隐藏一个活动的标题(如您打算向用户显示状态更新时),可以使用requestWindowFeature()方法,传递Window.FEATURE_NO_TITLE常量来控制。实现如下:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//hides the title bar
requestWindowFeature(Window.FEATURE_NO_TITLE); }