当前firebase数据库为:

{
  "user_type" : {
     "number1" : {
      "name" : "Puneet",
    },
    "number2" : {
      "name" : "AMAN SINGH",
    },
     "number3" : {
      "name" : "harsha",
    }, 
    "number4" : {
      "name" : "abhishek",
    },
    "number5" : {
      "name" : "Satya",
    },
  }
}

我想按姓名升序对列表进行排序。 所以这个代码是:

 myRef.child("user_type").orderByChild("name");  

但它返回的结果为:

{
  "admin" : {

    "number2" : {
      "name" : "AMAN SINGH",
    },
      "number1" : {
      "name" : "Puneet",
    },
     "number5" : {
      "name" : "Satya",
    },
      "number4" : {
      "name" : "abhishek",
    },
     "number3" : {
      "name" : "harsha",
    }

  }
}

但我期待以下订单:

{
  "admin" : {

    "number2" : {
      "name" : "AMAN SINGH",
    },
       "number4" : {
      "name" : "abhishek",
    },
    "number3" : {
      "name" : "harsha",
    }
      "number1" : {
      "name" : "Puneet",
    },
     "number5" : {
      "name" : "Satya",
    }
  }
}

因此，它不是按照当前的顺序排序，而是先排序大写字母单词，然后排序小写字母单词并合并列表。