android - ItemTouchHelper startSwipe not working -

i tried use startswipe within adapter, seems not working. strangely, when tried swipe finger manually, worked. startswipe not work when clicked on of button inside holder. need on this~

this called startswipe (in oncreateviewholder method).

final viewholder holder = new viewholder(rootview); holder.rightitemlayout.setonclicklistener(new view.onclicklistener() {     @override     public void onclick(view view) {         mitemtouchhelper.startswipe(holder);     } }); 

this how setup itemtouchhelper:

mitemtouchhelper = new itemtouchhelper(new itemtouchhelper.simplecallback(0, itemtouchhelper.left) {     @override     public boolean onmove(recyclerview recyclerview, recyclerview.viewholder viewholder, recyclerview.viewholder target) {         return true;     }      @override     public void onswiped(recyclerview.viewholder viewholder, int direction) {      } }); 

how itemtouchhelper attached recyclerview:

recyclerview.layoutmanager mlayoutmanager = new linearlayoutmanager(getapplicationcontext()); recyclerview.setlayoutmanager(mlayoutmanager); recyclerview.setitemanimator(new defaultitemanimator());  categoryadapter adapter = new categoryadapter(this, items); recyclerview.setadapter(adapter); adapter.getitemtouchhelper().attachtorecyclerview(recyclerview);