final Response.Listener<String> onPostsLoaded = new Response.Listener<String>() {
    @Override
    public void onResponse(String response) {
        dialog.dismiss();
        mainIcon.setVisibility(View.GONE);

        userList = Arrays.asList(gson.fromJson(response, User[].class));

        recAdapter = new RecycleViewAdapter(MainActivity.this ,userList);
        recyclerView.addItemDecoration(new DividerItemDecoration(MainActivity.this, LinearLayoutManager.VERTICAL));
        recyclerView.setAdapter(recAdapter);
        int num = recAdapter.goodCount;

        Snackbar.make(findViewById(android.R.id.content), String.valueOf(num), Snackbar.LENGTH_LONG)
                .show();
    }
};