1.重写创建menu函数@OverridepublicbooleanonCreateOptionsMenu(Menumenu){super.onCreateOptionsMenu(menu);menu.add(0,0,0,"关于我");//第二个参数是menu的id，第4个参数是菜单显示的内容，其余的不重要。menu.add(0,1,0,"退出");menu.add(0,2,0,"谢谢");SubMenusubMenu=menu.addSubMenu(0,3,0,"更多");//submenu是点击还可以产生子菜单subMenu.add(1,4,0,"更多1");subMenu.add(1,5,0,"更多2");returntrue;}2.重写menu响应函数这里的item.getItemId()就是上面提到的第二个参数@OverridepublicbooleanonOptionsItemSelected(MenuItemitem){super.onOptionsItemSelected(item);switch(item.getItemId()){case0:break;case1:break;case2:break;case4:break;case5:break;}returntrue;}