This code is useful for android learners.it contains how to add a button in a screen in android with the help of xml in android.this is the basic code.

Android provides a rich application framework that allows you to build innovative apps and games for mobile devices in a Java language environment. The documents listed in the left navigation provide details about how to build apps using Android's va

它是一个简单的安卓项目关于怎么使用RatingBar，很适合初学者借鉴-It is a simple android program about how to use RatingBar,it is suited to the people who learn android at the first time.