Create an ElementaryOS app with GTK & Vala! (ElementaryOS Apps Pt 1)
0I asked on the ElementaryOS subreddit if folks would like to see a tutorial on how to make an ElementaryOS app using GTK and Vala.
All "official" ElementaryOS apps are written in Vala and GTK3. The ElementaryOS team wrote their own GTK lib called Granite which provides lots of helpers and utilities to assist in the creation of Elementary apps.
Vala is a language built on top of C and the GObject system. Valac (the compiler) is a trans-compiler that uses regular C as the language Vala is compiled into. The compiled C code is then compiled to machine code using GCC.
ElementaryOS Linux is a Linux distribution based on Ubuntu 16.04 LTS and is developed independently by the ElementaryOS team. Much of Ubuntu's code lives in a VCS called Launchpad, most of Elementary's code lives in GitHub.
While all official ElementaryOS applications use Vala and GTK, unofficial and community applications don't have to. Because of how flexible GTK+ styling is, as long as you use a toolkit that works well with GTK, your application should adopt the Elementary styling and window decorations for free!
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