android - Fragments inside ViewPager dissapear when orientation changes -

i have read several posts (http://tinyurl.com/pb8es74, http://tinyurl.com/p9pcfcv...) cannot find solution.

i have mainactivity loads layout containing viewpager 3 fragments (which have different layouts depending on orientation).

i have added feature activity not destroyed when orientation changes might have dialogs or popips opened:

android:configchanges="keyboardhidden|orientation|screensize|screenlayout|uimode" 

therefore, have overwritten method "onconfigurationchanged" calls method loadlayout, regarding view made:

 private void loadlayout() {     setcontentview(r.layout.layout_main_activity);      pager = (viewpager) this.findviewbyid(r.id.pager);     pager.setpagetransformer(true, new depthpagetransformer());      adapter = new myfragmentpageradapter(getsupportfragmentmanager());     adapter.addfragment(fragment1.getinstance());     adapter.addfragment(fragment2.getinstance());     adapter.addfragment(fragment3.getinstance());      pager.setadapter(adapter);     pager.setoffscreenpagelimit(2);      //media controllers     imgmediacontroller= (imagebutton) findviewbyid(r.id.media_controller);      imgmediacontroller.setonclicklistener(new view.onclicklistener() {         public void onclick(view v) {             [...]         }     });      imgvolumecontroller= (imagebutton) findviewbyid(r.id.volume_controller);     gm.setimgvolumecontroller(imgvolumecontroller);      imgvolumecontroller.setonclicklistener(new view.onclicklistener() {         public void onclick(view v) {             [...]         }     }); } 

the code fragments equal:

public class fragmentnature extends fragment {  private static fragmentnature instance; private soundmanager sm; private view rootview; hashtable<string, imagebutton> h_images; private handler repeatupdatehandler = new handler(); private toast volumetoast;   public static fragmentnature getinstance() {     if (instance == null)         instance = new fragmentnature();     return instance; }  public void nullinstance() {     instance=null; }  public fragmentnature(){     h_images=new hashtable<string,imagebutton>(); }  public void oncreate(bundle savedinstancestate) {     log.d("naturing", "on create->estoy en el fragment nature");     super.onactivitycreated(savedinstancestate);     sm=soundmanager.getinstance(); }  public view oncreateview(layoutinflater inflater, viewgroup container,                          bundle savedinstancestate) {       rootview=null;     log.d("naturing", "on createview->estoy en el fragment nature");     rootview = inflater.inflate(r.layout.fragment_nature, container, false);      final imagebutton imgrain= (imagebutton) rootview.findviewbyid(r.id.n_rain);     h_images.put("n_rain",imgrain);     imgrain.setimageresource(r.drawable.n_rainsel);      final imagebutton imgriver= (imagebutton) rootview.findviewbyid(r.id.n_river);     imgriver.setimageresource(r.drawable.n_riversel);      final imagebutton imgwave= (imagebutton) rootview.findviewbyid(r.id.n_wave);     h_images.put("n_wave",imgwave);     imgwave.setimageresource(r.drawable.n_wavesel);      final imagebutton imgwind= (imagebutton) rootview.findviewbyid(r.id.n_wind);     h_images.put("n_wind", imgwind);     imgwind.setimageresource(r.drawable.n_windsel);      final imagebutton imgfire= (imagebutton) rootview.findviewbyid(r.id.n_fire);     h_images.put("n_fire", imgfire);     imgfire.setimageresource(r.drawable.n_firesel);      final imagebutton imgtree= (imagebutton) rootview.findviewbyid(r.id.n_tree);     h_images.put("n_tree", imgtree);     imgtree.setimageresource(r.drawable.n_treesel);      final imagebutton imgstorm= (imagebutton) rootview.findviewbyid(r.id.n_storm);     h_images.put("n_storm", imgstorm);     imgstorm.setimageresource(r.drawable.n_stormsel);      final imagebutton imgdrop= (imagebutton) rootview.findviewbyid(r.id.n_drop);     h_images.put("n_drop", imgdrop);     imgdrop.setimageresource(r.drawable.n_dropsel);      final imagebutton imgdeepsea= (imagebutton) rootview.findviewbyid(r.id.n_deepsea);     h_images.put("n_deepsea", imgdeepsea);     imgdeepsea.setimageresource(r.drawable.n_deepseasel);      return rootview; }  private boolean isnetworkavailable(){     context context=applicationmanager.getappcontext();     connectivitymanager connectivitymanager=             (connectivitymanager) context.getsystemservice(context.connectivity_service);     networkinfo activenetworkinfo= connectivitymanager.getactivenetworkinfo();     return activenetworkinfo != null && activenetworkinfo.isconnected(); }  public void changeimagestatus(string sound, int imgid){     log.d("naturing", "fragmentnature::changeimagestatus  | sound= " + sound + "  imgid=" + imgid);     h_images.get(sound).setimageresource(imgid); } 

}

the problem when orientation changes, mainactivity layout correctly loaded, viewpager not. in fact dissapears , nothing can seen in place. anyway, viewpager there able go through , reach end (i know because can see blue sign when reach end of menu , so).

i have tried call oncreateview method of fragments nothing changes.

any idea? , kind regards

edit 1

if take out "pager.setoffscreenpagelimit(2);", after orientation changes, fragment 1 , fragment 3 visible when scroll viewpager while, fragment 2 not appear in case. know not in case gives hint anyone.

edit 2

if take out line in manifest, works ok calls oncreateview of mainactivity , fragment. need line in manifest.

in end did dialogfragments, because needed go ahead. anyway, great if knows how overcome problem in way explained in question future developments.

thanks