Android support library是google以jar包形式提供的一个代码库,里面包含一些向后兼容的framework API以及一些只有在这个library中才提供的feature. support library的jar文件名字中有一个版本信息,它指明了下后兼容到哪个版本,例如android-support-v4.jar说明向后兼容到 level 4(android 1.6),即如果你在android 4.2平台开发app是用了这个jar包,那这个app也可以运行在1.6之后的…
Support Library Setup How you setup the Android Support Libraries in your development project depends on what features you want to use and what range of Android platform versions you want to support with your application. This document guides you thr…