How to create an android application or theme?

[Paulagrace]

I wanted to start developing one or two android applications, themes or software.
I was just wondering if theres anything specific i need to read,or new software i need to learn.

Obviously im looking to make something really simple.

Thanks

 

[valorian]

http://androidforums.com/android-ap...t-software-do-i-need-create-android-apps.html