小编ruh*_*lde的帖子

我想根据我的参数以编程方式将我的OptionsMenu中的子菜单添加到menuItem.我在android sdk中检查了"MenuItem"并且没有addSubMenu()方法!,尽管你可以找到"hasSubMenu()"和"getSubMenu".

正在考虑在onCreateOptionsMenu中这样做:

public boolean onCreateOptionsMenu(Menu menu) {

    MenuItem mi = menu.getItem(MYITEMID);  // << this is defined in my XML optionsMenu
    SubMenu subm = mi.addSubMenu(0,1,0,"Map 1"); // no addSubMenu() method!!!???
....

如何在代码中的menuitem中创建子菜单？

我正在使用发送JSON响应的API,如下所示:

    [
  - {
    "id": 46843639,
    "nickname": "JSON",
    "registration_date": "2004-03-07T23:16:20.000-04:00",
    "country_id": "BR",
    "user_type": "normal",
    "logo": null,
    "points": 91,
    "site_id": "JSN",
    "permalink": "http://xxxxxx",
    "seller_reputation": - {
      "level_id": "2_orange",
      "power_seller_status": null,
      "transactions": - {
        "period": "historic",
        "total": 14,
        "completed": 8,
        "canceled": 6,
        "ratings": - {
          "positive": 1,
          "negative": 0,
          "neutral": 0,
        },
      },
    },
    "status": - {
      "site_status": "active",
    },
  },
]

我找不到任何规范文件中的减号' - '.这是JSON标准吗？