private void AddButtons()
    {
        for (int i = 0; i < itemList.Count; i++)
        {
            Item       item      = itemList[i];
            GameObject newButton = objectPool.GetObject();
            newButton.transform.SetParent(this.contentPanel);

            ButtonScript button = newButton.GetComponent <ButtonScript>();
            button.Setup(item, this, this.popupSpawn);
        }
    }