when i changed orientation portrait to landscape i want layout should change for landscape and video is start from same position in android? -

this whole code media player problem when changed orientation video playing beginning should do.i add "android:configchanges="orientation|screensize|keyboardhidden" in menifest. please help

//mediaplayeractivity.java  package com.focusmedica.ud_en_acne;  import android.app.activity; import android.content.context; import android.content.intent; import android.content.res.configuration; import android.graphics.bitmap; import android.graphics.canvas; import android.graphics.color; import android.graphics.matrix; import android.graphics.paint; import android.graphics.path; import android.media.mediametadataretriever; import android.media.mediaplayer; import android.media.mediaplayer.oncompletionlistener; import android.media.thumbnailutils; import android.net.uri; import android.os.bundle; import android.os.environment; import android.os.handler; import android.util.log; import android.view.motionevent; import android.view.view; import android.view.view.onclicklistener; import android.view.viewgroup; import android.widget.imageview; import android.widget.linearlayout; import android.widget.relativelayout; import android.widget.seekbar; import android.widget.textview; import android.widget.videoview;  import java.io.file; import java.io.filenotfoundexception; import java.io.fileoutputstream; import java.io.ioexception; import java.util.arraylist;  public class mediaplayeractivity extends activity implements   seekbar.onseekbarchangelistener { imageview pauseandresume,refresh,next,prev,screenshot,pencil; seekbar videoprogress; private handler mhandler = new handler();; private utilities util; textview current; boolean playflag,istrue=false; videoview videoview; int vduration; linearlayout linear; relativelayout relate; view mview; private paint mpaint; private canvas mcanvas; /*static int[] video_url=new int[]{         r.raw.introduction,r.raw.causes,r.raw.risk_factors,r.raw.types_of_acne,         r.raw.signs_and_symptoms,r.raw.treatment,r.raw.prevention_and_self_care, };*/ int video_url=r.raw.introduction; string path = environment.getexternalstoragedirectory()         + file.separator + "pictures/screenshot.png";  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_play);     //setrequestedorientation(activityinfo.screen_orientation_locked);      videoview=(videoview)findviewbyid(r.id.videoview);     videoprogress=(seekbar)findviewbyid(r.id.seekbar);     videoprogress.setonseekbarchangelistener(this);     pauseandresume=(imageview) findviewbyid(r.id.btnpauseresume);     relate=(relativelayout) findviewbyid(r.id.relate);     linear=(linearlayout)findviewbyid(r.id.linear);     screenshot=(imageview)findviewbyid(r.id.btnscreenshot);     refresh=(imageview)findviewbyid(r.id.btnrefresh);     pencil=(imageview)findviewbyid(r.id.btnpencil);     current=(textview)findviewbyid(r.id.current);     linear.setvisibility(view.invisible);      util = new utilities();      bundle extras = getintent().getextras();     final int position = extras.getint("position");      final uri uri=uri.parse("android.resource://" + getpackagename() + "/"+  video_url);      mediametadataretriever retriever = new mediametadataretriever();     retriever.setdatasource(this, uri.parse("android.resource://" + getpackagename() + "/"+  video_url));     string time = retriever.extractmetadata(mediametadataretriever.metadata_key_duration);     vduration = integer.parseint(time );      relate.setonclicklistener(new onclicklistener() {         @override         public void onclick(view v) {             if (linear.getvisibility() == view.invisible) {                 new handler().postdelayed(new runnable() {                     @override                     public void run() {                         linear.setvisibility(view.visible);                     }                 }, 100);             }else{                 linear.setvisibility(view.invisible);             }         }     });      refresh.setonclicklistener(new onclicklistener() {         @override         public void onclick(view v) {             if (istrue == true) {                 relate.removeview(mview);                 mview = new drawingview(mediaplayeractivity.this);                 relate.addview(mview);             }         }     });      pencil.setonclicklistener(new onclicklistener() {         @override         public void onclick(view v) {             if(istrue==false) {                 mview = new drawingview(mediaplayeractivity.this);                 relate.addview(mview, new viewgroup.layoutparams(relativelayout.layoutparams.match_parent,                         relativelayout.layoutparams.match_parent));                 init();                 istrue=true;             }else if(istrue==true){                 relate.removeview(mview);                 istrue=false;             }         }     });      pauseandresume.setonclicklistener(new onclicklistener() {         @override         public void onclick(view v) {             if (pauseandresume.getdrawable().getconstantstate()== getresources().getdrawable(r.drawable.pause).getconstantstate())             {                 videoview.pause();                 pauseandresume.setimageresource(r.drawable.play1);             }             else             {                 videoview.start();                 pauseandresume.setimageresource(r.drawable.pause);             }         }     });      screenshot.setonclicklistener(new onclicklistener() {         @override         public void onclick(view v) {             bitmap bitmap = takescreenshot(mediaplayeractivity.this,uri);             savebitmap(bitmap);         }     });      playvideo(uri); }  @override public void onprogresschanged(seekbar seekbar, int progress, boolean fromuser) {     //toast.maketext(getapplicationcontext(),"seekbar progress: "+progress, toast.length_short).show();  }  @override public void onstarttrackingtouch(seekbar seekbar) {     mhandler.removecallbacks(mupdatetimetask); }  @override public void onstoptrackingtouch(seekbar seekbar) {     