android:clipToPadding和clipChildren

clipToPadding 定义了是否允许父控件在padding中绘制,　默认为true,　即不允许. 

android:clipToPadding属性的分析——以ListView的"别样"padding为例http://blog.csdn.net/lfdfhl/article/details/38051815扩展：Padding与绘制区域--android:clipToPadding和android:clipChildrenhttp://blog.csdn.net/hpu_zyh/article/details/44520949http://fatsoon.com/android/2015/01/21/clip-to-padding.html