Today on the forums a user asked about bindings for IOKit. IOKit is very diverse, and currently unbound in Xamarin.Mac. However, since it’s C APIs, it is straightforward to bind by hand. There aren’t too many examples online how to approach this however, so let’s break it down here. We…

When a developer hits “Run” on a Xamarin.Mac application, a large number of moving parts engage to provide the “magic” necessary to produce a final application. Understanding where the different components (compiler, class library, runtime, bindings, packaging) all fit together can be a bit overwhelming. …

Today is an exciting day in the .NET community as .NET Core 2.0 was released: Announcing .NET Core 2.0 NET Core 2.0 is available today as a final release. You can start developing with it at the command line, in your…blogs.msdn.microsoft.com However, if you try to use your new shiny netstandard2 libraries with Xamarin.Mac (or iOS) you likely will run into a few issues as official support is scheduled for our next major release d15–4 (XM…

This morning a report came in that Xamarin.Mac Classic applications were broken on High Sierra (currently in Beta). Classic API and MacOS High Sierra I get this error: "Failed to Soft Linked: /System/Library/Frameworks/Contacts.framework/Contacts" when running my…forums.xamarin.com This was somewhat surprising, as our automated introspection tests were passing last time I checked. …

In Xamarin.Mac 3.2 one of the focuses was improving general application performance. In additional to Ahead of Time complication and the partial static registrar smaller improvements were looked into to speed up launch time performance. Out of this work it was discovered that unlike Xamarin.iOS, Xamarin.Mac did not default to…

All .NET applications depend upon classes and methods from the Base Class Library (BCL) as part of their implementation — Strings, System.Console, System.IO.Path, System.Net.Http.HttpClient and so on. When targeting many platforms, such as Xamarin.iOS or “desktop” console, the choice of which BCL library to link against is generally fixed and…

As you might know, .NET applications by default do not compile down to machine code when you build. They compile down to an intermediate layer, called IL, that looks something like this: During application launch, the mono runtime will Just In Time (JIT) compile this to machine code for you…

When developing an application, minimizing the time between completing a change and testing it is important for efficiency. Some strategies such as modularization of codebases, unit tests, and exploration with tools such as Xamarin Workbooks can help. The Xamarin.Mac team has been researching infrastructure improvements as well. One “low hanging…