how to get spinner values in textview

Question

I am getting json response in alert dialog spinner,now i want user selected items in edittext with comma seperated,but when I run the app i am able to select only one and an

Answer 1

Define custom interface which is given callback from multiple item selection dialog.

public interface MultipleItemSelectListener {
    public void onSelected(String value,String ids);
}

Custom Multiple item selection dialog method.

Parameters

Content : your activity content reference.

title : dialog title.

jsonArrayString : your jsonarray response as string.

MultipleItemSelectListener : custom on item selected listener.

public void getMultiSelectionDialog(final Context context,final String title, String jsonString, final String value, final MultipleItemSelectListener target) {

    final ArrayList<String> values = new ArrayList<String>();
    final ArrayList<String> ids = new ArrayList<String>();
    final String BUSINESS_ID="id";
    final String BUSINESS_NAME="name";

    try {
        JSONArray jsonArray = new JSONArray(jsonString);
        int size = jsonArray.length();
        for (int i = 0; i < size; i++) {
            values.add(((JSONObject) jsonArray.get(i)).getString(BUSINESS_NAME).trim());
            ids.add(((JSONObject) jsonArray.get(i)).getString(BUSINESS_ID).trim());
        }

    } catch (JSONException e) {
        e.printStackTrace();
    }

    final boolean[] selections = new boolean[values.size()];
    final StringBuilder newValue = new StringBuilder();
    final StringBuilder newIds = new StringBuilder();

    AlertDialog alert = null;

    if (value.length() > 0) {
        String[] oldValue = value.split(",");
        int size = values.size();
        for (int i = 0; i < size; i++) {
            int len = oldValue.length;
            for (int j = 0; j < len; j++) {
                if (values.get(i).trim().equalsIgnoreCase(oldValue[j].trim())) {
                    selections[i] = true;
                    break;
                }
            }
        }
    }

    AlertDialog.Builder builder = new AlertDialog.Builder(context);
    builder.setTitle(title);
    builder.setMultiChoiceItems(values.toArray(new CharSequence[values.size()]), selections, new DialogInterface.OnMultiChoiceClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int which, boolean isChecked) {
            selections[which] = isChecked;
        }
    });

    builder.setPositiveButton("Done", new DialogInterface.OnClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int which) {
            int size = selections.length;
            for (int i = 0; i < size; i++) {
                if (selections[i]) {
                    newValue.append(newValue.length() > 0 ? "," + values.get(i) : values.get(i));
                    newIds.append(newIds.length() > 0 ? "," + ids.get(i) : ids.get(i));
                }
            }
            target.onSelected(newValue.toString(),newIds.toString());

        }
    });
    builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int which) {
            dialog.dismiss();
            int size = selections.length;
            for (int i = 0; i < size; i++) {
                if (selections[i]) {
                    newIds.append(newIds.length() > 0 ? "," + ids.get(i) : ids.get(i));
                }
            }
            target.onSelected(value,newIds.toString());
        }
    });
    alert = builder.create();
    alert.show();
}

How to getMultiSelectionDialog :

class LoadBusiness extends AsyncTask<Void,Void,String> {

    Context context;

    public LoadBusiness(Context context){
        this.context=context;
    }

    private ProgressDialog pDialog;
    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        pDialog = new ProgressDialog(context);
        pDialog.setMessage("Loading...");
        pDialog.setIndeterminate(false);
        pDialog.setCancelable(true);
        pDialog.show();
    }

    @Override
    protected String doInBackground(Void... params) {
        ServiceHandler sh = new ServiceHandler();
        String jsonStr = sh.makeServiceCall(BUSINESS_URL, ServiceHandler.GET);
        Log.d("Response: ", "> " + jsonStr);
        return jsonStr;
    }

    protected void onPostExecute(String result) {
        super.onPostExecute(result);
        pDialog.dismiss();
        setTextViewWithMultipleSelectionDialog(context,result);
    }
}


  public void setTextViewWithMultipleSelectionDialog(final Context context,final String jsonArrayString){

    splang.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            getMultiSelectionDialog(context,"Countries",jsonArrayString,splang.getText().toString(),new MultipleItemSelectListener() {
                @Override
                public void onSelected(String value) {
                    splang.setText(value);
                }
            });
        }
    });
 }

 @Override
 protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_main);
   splang=(TextView)findViewById(R.id.txtvw);

   new LoadBusiness(this).execute();
}