private AssetReferenceDropdownFolderItem CreateParentDropdownItem(AssetReferenceDropdownFolderItem root, AssetReferenceDropdownAssetItem child)
{
string childFolderPath = child.FolderPath;
//获取child的递进式父级文件夹相对路径
string[] childProgressiveAssetFolderPath = PathUtility.GetProgressiveAssetFolderPath(childFolderPath);
AssetReferenceDropdownFolderItem lastParent = root;
for (int i = 0; i < childProgressiveAssetFolderPath.Length; i++)
{
AssetReferenceDropdownFolderItem advancedDropdownItem = GetParentDropdownItem(lastParent, childProgressiveAssetFolderPath[i]);
if (advancedDropdownItem == null)
{
var parent = new AssetReferenceDropdownFolderItem(childProgressiveAssetFolderPath[i], false);
lastParent.AddFolder(parent);
lastParent = parent;
}
else
{
lastParent = advancedDropdownItem;
}
}
return(lastParent);
}
