//去掉标题
requestWindowFeature(Window.FEATURE_NO_TITLE);
//全屏显示
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
android activity属性,布布扣,bubuko.com
原文：http://www.cnblogs.com/wxb37/p/3620538.html