android - get the start moveing int and the end moving int in recyclerview the same -


i had strange problem recyclerview , ontouchlistener, i'm trying move items of recyclerview through itemtouchhelper.callback callbacks (onmove, clearview), problem in ontouchlistener when trying place of action_down in order correct viewitem moved , place of action_up in order place move to, got same position number when trying move bigger position small position , movement doesn't happen, unlike when try move small position bigger position works correctly , items moved without no problem. here code on touch

      recyclerview.setontouchlistener(new view.ontouchlistener() {         @override         public boolean ontouch(view v, motionevent event) {             switch (event.getaction())             {                 case action_move:                     if(first==0)                     {         start=recyclerview.getchildviewholder(recyclerview.findchildviewunder(event.getx(), event.gety())).getadapterposition();                         log.e("filter1 start",start+"");                         first=1;                     }                     else {                         end = recyclerview.getchildviewholder(recyclerview.findchildviewunder(event.getx(), event.gety())).getadapterposition();                         log.e("filter1 end",end+"");                     }             }             return false;         }     });

and here code move items callback function 

     @override    public void itemtouchonmove(int oldposition, int newposition) {     list.add(newposition,list.remove(oldposition));    adapter.notifyitemmoved(oldposition,newposition);     adapter.notifydatasetchanged();  }

and here callback class

public class myitemtouchhelpercallback extends itemtouchhelper.callback {  callbackitemtouch callbackitemtouch; // interface  public myitemtouchhelpercallback(callbackitemtouch callbackitemtouch){     this.callbackitemtouch = callbackitemtouch; }  @override public boolean islongpressdragenabled() {     return true; }  @override public boolean isitemviewswipeenabled() {     return true; // swiped disabled }  @override public int getmovementflags(recyclerview recyclerview, recyclerview.viewholder viewholder) {     int dragflags = itemtouchhelper.right|itemtouchhelper.left|itemtouchhelper.up | itemtouchhelper.down|itemtouchhelper.action_state_drag|itemtouchhelper.action_state_swipe; // movements drag     return makeflag( itemtouchhelper.action_state_drag , dragflags); // parameter, action drag , flags drag }  @override public boolean onmove(recyclerview recyclerview, recyclerview.viewholder viewholder, recyclerview.viewholder target) {     return true; }   @override public void onswiped(recyclerview.viewholder viewholder, int direction) {     // swiped disabled }  @override public void clearview(recyclerview recyclerview, recyclerview.viewholder viewholder) {     super.clearview(recyclerview, viewholder);     if(start!=end && start!=-1 && end!=-1) {         callbackitemtouch.itemtouchonmove(start, end);         first=0;     } }

}

for example simplify problem when try move 1 pos 5 pos got start=1 , end=5 , move happen when try move item 10 8 got start=10 , end=10 , make movement doesn't happen although dragged item in 8 position doesn't sense this.


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