Android Data Binding ListView item fails onClick -

i have listview adapter :

adapter

public class menuadapter extends baseadapter{      private list<viewdatabinding> bindings = new arraylist<>();      public menuadapter(){         firstbinding binding = firstbinding.inflate(inflater);          firstmodel model = ...;         binding.setmodel(model);         bindings.add(binding);           secondbinding secondbinding = secondbinding.inflate(inflater);          secondmodel secondmodel = ...;          binding.setmodel(secondmodel);         bindings.add(secondbinding);      }      ...      @override     public view getview(int position, view convertview, viewgroup parent) {         return bindings.get(position).getroot();     }      ...   } 

first.xml(first layout binding)

    <?xml version="1.0" encoding="utf-8"?>     <layout xmlns:android="http://schemas.android.com/apk/res/android">         <data>             ...         </data>         <relativelayout             android:layout_width="match_parent"             android:layout_height="@dimen/menu_row_height"             android:background="@color/menu_application_background"                 >     ...             <button                  ...                 android:onclick="@{model.onclick}"                 />             </relativelayout>         </layout> 

actually onclick not working expected...clicking on button, doesn't call onclick model..but after trying scroll list..it calls onclick missed calls (ex. can click on button 3 times in row...but onclick not called. after scrolling listview, onclick called 3 times(missed ones)).

what's wrong here ? solutions?

p.s. setting onitemclicklistener listview not want.