Eclipse/Android/XML resource

I'm not sure exactly how to word what I'm looking for. I need some kind of reference of codes to know what to enter into Eclipse for developing applications. I just got started developing, and I'm not off of the tutorials yet. At my house, I don't have an Internet connection, so I want some kind of library of codes.

For example, in XML the lines that define how wide or tall a line of text can extend. In the tutorial, it enters "fill_parent". I need some kind of resource that tells me everything I can enter there to change it.

If it helps, I've never coded or dev'd before in my life. I've also never constructed a web page. I have almost no prior knowledge or experience with Java or XML.

 

Patient bear will be patient...