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To launch the Previewer in Visual Studio, select View -> Other Windows -> Xamarin.Forms Previewer, or search for “previewer” in the search bar. If you don’t see the design surface on the right, press the Preview button at the top right of the text editor to toggle the Previewer.

You should see a split view with your XAML on the left and a preview on the right: It’s also required during development for the Previewer to pick up any UI changes and resources outside of the XAML.ĭouble-click on a XAML file to launch the Previewer in Xamarin Studio or Visual Studio for Mac. Do an initial build of your app before opening the Previewer – an initial compilation is required for the Android preview to work.

Make sure your app uses XAML for user interface files. You can create a new Xamarin.Forms app from template or open an existing application. The Previewer works on any ContentPage, ContentView, or ViewCell in a Xamarin.Forms application. The Previewer is available for free with a Community license. Latest-and-greatest Xamarin.Forms NuGet is recommended at least 2.3.2 is required. On the Mac, it’s available by default in Xamarin Studio and the Visual Studio for Mac preview, with the latest Xamarin.iOS and Xamarin.Android installed. The Xamarin Forms Previewer is available by default with Visual Studio 20 RC with Xamarin installed. Today, we’re delivering the same core set of features that we previewed at Xamarin Evolve earlier this year, now available on both Mac and Windows. We’re happy to announce the Xamarin.Forms Previewer for Visual Studio and Visual Studio for Mac as part of our Microsoft Connect() 2016 release. The Xamarin.Forms Previewer renders a live preview of a page side-by-side with the XAML markup, allowing you to see your user interface come to life as you type. Real-time feedback makes development faster, easier, and more fun for developers. One of the most time-consuming parts of development is the the build and run cycle, or the time between writing a line of code and seeing it execute.