/// <summary>
/// Update item size.
/// </summary>
/// <param name="item">Item.</param>
protected static void UpdateItemSize(AccordionItem item)
{
LayoutUtilites.UpdateLayoutsRecursive(item.ContentObjectRect.transform);
item.ContentObjectWidth = LayoutUtilites.IsWidthControlled(item.ContentObjectRect)
? LayoutUtility.GetPreferredWidth(item.ContentObjectRect)
: item.ContentObjectRect.rect.width;
item.ContentObjectHeight = LayoutUtilites.IsHeightControlled(item.ContentObjectRect)
? LayoutUtility.GetPreferredHeight(item.ContentObjectRect)
: item.ContentObjectRect.rect.height;
}
/// <summary>
/// Collapse animation.
/// </summary>
/// <returns>Animation.</returns>
/// <param name="rectTransform">RectTransform.</param>
/// <param name="time">Time.</param>
/// <param name="isHorizontal">Is Horizontal animated width changes; otherwise height.</param>
/// <param name="unscaledTime">Use unscaled time.</param>
/// <param name="actionAfter">Action to run after animation.</param>
public static IEnumerator Collapse(RectTransform rectTransform, float time = 0.5f, bool isHorizontal = false, bool unscaledTime = false, Action actionAfter = null)
{
var layoutElement = Utilites.GetOrAddComponent <LayoutElement>(rectTransform);
var size = isHorizontal
? (LayoutUtilites.IsWidthControlled(rectTransform) ? LayoutUtility.GetPreferredWidth(rectTransform) : rectTransform.rect.width)
: (LayoutUtilites.IsHeightControlled(rectTransform) ? LayoutUtility.GetPreferredHeight(rectTransform) : rectTransform.rect.height);
var end_time = Utilites.GetTime(unscaledTime) + time;
while (Utilites.GetTime(unscaledTime) <= end_time)
{
var t = 1 - ((end_time - Utilites.GetTime(unscaledTime)) / time);
var new_size = Mathf.Lerp(size, 0, t);
if (isHorizontal)
{
rectTransform.SetSizeWithCurrentAnchors(RectTransform.Axis.Horizontal, new_size);
layoutElement.preferredWidth = new_size;
}
else
{
rectTransform.SetSizeWithCurrentAnchors(RectTransform.Axis.Vertical, new_size);
layoutElement.preferredHeight = new_size;
}
yield return(null);
}
// return size back for future use
if (isHorizontal)
{
rectTransform.SetSizeWithCurrentAnchors(RectTransform.Axis.Horizontal, size);
layoutElement.preferredWidth = size;
}
else
{
rectTransform.SetSizeWithCurrentAnchors(RectTransform.Axis.Vertical, size);
layoutElement.preferredHeight = size;
}
if (actionAfter != null)
{
actionAfter();
}
}