Android/UI/GUI/Theme, What programing language is used, by the device/google/android? I think, its not JUST java.

Question

I had a FEW questions, that I wasn't able to answer on my own. The short answer would be, Java, but I don't know if thats entirely correct.

What programming language is used for UI/GUI development in Android/whats already on the device?

C,C++,Java, a combination of all of them?

Also can you see the code on your phone/tablet/Android Device?

Examples of being able to do this, within a browser, for web development/HTML,CSS,PHP/ for a reference, of what was used to code a site, the example, is, inspect element/F-key to view the code.

Also does Google/Android/MAYBE Linux have a developer/technical support number?

The last question MAY be funny, to some people/it MIGHT be an obvious, NO.

The device/phone, Im currently coding, something for, is UI related, on the Razor Phone 2, BUT I wanted to emulate/test on other virtual devices, as well, ONCE, I know the programing language/what will work.

Also ROOT, MAY be needed, but Im trying to avoid that.

Anyway thanks in advance, for any help I get/answers, I get.

Answer 1

Android is an operating system and you probably know C/C++ are mostly used for OS.

Art and Dalivek VM are written in C++. Rest of the kernel are written in C.

And other Android API's in Java.

And yes there's a tech support for android developers
👉 https://developer.android.com

Here you can see Android Open Source Project
👉 https://cs.android.com/android