Set Key and Value in spinner

android, hashmap, spinner

Solution

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.

Prepare value for spinner

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);
}

Set value to spinner

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);

Get value to spinner

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

Problem

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: Code: ``` 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); ```

Original source