My first app

做个广告,纯傻瓜式教程，很适合快速上手

http://developer.android.com/training/basics/firstapp/starting-activity.html

What did I get from this course ：

1 How to set up environment for Android app developping

2 How to create a simple project

3 How to start Debug with AVD

4 What are the basic elements involved ,such as Activity / EditText / Button / Intent

5 What are the related files involved, such as "AndroidManifest.xml" / "res/layout" / "res/values/strings.xml"