS 13. And with this recent iOS 13 update, it is still definitely settling into place. While writing Using Combine, I wrote a number of tests to verifyContinue reading “Combine: throttle and debounce”
Using Combine (v0.8) update available!
A new version of Using Combine (v0.8) is now available. The live HTML site for Using Combine is updated automatically, and the PDF and ePub versions are now available on Gumroad. This version has a number of additional notes and changes, primarily from reader feedback, and some references to Combine’s changes with the release ofContinue reading “Using Combine (v0.8) update available!”
It is OK to test the framework
When I started to write the book Using Combine, I was learning the Combine framework as I went. There was a lot I was unsure about, and especially given that it was released with the beta of the operating system, the implementation was changing between beta releases as it firmed up. I chose to useContinue reading “It is OK to test the framework”
After writing extensively with the Swift programming language, I recently spent time writing code in C++11. The experience has been very instructional, and I know have a much deeper appreciation for the guard rails that the language Swift has constructed. To my surprise, it has also left me with a renewed appreciation of the compilerContinue reading “Sharp Knives”
A Using Combine update now available!
A new version of Using Combine (v0.7) is now available! The free HTML site of Using Combine has been updated automatically, and the PDF and ePub versions are available on Gumroad. This version has relatively few updates, primarily focused on some of the missing publishers and resolving the some of the egregious flaws in ePubContinue reading “A Using Combine update now available!”