Java实现android通讯录按字母排序并切换,手触在字母上检索出所属拼音首字母的联系人，现在安卓机都有的功能，比较实用。-Android Java implementations and switch contacts alphabetically, hand touch on the phonetic alphabet to retrieve an initial contacts, now Andrews machine has functions more practical.

安卓开发代码,与安卓环境下JAVA语言开发APP教学同步-Android development code, sync with APP teaching JAVA language development environment under Andrews