android - ViewPager swipe issue when back press -

here trying move next screen @ view pager last position..and moving .but when try swipe last position ,it moves next screen.i need move next screeen when view pager @ last position.

@override public void onpagescrollstatechanged(int state) {          //viewpager swipe   lastpagechange = false;   int lastidx = viewpager.getadapter().getcount() - 1;   curitem = viewpager.getcurrentitem();   if (curitem==lastidx && state==1 && lastpagechange==false ) {     lastpagechange = true;     intent main=new intent(top3.this,skipactivity.class);     startactivity(main);     finish();   } else {     lastpagechange = false;   }     } 

this answer viewpager when seen last position swipe again forward go next activity. viewpager.onpagechangelistener pagerlistener = new viewpager.onpagechangelistener() { boolean lastpagechange = false;

                @override                 public void onpagescrolled(int position, float positionoffset, int positionoffsetpixels) {                     int lastidx = book_adapt.getcount() - 1;                      log.d("testing", "pos:" + position);                     if (lastpagechange && position == lastidx){                         intent main = new intent(top3.this, skipactivity.class);                         startactivity(main);                         finish();                     }                  }                  @override                 public void onpageselected(int position) {                     // pgtext.setcurrentitem(i/2);                     viewpagerset(position);                 }                  @override                 public void onpagescrollstatechanged(int state) {                     int lastidx = book_adapt.getcount() - 1;                      int curitem = viewpager.getcurrentitem();                     if (curitem == lastidx /*&& lastpos==lastidx*/ && state == 1)                         lastpagechange = true;                     else lastpagechange = false;                 }             };              viewpager.addonpagechangelistener(pagerlistener);