What is needed to create an online Compiler for android?

I searched for a method to call the compiler for Java from a website, consider it as online compiler. What I want to do is specify the layout of UIs of the application through a website, after that I want to call Android SDK (or compiler) to compile an existing app with new layouts that I provide it.

I would like to know 开发者_如何学运维the basic principles and approach to creating something like this.

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If you really need to design and compile remotely, I'd suggest a remote access service, like XVnc (for Linux), Remote Desktop or LogMeIn (for Windows).