Android 菜单 Menu

@OverridepublicbooleanonCreateOptionsMenu(Menumenu){//Inflatethemenu;thisaddsitemstotheactionbarifitispresent.//getMenuInflater().inflate(R.menu.main,menu);MenuItemmenuSys=menu.add(1001,100,1,”系統菜单”);
menuSys.setTitle(“菜单一”);/*最多能够显示6个子菜单*/MenuItemmenuUser=menu.add(1001,101,1,”用户菜单”);
menuUser.setTitle(“菜单二”);
menuUser.setShortcut(‘c’,’c’);/*给菜单设置快捷键*/MenuItemmenuCust=menu.add(1001,102,1,”客户菜单”);
menuCust.setTitle(“菜单三”);returntrue;

}
@OverridepublicbooleanonOptionsItemSelected(MenuItemitem){//TODOAuto-generatedmethodstubswitch(item.getItemId()){case100:
Toast.makeText(MainActivity.this,”选择了菜单一”,1).show();
Intentintent=newIntent(MainActivity.this,NextActivity.class);
item.setIntent(intent);/*切换到第二个Activity*/break;case101:
Toast.makeText(MainActivity.this,”选择了菜单二”,1).show();break;case102:
Toast.makeText(MainActivity.this,”选择了菜单三”,1).show();break;default:break;
}returnsuper.onOptionsItemSelected(item);
}