mhandler.removecallbacks(mupdatetimetask);     int totalduration =vduration;     int currentposition = util.progresstotimer(seekbar.getprogress(), totalduration);      // forward or backward seconds     videoview.seekto(currentposition);      // update timer progress again     updateprogressbar(); }  //canvas private void init() {     mpaint = new paint();     mpaint.setdither(true);     mpaint.setcolor(color.red);     mpaint.setstyle(paint.style.stroke);     mpaint.setstrokejoin(paint.join.round);     mpaint.setstrokecap(paint.cap.round);     mpaint.setstrokewidth(3); }   private bitmap takescreenshot(context context, uri uri) {     mediametadataretriever mediametadataretriever = new mediametadataretriever();     try {         mediametadataretriever.setdatasource(context, uri);         bitmap bitmap = mediametadataretriever.getframeattime(videoview.getcurrentposition()*1000);         bitmap mainbitmap= thumbnailutils.extractthumbnail(bitmap, videoview.getwidth(), videoview.getheight(), 2);         bitmap bmoverlay = bitmap.createbitmap(videoview.getwidth(), videoview.getheight(), bitmap.getconfig());         relate.setdrawingcacheenabled(true);         bitmap bitmap1=relate.getdrawingcache();         mcanvas=new canvas(bmoverlay);         mcanvas.drawbitmap(mainbitmap,new matrix(), null);         mcanvas.drawbitmap(bitmap1, 0,0, null);         if(null != mainbitmap)         {             return bmoverlay;         }         return bmoverlay;     } catch (throwable t) {         return null;     } {         try         {             mediametadataretriever.release();         }         catch(runtimeexception e) { }     } }  private void savebitmap(bitmap bitmap) {     fileoutputstream fos;     try {         fos =new fileoutputstream(path);         bitmap.compress(bitmap.compressformat.png, 100, fos);         fos.flush();         fos.close();         sentmail(path);     } catch (filenotfoundexception e) {         log.e("grec", e.getmessage(), e);     } catch (ioexception e) {         log.e("grec", e.getmessage(), e);     } }  private void sentmail(string path) {     intent emailintent = new intent(android.content.intent.action_send);     emailintent.putextra(android.content.intent.extra_email,             new string[]{"p.ashish029@gmail.com"});     emailintent.putextra(android.content.intent.extra_subject,             "acne");     emailintent.putextra(android.content.intent.extra_text,             "screenshot of image");     emailintent.settype("image/jpg");     uri myuri = uri.parse("file://" + path);     emailintent.putextra(intent.extra_stream, myuri);     startactivity(intent.createchooser(emailintent, "send mail..."));  }  public void updateprogressbar() {     mhandler.postdelayed(mupdatetimetask, 100); } private runnable mupdatetimetask = new runnable() {     public void run() {         long totalduration = vduration;         long currentduration = videoview.getcurrentposition();          // displaying total duration time         //total.settext(""+util.millisecondstotimer(totalduration));         // displaying time completed playing         current.settext(""+util.millisecondstotimer(currentduration));         // updating progress bar         int progress = (int)(util.getprogresspercentage(currentduration, totalduration));         //log.d("progress", ""+progress);         videoprogress.setprogress(progress);          // running thread after 100 milliseconds         mhandler.postdelayed(this, 100);     } };  private void playvideo(uri uri) {      if (videoview.isplaying() )     {         videoview.stopplayback();     }      videoview.setvideouri(uri);     videoview.start();     updateprogressbar();     videoview.setoncompletionlistener(new oncompletionlistener() {          @override         public void oncompletion(mediaplayer mp) {             playflag=false;             finish();         }     }); }  //canvas private class drawingview extends view {      private path path;     private bitmap mbitmap;      public drawingview(context context) {         super(context);         path = new path();         mbitmap = bitmap.createbitmap(relate.getwidth(), relate.getheight(), bitmap.config.argb_8888);         canvas mcanvas = new canvas(mbitmap);     }      private arraylist<pathwithpaint> _graphics1 = new arraylist<pathwithpaint>();      @override     public boolean ontouchevent(motionevent event) {         pathwithpaint pp = new pathwithpaint();          if (event.getaction() == motionevent.action_down) {             path.moveto(event.getx(), event.gety());             path.lineto(event.getx(), event.gety());         } else if (event.getaction() == motionevent.action_move) {             path.lineto(event.getx(), event.gety());             pp.setpath(path);             pp.setmpaint(mpaint);             _graphics1.add(pp);         }         invalidate();         return true;     }      @override     protected void ondraw(canvas canvas) {         super.ondraw(canvas);         if (_graphics1.size() > 0) {             canvas.drawpath(                     _graphics1.get(_graphics1.size() - 1).getpath(),                     _graphics1.get(_graphics1.size() - 1).getmpaint());         }     } }  @override public void onconfigurationchanged(configuration newconfig) {     // todo auto-generated method stub     super.onconfigurationchanged(newconfig);     setcontentview(r.layout.activity_play);     oncreate(new bundle());  } } 

android provides way store current states , retrieve them when orientation changes.

override onsaveinstancestate(bundle savedinstancestate) method in activity , save state of video playing,

@override public void onsaveinstancestate(bundle savedinstancestate) {     // save current video progress     savedinstancestate.putlong("videoprogress", videoview.getprogress());      super.onsaveinstancestate(savedinstancestate); } 

and in oncreate() method can retrieve video progress as,

@override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);first      if (savedinstancestate != null) {         currentprogress = savedinstancestate.getlong("videoprogress");         videoview.setprogress(currentprogress);     }     ... }