学步园

下一篇文章试试用线程下载

代码如下

using System.IO;
using UnityEngine;
using System.Net;
using System.Collections;

public class Test : MonoBehaviour {

    private string[] _urls=new string[10];
    private string [] _localPath = new string[10];

	// Use this for initialization
	void Start () 
    {
        for (int i = 0; i < _urls.Length; i++)
        {
            //所有图片的下载地址
            _urls[i] = "http://192.168.1.41:8080/Test/picture/" + (i + 1).ToString() + ".jpg";
            //所有图片的保存路径
            _localPath[i] = Application.dataPath + "/Resources/" + (i + 1).ToString() + ".jpg";
            
        }
	}

    // Update is called once per frame
    void Update() 
    {
	
	}

    void OnGUI()
    {
        if (GUI.Button(new Rect(0, 0, 100, 30), "下载所有图片"))
        {
            DownLoad();
        }
        //判断文件是否已下载
        for (int i = 0; i < _urls.Length; i++)
        {
            if (File.Exists(_localPath[i]))
            {
                GUI.Button(new Rect(0, 30 * i+30, 50, 30), (i + 1).ToString());
            }
        }

        
    }

    //下载所有图片
    private void DownLoad()
    {
        for (int i = 0; i < _urls.Length; i++)
        {
            DownLoadAllImages(_urls[i], _localPath[i]);
        }
    }


    void DownLoadAllImages(string url, string localPath)
    {
        WebClient web = new WebClient();
        web.DownloadFile(url, localPath);
        //以下代码下载完成后执行
    }
}