Instrumented test, which will execute on an Android device. @see <a href="http://d.android.com/tools/testing">Testing documentation</a>

Example local unit test, which will execute on the development machine (host). @see <a href="http://d.android.com/tools/testing">Testing documentatio

<p>This set of layout parameters defaults the width and the height of the children to {@link #WRAP_CONTENT} when they are not specified in the XML fil

<p>Interface definition for a callback to be invoked when the checked radio button changed in this group.</p>

<p>A pass-through listener acts upon the events and dispatches them to another listener. This allows the table layout to set its own internal hierarch

用来管理手机状态栏一系列操作，主要是就Window类的使用

【Item侧滑删除菜单】 继承自ViewGroup，实现滑动出现删除等选项的效果， 思路：跟随手势将item向左滑动， 在onMeasure时 将第一个Item设为屏幕宽度 【解决屏幕上多个侧滑删除菜单】：内设一个类静态View类型变量 ViewCache，存储的是当前正处于右滑状态的CstSwip