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copied!<p>I have found the answer just to reinstantiate the adapter after making the necessary changes. The edited code is here.</p> <h2>MainActivity.java</h2> <pre><code>public class MainActivity extends FragmentActivity { SectionsPagerAdapter mSectionsPagerAdapter; static int current, listItem; static String TAG = "MainActivity"; static boolean flag = false; /** * The {@link ViewPager} that will host the section contents. */ static ViewPager mViewPager; static ArrayList<DummySectionFragment> FragmentList; static ArrayList<String> titles; static FragmentManager fragManager; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); init(); } public void init() { FragmentList = new ArrayList<DummySectionFragment>(); titles = new ArrayList<String>(); mViewPager = (ViewPager) findViewById(R.id.pager); fragManager = getSupportFragmentManager(); mSectionsPagerAdapter = new SectionsPagerAdapter(fragManager); mViewPager.setAdapter(mSectionsPagerAdapter); titles.add(0, "Main Categories"); } public void addPage(final int position, String file, String tag) { DummySectionFragment fragment = new DummySectionFragment(); Bundle args = new Bundle(); args.putString(DummySectionFragment.ARG_FILE_NAME, file); args.putString(DummySectionFragment.ARG_FILE_TAG, tag); args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, position); fragment.setArguments(args); try { FragmentList.set(position, fragment); } catch (IndexOutOfBoundsException e) { FragmentList.add(position, fragment); } catch (Exception e) { e.printStackTrace(); } } public void destroyFragment(int position) { SectionsPagerAdapter pagerAdapter = (SectionsPagerAdapter) mViewPager .getAdapter(); pagerAdapter.destroyItem(mViewPager, position, FragmentList.get(position)); pagerAdapter.notifyDataSetChanged(); } public void addFragment(int position, Object object) { SectionsPagerAdapter pagerAdapter = (SectionsPagerAdapter) mViewPager .getAdapter(); pagerAdapter.notifyDataSetChanged(); } public void NextScreen(int position, String title, String file, String tagname) { if (FragmentList.size() > position - 1) { for (int i = FragmentList.size() - 1; i > position; i--) { titles.remove(i); FragmentList.remove(i); } titles.trimToSize(); FragmentList.trimToSize(); } titles.add(position, title); addPage(position, file, tagname); mViewPager.setAdapter(new SectionsPagerAdapter(fragManager)); mViewPager.setCurrentItem(position); } /** * A {@link FragmentPagerAdapter} that returns a fragment corresponding to * one of the sections/tabs/pages. */ public class SectionsPagerAdapter extends FragmentStatePagerAdapter { public SectionsPagerAdapter(FragmentManager fm) { super(fm); addPage(0, "catlist.xml", "pid-0"); } @Override public Fragment getItem(int position) { return FragmentList.get(position); } public void setId() { } @Override public int getCount() { return FragmentList.size(); } @Override public int getItemPosition(Object object) { return FragmentList.indexOf(object); } @Override public CharSequence getPageTitle(int position) { Log.v("titlePosition", position + ""); return titles.get(position); } } /** * A dummy fragment representing a section of the app, but that simply * displays dummy text. */ public static class DummySectionFragment extends Fragment { /** * The fragment argument representing the section number for this * fragment. */ public static ArrayList<Xml_Item_Data> resultList = new ArrayList<Xml_Item_Data>(); public static final String ARG_SECTION_NUMBER = "section_number"; public static final String ARG_FILE_NAME = "file_name"; public static final String ARG_FILE_TAG = "tag_name"; ListView parent_list; public static Bundle setValues; public DummySectionFragment() { } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { savedInstanceState = this.getArguments(); parent_list = new ListView(getActivity()); String file_name = savedInstanceState.getString(ARG_FILE_NAME); String tag_name = savedInstanceState.getString(ARG_FILE_TAG); int current_level = savedInstanceState.getInt(ARG_SECTION_NUMBER); PullParser pull = new PullParser(getActivity()); pull.pullXml(file_name, tag_name); ListAdapter list_Creator = new ListAdapter(getActivity(), PullParser.Xml_Tag_Info, current_level); parent_list.setAdapter(list_Creator); return parent_list; } } } </code></pre>

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