Unity3D VidoePlayer 加载StreamingAssets下视频

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.Video;

public class VideoPlayerControl : MonoBehaviour
{
public VideoPlayer videoPlayer;
[SerializeField]
string format = ".mp4";
[SerializeField]
string videoName = "";
[SerializeField]
string foldPath;
[SerializeField]
RawImage rawImage;

private void Awake()
{
if (!rawImage)
{

}
}

private void Start()
{
videoPlayer.url = GetFilePath(foldPath, videoName, format);

}

private void OnGUI()
{
if (GUILayout.Button("Play"))
{
videoPlayer.Play();
rawImage.texture = videoPlayer.texture;
}
}

string GetFilePath(string foldPath, string fileName, string fileFormat = ".mp4")
{
string filePath;

#if UNITY_IPHONE
if (!string.IsNullOrEmpty(foldPath))
{
filePath="file://"+Application.dataPath + "/Raw/"+foldPath+"/"+fileName+fileFormat;
}
else
{
filePath="file://"+Application.dataPath + "/Raw/"+fileName+fileFormat;
}

#endif
if (!string.IsNullOrEmpty(foldPath))
{
filePath = Application.dataPath + "/StreamingAssets/" + foldPath + "/" + videoName + fileFormat;
}
else
{
filePath = Application.dataPath + "/StreamingAssets/" + videoName + fileFormat;
}

return filePath;
}

}