Populating Spinner using ArrayList in Android

I have an activity in which I have to parse an XML and populate a Spinner using the parsed data. I am done with parsing the XML. This is the method: ``` void parse_ExamList() { ArrayList<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>(); XMLParser parser = new XMLParser(); //String xml = parser.getXmlFromUrl(URL); // getting XML Document doc = parser.getDomElement(xmlContent); // getting DOM element //count_questions=2; NodeList nl = doc.getElementsByTagName(KEY_EXAMSET); // looping through all item nodes <item> for ( int i = 0; i < nl.getLength();i++) { // while(counter< nl.getLength()) // { // creating new HashMap HashMap<String, String> map = new HashMap<String, String>(); Element e = (Element) nl.item(i); // adding each child node to HashMap key => value //map.put(KEY_EXAMSET, parser.getValue(e, KEY_EXAMSET)); map.put(KEY_SETID, parser.getValue(e, KEY_SETID)); map.put(KEY_SETNAME, parser.getValue(e, KEY_SETNAME)); //Log.i("Set ID: ", parser.getValue(e, KEY_SETID)); //Log.i("Set Name: ", parser.getValue(e, KEY_SETNAME)); menuItems.add(map); } } ``` If you notice you can see that KEY_SETID and KEY_SETNAME to the arraylist. I have to populate the spinner with the KEY_SETNAME and the KEY_SETID will not be shown in the spinner. But if the item is clicked then the id corresponding to the name should be acquired in order to send to the server. I have a method to populate a spinner, like this: ``` // add items into exam list spinner dynamically public void addItemsOnExamListSpinner() { List<String> list = new ArrayList<String>(); list.add("Speed Test 150(min) PO Set-01"); ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, list); dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); exam_list_spinner.setAdapter(dataAdapter); } ``` How should I populate the spinner with the ArrayList that is obtained while parsing the XML? This is the full activity: ``` public class SpeedTestExamNameActivity extends Activity { Spinner exam_list_spinner; Button detailsBtn; TextView showUser; String full_name; //variables to get response from server String responseBody; //variables required for parsing the XML String xmlContent=null; // XML node keys static final String KEY_EXAMSET = "ExamSet"; // parent node static final String KEY_SETID = "SetId"; static final String KEY_SETNAME = "SetName"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_speed_test_exam_name); //checking internet connectivity to download list isOnline_downloadList(); //Showing user full name after login full_name=getFromPreference("user_name"); //textview to show user name showUser=(TextView)findViewById(R.id.speed_username_textView); showUser.setText("Welcome, "+full_name); //spinner exam_list_spinner = (Spinner) findViewById(R.id.speed_examlist_spinner); //adding items to spinners addItemsOnExamListSpinner(); // onclick details button detailsBtn = (Button) findViewById(R.id.speed_exam_details_button); detailsBtn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Toast.makeText(SpeedTestExamNameActivity.this, "Exam List Spinner: "+ String.valueOf(exam_list_spinner.getSelectedItem()), Toast.LENGTH_SHORT).show(); Intent intent = new Intent(SpeedTestExamNameActivity.this, SpeedTestActivity.class); SpeedTestExamNameActivity.this.startActivity(intent); } }); } //getting content from preferences public String getFromPreference(String variable_name) { String preference_return; SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this); preference_return = preferences.getString(variable_name,""); return preference_return; } //check connection public boolean isOnline_downloadList() { ConnectivityManager cm =(ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo netInfo = cm.getActiveNetworkInfo(); if (netInfo != null && netInfo.isConnectedOrConnecting()) { //sending request for login new MyAsyncTask().execute(getFromPreference("student_code")); return true; } //alert box to show internet connection error AlertDialog.Builder Internet_Alert = new AlertDialog.Builder(SpeedTestExamNameActivity.this); // set title Internet_Alert.setCancelable(false); Internet_Alert.setTitle("Attention!"); Internet_Alert.setMessage("This application requires internet connectivity, no internet connection detected"); Internet_Alert.setPositiveButton("Quit", new DialogInterface.OnClickListener() { public void onClick(DialogInterface arg0, int arg1) { Intent intent = new Intent(Intent.ACTION_MAIN); intent.addCategory(Intent.CATEGORY_HOME); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); onQuitPressed(); } }); Internet_Alert.create().show(); return false; } //to remove application from task manager public void onQuitPressed() { int pid = android.os.Process.myPid(); android.os.Process.killProcess(pid); } //=================================================================================================================================== //sending student code to server to get exam list //=================================================================================================================================== private class MyAsyncTask extends AsyncTask<String, Integer, Double>{ @Override protected Double doInBackground(String... params) { // TODO Auto-generated method stub postData(params[0]); return null; } protected void onPostExecute(Double result){ //Toast.makeText(getApplicationContext(), responseBody, Toast.LENGTH_LONG).show(); //Log.i("response: ", responseBody); //processResponce(responseBody); //going to next activity xmlContent=responseBody; parse_ExamList(); } protected void onProgressUpdate(Integer... progress){ } public void postData(String student_code) { // Create a new HttpClient and Post Header HttpClient httpclient = new DefaultHttpClient(); //HttpPost httppost = new HttpPost("http://icaerp.com/AndroidDataService/dataServiceAndroid.asmx/login"); SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(SpeedTestExamNameActivity.this); final String url_first = preferences.getString("URLFirstPart",""); HttpPost httppost = new HttpPost(url_first+"ExamList"); try { // Data that I am sending List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(); nameValuePairs.add(new BasicNameValuePair("StudentCode", student_code)); //nameValuePairs.add(new BasicNameValuePair("Password", passwrd)); httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); // Execute HTTP Post Request httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); HttpResponse response = httpclient.execute(httppost); responseBody = EntityUtils.toString(response.getEntity()); Log.d("result", responseBody); } catch (Throwable t ) { //Toast.makeText( getApplicationContext(),""+t,Toast.LENGTH_LONG).show(); Log.d("Error Time of Login",t+""); } } } //=================================================================================================================================== //END sending EmailAddress and Password to server //=================================================================================================================================== // function to populate SPINNER with exam list from xml void parse_ExamList() { ArrayList<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>(); XMLParser parser = new XMLParser(); //String xml = parser.getXmlFromUrl(URL); // getting XML Document doc = parser.getDomElement(xmlContent); // getting DOM element //count_questions=2; NodeList nl = doc.getElementsByTagName(KEY_EXAMSET); // looping through all item nodes <item> for ( int i = 0; i < nl.getLength();i++) { // while(counter< nl.getLength()) // { // creating new HashMap HashMap<String, String> map = new HashMap<String, String>(); Element e = (Element) nl.item(i); // adding each child node to HashMap key => value //map.put(KEY_EXAMSET, parser.getValue(e, KEY_EXAMSET)); map.put(KEY_SETID, parser.getValue(e, KEY_SETID)); map.put(KEY_SETNAME, parser.getValue(e, KEY_SETNAME)); //Log.i("Set ID: ", parser.getValue(e, KEY_SETID)); //Log.i("Set Name: ", parser.getValue(e, KEY_SETNAME)); menuItems.add(map); } } // add items into exam list spinner dynamically public void addItemsOnExamListSpinner() { List<String> list = new ArrayList<String>(); list.add("Speed Test 150(min) PO Set-01"); ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, list); dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); exam_list_spinner.setAdapter(dataAdapter); } } ``` This is the layout file: ``` <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".SpeedTestExamNameActivity" > <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_centerHorizontal="true" android:layout_marginTop="30dp" android:text="@string/speed_choose_exam" android:textAppearance="?android:attr/textAppearanceLarge" /> <Spinner android:id="@+id/speed_examlist_spinner" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/textView1" android:layout_centerHorizontal="true" android:layout_marginTop="68dp" /> <Button android:id="@+id/speed_exam_details_button" android:layout_width="95dp" android:layout_height="wrap_content" android:layout_below="@+id/speed_examlist_spinner" android:layout_centerHorizontal="true" android:layout_marginTop="36dp" android:text="@string/details" /> <TextView android:id="@+id/speed_username_textView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_alignParentTop="true" android:text="Name Title" android:textAppearance="?android:attr/textAppearanceSmall" /> </RelativeLayout> ``` What should I do to populate the Spinner from the Arraylist returned by the XML parsing method?