本文固定连接：http://blog.csdn.net/u013108312/article/details/52712844

WWW实现图片资源显示以及保存和本地加载

using UnityEngine;

using System.Collections;

using System.IO;

using UnityEditor;

enum GetPicType

{

    DownLoad = 0,

    LocalLoad,

}

public class Picture : MonoBehaviour

{

    //这里是本地的ip地址

    string url = "http://127.0.0.1:80000/1.jpg";

    /// <summary>

    /// 网络下载的图片

    /// </summary>

    private Texture2D img = null;

    /// <summary>

    /// 本地图片

    /// </summary>

    private Texture2D img2 = null;

    private bool downloadOK = false;

    void OnGUI()

    {

        if (this.img != null)

            GUI.DrawTexture(new Rect(0, 0, 200, 300), this.img);

        if (this.img2 != null)

            GUI.DrawTexture(new Rect(320, 0, 200, 300), this.img2);

        if (GUI.Button(new Rect(210, 0, 100, 20), "显示网络图片"))

        {

                StartCoroutine(this.DownLoadTexture(this.url, GetPicType.DownLoad));

        }

        if (GUI.Button(new Rect(210, 50, 100, 20), "显示本地图片"))

        {

            if (this.downloadOK)

            {

                StartCoroutine(DownLoadTexture("file://" + Application.streamingAssetsPath + "/1.png", GetPicType.LocalLoad));

            }

            else

            {

                Debug.LogError("没有下载完毕");

            }

        }

    }

    IEnumerator DownLoadTexture(string url, GetPicType getType)

    {

        WWW www = new WWW(url);

        Texture2D tempImage;

        yield return www;

        if (www.isDone && www.error == null)

        {

            switch (getType)

            {

                case GetPicType.DownLoad:

                    {

                        this.img = www.texture;

                        tempImage = this.img;

                        Debug.Log(tempImage.width + "  " + tempImage.height);

                        break;

                    }

                case GetPicType.LocalLoad:

                    this.img2 = www.texture;

                    tempImage = this.img;

                    Debug.Log(tempImage.width + "  " + tempImage.height);

                    break;

                default:

                    tempImage = null;

                    break;

            }

            if (tempImage != null)

            {

                byte[] data = tempImage.EncodeToPNG();

                File.WriteAllBytes(Application.streamingAssetsPath + "/1.png", data);

                this.downloadOK = true;

            }

        }

    }

}