using BitStrap;
using UnityEngine;
using UnityEngine.UI;

public class LayoutDynamicFix : MonoBehaviour
{
	public VerticalLayoutGroup layout;

	public RectTransform rectTransform;

	public RectTransform scrollRectTransform;

	public ScrollRect scrollRect;

	public Scrollbar scrollbar;

	public Vector2 bottomParameter = Vector2.zero;

	private void Start()
	{
		Refresh();
	}

	private void OnEnable()
	{
		Refresh();
	}

	[Button]
	public void Refresh()
	{
		Transform[] componentsInChildren = base.transform.GetComponentsInChildren<Transform>(false);
		int num = 0;
		for (int i = 0; i < componentsInChildren.Length; i++)
		{
			if (componentsInChildren[i].parent == base.transform)
			{
				num++;
			}
		}
		layout.spacing = 0f;
		rectTransform.sizeDelta = new Vector2(rectTransform.sizeDelta.x, (float)num * bottomParameter.x);
		scrollRectTransform.sizeDelta = new Vector2(scrollRectTransform.sizeDelta.x, rectTransform.sizeDelta.y);
		float value = scrollbar.value;
		if (value < 1f)
		{
			scrollbar.value += 0.01f;
		}
		else
		{
			scrollbar.value -= 0.01f;
		}
		scrollbar.value = value;
		scrollRect.CalculateLayoutInputVertical();
		scrollRect.StopMovement();
		Canvas.ForceUpdateCanvases();
	}
}