[游戏开发]unity 下载视频

using System.Collections;
using System.IO;
using UnityEngine;
using UnityEngine.Video;

public class Test : MonoBehaviour
{
    private FileStream fs;
    private string path = null;
    public VideoPlayer video;
    void Awake()
    {
        StartCoroutine(DownOrLoadVideo("汉宫秋", "http://kanyikan.oss-cn-shanghai.aliyuncs.com/kanrongmei/%E6%B1%89%E5%85%B3%E7%B4%AB%E7%A0%82.mp4"));
        //如果物体是隐藏的 执行不了协程  可以用全局继承了MONO的单列来调用协程就不会报错了
        //MainController.GetInstance().StartCoroutine(DownOrLoadVideo("视频名字", "http://kanyikan.oss-cn-shanghai.aliyuncs.com/kanrongmei/%E6%B1%89%E5%85%B3%E7%B4%AB%E7%A0%82.mp4"));
    }
    /// <summary>
    /// 加载视频并下载
    /// </summary>
    /// <param name="itm">ImgTargetMgr</param>
    /// <param name="downloadVideoName">识别图名</param>
    /// <param name="videoURL">视频网络地址</param>
    IEnumerator DownOrLoadVideo(string downloadVideoName, string videoURL)
    {
#if UNITY_EDITOR
        path = Application.dataPath + @"/Video";
#elif UNITY_IPHONE || UNITY_ANDROID
            string[] src = new string[1] { "Android" };
            string[] srcs = Application.persistentDataPath.Split(src, System.StringSplitOptions.None);
            path = srcs[0] + @"/Video";
#endif
        if (!Directory.Exists(path))
        {
            Directory.CreateDirectory(path);
        }
        Debug.Log("下载" + path);
        //是否下载
        if (File.Exists(path + @"/" + downloadVideoName + ".mp4"))
        {
            //本地加载
            path += "/" + downloadVideoName + ".mp4";
            video.url = path;//赋值就能播放了
        }
        else
        {
            //网络加载
            WWW www = new WWW(videoURL);
            yield return www;
            Debug.Log(www.error);
            if (!string.IsNullOrEmpty(www.error))
            {
                Debug.Log("请求失败");
            }
            else
            {
                fs = File.Create(path + "/" + downloadVideoName + ".mp4"); //path为你想保存文件的路径。
                fs.Write(www.bytes, 0, www.bytes.Length);
                fs.Close();
                path += "/" + downloadVideoName + ".mp4";
                video.url = path;//赋值就能播放了 
                Debug.Log("视频下载成功");
            }

        }
    }
}

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