Android app 如何动态隐藏虚拟按键的考量.statusbar高度

http://asysbang.com/forum.php?mod=viewthread&tid=15&extra=page%3D1

http://www.2cto.com/kf/201305/209703.html

statusbar高度，虚拟按键高度修改

http://tieba.baidu.com/p/2576357367

   <!-- Height of the bottom navigation / system bar. -->
    <dimen name="navigation_bar_height">0dp</dimen> <!--48dp baihui-->
    <!-- Height of the bottom navigation bar in portrait; often the same as @dimen/navigation_bar_height -->
    <dimen name="navigation_bar_height_landscape">0dp</dimen>