《Google Android SDK开发范例大全》全部范例源码，对初中级的来说还是很不错的哦。 -" Google Android SDK development of examples of documents," all source code of the examples, pretty good for learners of middle class

Android用户信息编辑和设置模块,spinner的应用，跑马灯的实现，datapicker的使用-android user info edit module，the use of spinner,and the cycle display of text, and the datapicker in android.

android平台上模拟ios上的日期选择控件jar包，可以很容易的集成到你的android工程中-The datapicker jar package on android, is similar as that on ios platform, can be easily integrated into your android project