Android开发——去除界面顶部的灰色标题栏

在onCreate()方法中写入：this.requestWindowFeature(Window.FEATURE_NO_TITLE);

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.login);

}