如何在 Spinner 中获取值并将值传递给 url 以进行翻译

Question

我正在 Android Studio 上开发 翻译应用程序 。我已经使用 Map 创建了我的语言键和值，我想将用户选择的键的值传递给 URL。例如，如果用户从微调器中选择法语，则 "fr" 应该传递给 url 进行翻译。我怎样才能做到这一点？下面是我的 Java Activity 代码。我正在使用最新的 Android Studio。

     spinner = (Spinner)  findViewById(R.id.spinner);

    final Map<String, String> flanguages = new HashMap<String, String>();
    flanguages.put("Arabic", "ar");
    flanguages.put("English", "en");
    flanguages.put("French", "fr");
    flanguages.put("Hausa", "ha");
    flanguages.put("Igbo", "ig");
    flanguages.put("Yoruba", "yo");
    flanguages.put("Japanese", "ja");

     final List<String> list = new ArrayList<String>(flanguages.keySet());


    final ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, list);
    spinner.setPrompt("Select Language To Translate");
    arrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    spinner.setAdapter(arrayAdapter);


    spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {

            spinner.getItemAtPosition(position).toString();

        }

        @Override
        public void onNothingSelected(AdapterView<?> parent) {

        }
    });

Answer 1

在你的 onItemSelected 回调中

String key = list.get(position);
String countryCode = flanguages.get(key);

国家代码就是你所需要的

Answer 2

spinner.getItemAtPosition(position).toString(); //returns country Full-name

这一行给出了您选择的项目，即国家名称，但不是其缩写。获取缩写使用HashMap（使用Key获取Value）。例如：这里的key是"France"，它的值是"fr"

 spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
    @Override
    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {

        String key = spinner.getItemAtPosition(position).toString(); //ex: this gives France
       // String key = list.get(position); // or use can use this,//ex: this also gives France

        String countryCode = flanguages.get(key); //ex: this gives "fr"
        //api integration

    }

    @Override
    public void onNothingSelected(AdapterView<?> parent) {

    }
});

如何在 Spinner 中获取值并将值传递给 url 以进行翻译

How to get Value in Spinner and pass the Value to url for translate

android

hashmap

google-translate

key-value

android-spinner