First experience with Xamarin Forms 3.0 on Linux: Looking back after .NET Conf 2017

Introduction

For many .NET fans, they are probably familiar with the things of .NET Conf 2017 a month in advance. For Xamarin fans, the biggest surprise is not Xamarin Live Player, nor Xamarin.Forms hybrid NativeControl, but Xamarin.Forms 3.0 , because it is integrated into the Linux platform. Xamarin.Forms is cross-platform and writing once to generate a native interface is a great advantage in cross-platform mobile development. Since the birth of 1.0, using XAML to build multi-platform native interfaces has become indispensable in my projects and a topic that I must talk about every time I give a speech.

If everyone hopes that Xamarin.Forms will have greater room for improvement, it may be able to write interfaces more efficiently and integrate more native controls. In May Build, Xamarin satisfied everyone. What’s more surprising for everyone this time is that Xamarin Forms can enter Linux Desktop, and integrates Gtk Sharp to allow you to complete cross-Desktop development more quickly. What's even more gratifying is that it is no longer something on PPT, but a good toy that can be played with.

I took advantage of this weekend to play with Xamarin.Forms 3.0 myself and share some experiences with everyone.

1. Study materials

https://github.com/jsuarezruiz/forms-gtk-progress This is the most official and most convenient place to learn about Xamarin.Forms.gtk. At this stage, Xamarin .Forms.gtk is still under development. You can follow more inquiries here and contribute code. By the way, I am also planning to make some contribution here and will share it with you in the coming days.

https://github.com/jsuarezruiz/xamarin-forms-samples/tree/gtk Official sample is the best tutorial at this stage.

https://channel9.msdn.com/Events/dotnetConf/2017/T326 .NET Conf 2017 video introducing Xamarin.Forms 3.0

2. Development environment

Install your mono and MonoDevelopIDE on Linux (one day it will be called Visual Studio for Linux). If you don’t know how yet, go to http://www.mono-project.com/ for tutorials.

Nuget configuration, since Xamarin.Forms is in a very early stage, it does not exist on Nuget, but you can make a local Nuget through the example just mentioned (the Nuget folder in Sample contains Xamarin.Forms 3.0 , Xamarin.Forms.GTK and other new packages). Open MonoDevelop and import it through Tools -> Add Custom Tool -> Nuget -> Source.

3.Xamarin.Forms project

Development, now create a Xamarin.Forms project on Windows/MacOS (it is not possible to create a Xamarin.Forms project on Linux yet, and the Xamarin.Forms.GTK project has not yet officially introduced the Xamarin.Forms solution template), Then open it in Linux and add a GTK# project to the created project.

And delete the interface corresponding to Windows.cs and the related User Interface folder. Next, replace the Xamarin.Forms in the solution with version 3.0 (if you just added Nuget successfully, you can see the reference in the picture below), and add a Xamarin.Forms reference to the created GTK# project.

The last thing to do is to modify Program.cs

After looking at the results, I feel good about myself. Looking back at the project, it still smells familiar, C#, XAML, MonoDevelop. All it is cool

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