在微调器中设置键和值 [英] Set Key and Value in spinner

问题描述

我有一个微调器，我想在上面设置一个键和一个值，我使用 HashMap，它可以工作，但显示一行，像这样:

I have a spiner and I want set a key and a value on this,I use of HashMap,It's work,but show one row,like this:

代码:

        final View rootView = inflater.inflate(R.layout.fragment_photos, container, false);

    Spinner spin=(Spinner)rootView.findViewById(R.id.spinner1);

    HashMap<Integer, String> P_Hash=new HashMap<Integer, String>();

    Update Get_Information=new Update(rootView.getContext());

    ArrayList<String> Province_NAME=new ArrayList<String>();
    Province_NAME=Get_Information.GET_Province();

    ArrayList<Integer> Province_ID=new ArrayList<Integer>();
    Province_ID=Get_Information.Get_Province_ID();

    for (int i = 0; i < Province_ID.size(); i++)
    {
        P_Hash.put(Province_ID.get(i), Province_NAME.get(i));
        Log.d("Province_ID.get(i)", Province_ID.get(i)+"");
        Log.d(" Province_NAME.get(i)",  Province_NAME.get(i)+"");
    }


    ArrayAdapter<HashMap<Integer, String>> adapter = new ArrayAdapter<HashMap<Integer,String>>(rootView.getContext(), android.R.layout.simple_spinner_item);
    adapter.add(P_Hash);
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

    spin.setAdapter(adapter);

推荐答案

尝试使用 HashMap 来存储 Key-Value 对数据，在你的情况下 spinner项目索引作为键，Province_ID 作为值.查看以下示例了解更多详情.

Try to use HashMap to store Key-Value pair data and in your case spinner item index as key and Province_ID as value. Check below example for more details.

为微调器准备值

String[] spinnerArray = new String[Province_ID.size()];
HashMap<Integer,String> spinnerMap = new HashMap<Integer, String>();
for (int i = 0; i < Province_ID.size(); i++)
{
   spinnerMap.put(i,Province_ID.get(i));
   spinnerArray[i] = Province_NAME.get(i);
}

设置微调器的值

ArrayAdapter<String> adapter =new ArrayAdapter<String>(context,android.R.layout.simple_spinner_item, spinnerArray);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);

为微调器创造价值

String name = spinner.getSelectedItem().toString();
String id = spinnerMap.get(spinner.getSelectedItemPosition());

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