_recyclerView = (RecyclerView) findViewById(R.id.groupsRecyclerView);
        _recyclerView.setHasFixedSize(true);

        _recycleViewLayoutManager = new LinearLayoutManager(this);
        _recyclerView.setEnabled(true);
        _recyclerView.addItemDecoration(new DividerItemDecoration(this, LinearLayoutManager.VERTICAL));

        //adding group data
        _recycleViewAdapter = new GroupAdapter(groupsItem,new OnItemClickListener(){
            @Override
            public void onItemClick(Group item) {

                selectGroup(item.getGroupID() , item.getGroupName(), String.valueOf(2));

            }
            });

        _recycleViewAdapter.notifyDataSetChanged();
        _recyclerView.setLayoutManager(_recycleViewLayoutManager);
        _recyclerView.setAdapter(_recycleViewAdapter);