69 lines
2.2 KiB
C#
69 lines
2.2 KiB
C#
/// Credit Ziboo
|
|
/// Sourced from - http://forum.unity3d.com/threads/free-reorderable-list.364600/
|
|
|
|
using System.Collections;
|
|
using System.Collections.Generic;
|
|
|
|
namespace UnityEngine.UI.Extensions
|
|
{
|
|
public class ReorderableListContent : MonoBehaviour
|
|
{
|
|
private List<Transform> _cachedChildren;
|
|
private List<ReorderableListElement> _cachedListElement;
|
|
private ReorderableListElement _ele;
|
|
private ReorderableList _extList;
|
|
private RectTransform _rect;
|
|
|
|
private void OnEnable()
|
|
{
|
|
if(_rect)StartCoroutine(RefreshChildren());
|
|
}
|
|
|
|
|
|
public void OnTransformChildrenChanged()
|
|
{
|
|
if(this.isActiveAndEnabled)StartCoroutine(RefreshChildren());
|
|
}
|
|
|
|
public void Init(ReorderableList extList)
|
|
{
|
|
_extList = extList;
|
|
_rect = GetComponent<RectTransform>();
|
|
_cachedChildren = new List<Transform>();
|
|
_cachedListElement = new List<ReorderableListElement>();
|
|
|
|
StartCoroutine(RefreshChildren());
|
|
}
|
|
|
|
private IEnumerator RefreshChildren()
|
|
{
|
|
//Handle new chilren
|
|
for (int i = 0; i < _rect.childCount; i++)
|
|
{
|
|
if (_cachedChildren.Contains(_rect.GetChild(i)))
|
|
continue;
|
|
|
|
//Get or Create ReorderableListElement
|
|
_ele = _rect.GetChild(i).gameObject.GetComponent<ReorderableListElement>() ??
|
|
_rect.GetChild(i).gameObject.AddComponent<ReorderableListElement>();
|
|
_ele.Init(_extList);
|
|
|
|
_cachedChildren.Add(_rect.GetChild(i));
|
|
_cachedListElement.Add(_ele);
|
|
}
|
|
|
|
//HACK a little hack, if I don't wait one frame I don't have the right deleted children
|
|
yield return 0;
|
|
|
|
//Remove deleted child
|
|
for (int i = _cachedChildren.Count - 1; i >= 0; i--)
|
|
{
|
|
if (_cachedChildren[i] == null)
|
|
{
|
|
_cachedChildren.RemoveAt(i);
|
|
_cachedListElement.RemoveAt(i);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} |