Unity3d外部加載音頻，視頻，圖片等資源 及根據路徑獲取制定格式的文件

1.根據路徑獲取制定文件類型的文件：

這里寫一個類，調用了打開路徑的方法：
using UnityEngine;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;

public class SetPath : MonoBehaviour
{
     public static string pic;
     string path;

     void Awake ()
     {
          //設置路徑，這里的路徑是導出包的exe路徑下//
          path=Application.dataPath+@"/../Resources";
         
          //這里新建隊列，調用訪問文件的方法，獲取其返回的文件名隊列//
          //第一個參是訪問路徑，第二個參是文件格式//
          List<String> list_pic=GetDirFiles(path+@"/Picture/test","*.png");
         
          foreach (string item in list_pic)
        {
               //item是文件名，獲取文件名后返回完整路徑//
               pic=path+@"/Picture/GiftCard/"+item.ToString()+".png";
        }
     }
    
     public List<string> GetDirFiles(string DirFullPath, string SearchPattern)
    {
        if (Directory.Exists(DirFullPath) == true)
        {
            List<string> list = new List<string>();
            //獲取當前目錄下指定文件類型的文件列表//
            string[] stringList = Directory.GetFiles(DirFullPath,SearchPattern);

            foreach (string str in stringList)
            {
                string fileName;
                fileName = System.IO.Path.GetFileNameWithoutExtension(str);
                list.Add(fileName);

            }
            return list;
        }
        else
        {
            return null;
        }
    }
}

2.外部加載音頻
using UnityEngine;
using System.Collections;

public class Exposure_voice : MonoBehaviour {
    
     public string url_voice;
     public static AudioClip myclip;//設置靜態聲音資源，便於傳遞//
    
     void Start () {
          //外部加載聲音的路徑，拼接www下載文件路徑//
         //注意，www加載的外部音視頻都必須是ogg格式額//
          url_voice="file://"[e-mail];
    
          StartCoroutine("DownloadVoice");
     }

     IEnumerator DownloadVoice()
     {
          WWW w=new WWW(url_voice);
          yield return w;
          //將聲音資源賦值為外部加載的聲音即可//
          myclip=w.audioClip;
     }
}

3.外部加載視頻
using UnityEngine;
using System.Collections;

public class Exposure_video : MonoBehaviour {

     public GameObject video;
     public string video_url;
    
     MovieTexture movie_tex;
     Material tex;
     AudioSource audio;
    
     float temp=0;
    
     void Start ()
     {
          video_url="file://"[e-mail]_name_through;
         
          StartCoroutine("VideoDownload");

          Invoke("Initial_effect",9f);
     }
    
     IEnumerator VideoDownload()
     {
          WWW www=new WWW(video_url);
          yield return www;
          movie_tex=www.movie;
          video.renderer.material.mainTexture = movie_tex;
          audio.clip=www.GetAudioClip(false,true,AudioType.OGGVORBIS);
          audio.Play();
          movie_tex.Play();
     }
}

4.外部加載圖片
using UnityEngine;
using System.Collections;

public class Exposure_Pic : MonoBehaviour {
    
     public GameObject pic;
    
     public string url_pic_Discount;
    
     #region Use this for initialization
     void Start ()
     {
          url_pic_Discount="file://"[e-mail]_name_gift;
         
          StartCoroutine("Pic_Download");
     }
     #endregion
    
    
     IEnumerator Pic_Download()
     {
          WWW www=new WWW(url_pic_Discount);
          yield return www;
          pic.renderer.material.mainTexture=www.texture;
     }
}

這樣就可以很容易的加載外部可更換的資源，並且不需要等待長時間的導入了。。。。
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作者：御雪妃舞
來源：CSDN
原文：https://blog.csdn.net/nanggong/article/details/38276521
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