using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public static class UIHelper
{
    public static void AddScrollText(Text prefab, RectTransform contentRoot, string text, MScrollRect scrollRect)
    {
        if (contentRoot == null)
            return;

        var listItem = GameObject.Instantiate<Text>(prefab, contentRoot, false);
        listItem.text = text;

        if (scrollRect != null && scrollRect.isActiveAndEnabled)
            scrollRect.StartCoroutine(ScrollToBottom(scrollRect));
    }

    public static IEnumerator ScrollToBottom(MScrollRect scrollRect)
    {
        yield return null;

        if (scrollRect != null && scrollRect.isActiveAndEnabled && !scrollRect.isDrag)
            scrollRect.normalizedPosition = new Vector2(0, 0);
    }
}