ios - 自动完成文本字段和 Firebase

Question

我正在尝试在 Swift 中集成 Firebase 和 AutoCompleteTextField，以便在 textField 中实现自动完成功能。我在尝试将字典转换为数组以便可以在 autoCompleteTextField.autoCompleteStrings 中设置它时遇到问题。这是我的代码。

func handleTextFieldInterfaces() {

    let ref = FIRDatabase.database().reference().child("Airport")
        ref.observeEventType(.Value, withBlock: { (snapshot) in
    self.autoCompleteTextField.onTextChange = {[weak self] text in

            if !text.isEmpty {
            var fbosStuff = [String]()
                if let snaps = snapshot.value as? [[String: AnyObject]] {
                for places in snaps {
                    print(places)
                    let names = places["code"] as? String
                    fbosStuff.append(names!)
                }
                 self!.autoCompleteTextField.autoCompleteStrings = fbosStuff

                }
            }

        }
    })
}

我尝试放入文本字​​段的 Firebase 响应是。

Snap (Airport) {
"Long Beach" =     {
    FBOs =         {
        Atlantic =             {
            100LL = "7.0";
            freq = "120.1";
            fullname = "Atlantic, Long Beach, KLGB";
            "jet-A" = "5.5";
            "phone number" = "(800) 554-3591";
        };
        Signature =             {
            100ll = "7.0";
            email = "lgb@signatureflight.com";
            freq = "120.1";
            fullname = "Signature, Long Beach, KLGB";
            "jet-a" = "5.5";
            phonenumber = "(800) 554-3591";
        };
    };
    code = KLGB;
    fieldname = Daughtery;
    location = "Long Beach, California, USA";
};
"Santa Monica" =     {
    FBOs =         {
        "American Flyers" =             {
            100ll = "5.38";
            freq = "123.3";
            fullname = "American Flyers, Santa Monica, KSMO";
            phonenumber = "(310) 390-2099";
        };
        Atlantic =             {
            100ll = "7.79";
            freq = "122.95";
            fullname = "Atlantic, Santa Monica, KSMO";
            "jet-a" = "7.19";
            phonenumber = "(310) 396-6770";
        };
    };
    code = KSMO;
    fieldname = "Santa Monica Muni Airport";
    location = "Santa Monica, California, USA";
};

}

Answer 1

尝试:-

swift 2

for places in snaps {

  print(places.0)  // Will give you the key
  let names = places["code"] as? String
  fbosStuff.append(names!)

 }

swift 3

for places in snaps {

  print(places.key)  // Will give you the key
  let names = places["code"] as? String
  fbosStuff.append(names!)

 }