XML : Android - possible to insert unique parent and unique child items to ExpandableList by using xml array?

So I'm a beginner on android, and after reading some tutorial about ExpandableList online, I've made a FAQ list in my app.

However, I would like to know is it possible to add unique parent and unique child items to ExpandableList by reading xml array? For example with a question array and answer array in the xml, and the answer will appear in the same order of question list, like this:

  <string-array name="faq_question">          <item>Q1</item>          <item>Q2</item>    ...  </string-array>    <string-array name="faq_answer">          <item>A1</item>          <item>A2</item>    ...  </string-array>  

Currently, I have to put the answer string to their respective question manually like this:

ExpandableListDataPump.java

  public class ExpandableListDataPump extends AppCompatActivity {        public static HashMap<String, List<String>> getData() {          HashMap<String, List<String>> expandableListDetail = new HashMap<String, List<String>>();            String q1 = MainActivity.getContext().getResources().getString(R.string.faq_q1);          String q2 = MainActivity.getContext().getResources().getString(R.string.faq_q2);          String q3 = MainActivity.getContext().getResources().getString(R.string.faq_q3);          String a1 = MainActivity.getContext().getResources().getString(R.string.faq_a1);          String a2 = MainActivity.getContext().getResources().getString(R.string.faq_a2);          String a3 = MainActivity.getContext().getResources().getString(R.string.faq_a3);            List<String> qt3 = new ArrayList<String>();          qt3.add(a3);          List<String> qt2 = new ArrayList<String>();          qt2.add(a2);          List<String> qt1 = new ArrayList<String>();          qt1.add(a1);            expandableListDetail.put(q1, qt1);          expandableListDetail.put(q2, qt2);          expandableListDetail.put(q3, qt3);          return expandableListDetail;      }  }  

The adapter - ExpandableListAdapter.java

  public class ExpandableListAdapter extends AnimatedExpandableListView.AnimatedExpandableListAdapter {        private Context context;      private List<String> expandableListTitle;      private HashMap<String, List<String>> expandableListDetail;        public ExpandableListAdapter(Context context, List<String> expandableListTitle, HashMap<String, List<String>> expandableListDetail) {          this.context = context;          this.expandableListTitle = expandableListTitle;          this.expandableListDetail = expandableListDetail;      }        @Override      public Object getChild(int listPosition, int expandedListPosition) {          return this.expandableListDetail.get(this.expandableListTitle.get(listPosition))                  .get(expandedListPosition);      }        @Override      public long getChildId(int listPosition, int expandedListPosition) {          return expandedListPosition;      }        @Override      public View getRealChildView(int listPosition, int expandedListPosition, boolean isLastChild, View convertView, ViewGroup parent) {          final String expandedListText = (String) getChild(listPosition, expandedListPosition);          if (convertView == null) {              LayoutInflater layoutInflater = (LayoutInflater) this.context                      .getSystemService(Context.LAYOUT_INFLATER_SERVICE);              convertView = layoutInflater.inflate(R.layout.activity_help_faq_content, null);          }          TextView expandedListTextView = (TextView) convertView                  .findViewById(R.id.child_list);          expandedListTextView.setText(expandedListText);          return convertView;      }        @Override      public int getRealChildrenCount(int listPosition) {          return this.expandableListDetail.get(this.expandableListTitle.get(listPosition))                  .size();      }        @Override      public Object getGroup(int listPosition) {          return this.expandableListTitle.get(listPosition);      }        @Override      public int getGroupCount() {          return this.expandableListTitle.size();      }        @Override      public long getGroupId(int listPosition) {          return listPosition;      }        @Override      public View getGroupView(int listPosition, boolean isExpanded, View convertView, ViewGroup parent) {          String listTitle = (String) getGroup(listPosition);          if (convertView == null) {              LayoutInflater layoutInflater = (LayoutInflater) this.context.                      getSystemService(Context.LAYOUT_INFLATER_SERVICE);              convertView = layoutInflater.inflate(R.layout.activity_help_faq_title, null);          }          TextView listTitleTextView = (TextView) convertView                  .findViewById(R.id.header_list);          listTitleTextView.setText(listTitle);            ViewFlipper flip = (ViewFlipper) convertView.findViewById(R.id.arrow_flipper);          if (isExpanded) {              flip.setDisplayedChild(1);          } else {              flip.setDisplayedChild(0);          }          return convertView;      }        @Override      public boolean hasStableIds() {          return false;      }        @Override      public boolean isChildSelectable(int listPosition, int expandedListPosition) {          return false;      }  }  

The activity - HelpFaqActivity.java

  public class HelpFaqActivity extends AppCompatActivity {        AnimatedExpandableListView expandableListView;      ExpandableListAdapter expandableListAdapter;      List<String> expandableListTitle;      HashMap<String, List<String>> expandableListDetail;        @Override      protected void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          setContentView(R.layout.activity_help_faq);          setTitle(R.string.help_faq);          ActionBar actionBar = getSupportActionBar();          actionBar.setDisplayHomeAsUpEnabled(true);            expandableListView = (AnimatedExpandableListView) findViewById(R.id.lvExp);          expandableListDetail = ExpandableListDataPump.getData();          expandableListTitle = new ArrayList<String>(expandableListDetail.keySet());          expandableListAdapter = new ExpandableListAdapter(this, expandableListTitle, expandableListDetail);          expandableListView.setAdapter(expandableListAdapter);            expandableListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {              @Override              public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) {                    if (expandableListView.isGroupExpanded(groupPosition)) {                      expandableListView.collapseGroupWithAnimation(groupPosition);                      Log.d("MainActivity", "Collapsing");                  } else {                      expandableListView.expandGroupWithAnimation(groupPosition);                      Log.d("MainActivity", "Expanding");                  }                  return true;              }            });            expandableListView.setOnGroupExpandListener(new ExpandableListView.OnGroupExpandListener() {              @Override              public void onGroupExpand(int groupPosition) {              }          });            expandableListView.setOnGroupCollapseListener(new ExpandableListView.OnGroupCollapseListener() {              @Override              public void onGroupCollapse(int groupPosition) {              }          });            expandableListView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {              @Override              public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) {                  return false;              }          });      }  }  

Please let me know if there are any ways to implement this, or better ways to do the same result. Thanks.