title: How to delete items on the listview in Fragments?
body: <p>I want to delete the items from the fragments. When long click on the items than a action bar is changed and a delete button appears. I click on the delete button The item seems to be deleted from the list view. But when I restart the app the item appears again.</p>
  
  <pre><code>public class ReadFragment extends Fragment {
      ListView spinner;
      TextView empty;
      String selected;
      List&lt;String&gt; list;
      String[] filenames;
  
      @Override
      public View onCreateView(LayoutInflater inflater, ViewGroup container,
              Bundle savedInstanceState) {
  
          View rootView = inflater.inflate(R.layout.fragment_read, container,
                  false);
          spinner = (ListView) rootView.findViewById(R.id.spinner2);
  
          this.spinner.setEmptyView(rootView.findViewById(R.id.emptyElement));
          getFilenames();
  
      getactionbar();
  
          return rootView;
  
      }
  
      private void getFilenames() {
          // TODO Auto-generated method stub
          filenames = getActivity().fileList();
          list = new ArrayList&lt;String&gt;();
          for (int i = 0; i &lt; filenames.length; i++) {
              // Log.d("Filename", filenames[i]);
              list.add(filenames[i]);
          }
          ArrayAdapter&lt;String&gt; filenameAdapter = new ArrayAdapter&lt;String&gt;(
                  getActivity(), android.R.layout.simple_list_item_1,
                  android.R.id.text1, list);
  
          spinner.setAdapter(filenameAdapter);
          spinner.setOnItemClickListener(new OnItemClickListener() {
              @Override
              public void onItemClick(AdapterView&lt;?&gt; parent, View view,
                      int position, long id) {
  
                  selected = ((TextView) view).getText().toString();
  
                  Intent intent = new Intent(getActivity(), ReadData.class);
                  intent.putExtra("key", selected);
  
                  startActivity(intent);
  
              }
          });
  
      }
      private void getactionbar() {
          // TODO Auto-generated method stub
          spinner.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL);
          spinner.setMultiChoiceModeListener(new MultiChoiceModeListener() {
  
              @Override
              public void onItemCheckedStateChanged(ActionMode mode, int position,
                                                    long id, boolean checked) {
                  // Here you can do something when items are selected/de-selected,
                  // such as update the title in the CAB
              }
  
              @Override
              public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
                  // Respond to clicks on the actions in the CAB
                  switch (item.getItemId()) {
                      case R.id.ic_action_discard:
  
                          deletefiles();
  
  
                          Toast.makeText(getActivity(), "Deleted", Toast.LENGTH_LONG).show();
  
                          mode.finish(); // Action picked, so close the CAB
                          return true;
                      default:
                          return false;
                  }
              }
  
              private void deletefiles() {
              // TODO Auto-generated method stub
                 SparseBooleanArray checkedItemPositions = spinner.getCheckedItemPositions();
                   int itemCount = spinner.getCount();
  
                   for(int i=itemCount-1; i &gt;= 0; i--){
                       if(checkedItemPositions.get(i)){
                           filenameAdapter.remove(list.get(i));
                       }
                   }
                   checkedItemPositions.clear();
                  filenameAdapter.notifyDataSetChanged();
  
          }   
  
  
              @Override
              public boolean onCreateActionMode(ActionMode mode, Menu menu) {
                  // Inflate the menu for the CAB
                  MenuInflater inflater = mode.getMenuInflater();
                  inflater.inflate(R.menu.context, menu);
                  return true;
              }
  
              @Override
              public void onDestroyActionMode(ActionMode mode) {
                  // Here you can make any necessary updates to the activity when
                  // the CAB is removed. By default, selected items are deselected/unchecked.
              }
  
              @Override
              public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
                  // Here you can perform updates to the CAB due to
                  // an invalidate() request
                  return false;
              }
          });
  
      }
  }
  </code></pre>
  
  <p>Can anyone help me deleting the item forever, I mean once it is deleted it should not appear in the listview again when the app is relaunched. </p>