Activity to Fragment <value sending> using interfce

Activity - Fragment(Interface)

//ACTIVITY

      RefreshClick refreshClick;
       public interface  RefreshClick
          {

              void RefreshM();
          }

        ///onclick event

        refreshClick.RefreshM();


        //initialize

        public void setOnBundleSelected(RefreshClick selectedBundle) {
              this.refreshClick = selectedBundle;
          }
//FRAGMENT

 
        ((MainActivity)getActivity()).setOnBundleSelected(new MainActivity.RefreshClick() {
            @Override
            public void RefreshM() {
              //do something....
            }
        });