How to stop Videoview from playing inside a viewPager when fragment is changed -

i want stop videoview playing inside viewpager when fragment change. problem in code when change or next fragment video still playing.

here code main activity class

private void setupviewpager(viewpager viewpager) { viewpageradapter adapter = new viewpageradapter(getsupportfragmentmanager()); adapter.addfragment(new fragmentstepone(), "1"); adapter.addfragment(new fragmentsteptwo(), "2"); viewpager.setadapter(adapter); }  class viewpageradapter extends fragmentstatepageradapter {  private final list<fragment> mfragmentlist = new arraylist<>(); private final list<string> mfragmenttitlelist = new arraylist<>();  public viewpageradapter(fragmentmanager manager) {      super(manager); }  @override public fragment getitem(int position) {     return mfragmentlist.get(position); }  @override public int getcount() {      return mfragmentlist.size(); }   public void addfragment(fragment fragment, string title) {     mfragmentlist.add(fragment);     mfragmenttitlelist.add(title); } 

and here code fragment class

public class fragmentstepone extends fragment{  public fragmentstepone() { }   videoview video;  @override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); }  @override public view oncreateview(layoutinflater inflater, viewgroup container,                      bundle savedinstancestate) { // inflate layout fragment view rootview =  inflater.inflate(r.layout.fragment_step_two, container,        false);  video = (videoview) rootview.findviewbyid(r.id.videoview);  uri uri = uri.parse("android.resource://"+ getactivity().getpackagename()+"/"+ r.raw.video); video.setvideouri(uri);  mediacontroller mc=new mediacontroller(getcontext()); mc.setanchorview(video); video.setmediacontroller(mc); video.requestfocus();    return rootview; } 

please thank in advance