这个是android界面特殊效果的第三方的jar包，比如滑动效果，貌似在3.0以后就自带了，不需要手动加载了，打开的是.class文件，eclipse下没有插件的话就是打不开的-This is a special effects android interface third party jar package, such as sliding effect, looks like after it comes in 3.0, no need to manually loaded, open t