progress bar for downloading a file webclient .downloadfile

so i have a piece of my script that is set to download a file from a url and then save it to the asset folder and it works great but i want to show the progress of its download as a variable so that i can then display the progress so that you have an idea on how its going, i can not find a way to get this to work/

this is my working code

Code (CSharp):

1.     private static void download()
2.     {
3.         WebClient client = new WebClient();
4.         client.DownloadFile("http://download.net/1.jpg",Application.dataPath + "/Download/image.jpg");
5.     }

an help would be greatly appreciated.

 

I've never used WebClient but if you use WWW then you can poll the progress (0..1) and use this value for a progress bar.

 

hmmmm interesting could you show me an example how this could be done with WWW with a progress bar?

 

Have you used WWW before? Do you know what a Coroutine is?

 

yes i have used it before but i am still new to c# scripting with unity, i do have a www above this that is checking a txt file on a web server for a version checking.

 

Code (CSharp):

1. var www = new WWW(url);
2. while(!www.isDone)
3. {
4.     // todo: query www.progress which will be 0..1 and use the value
5.     yield return null;
6. }

 

@andymads except this doesn't work. Even if you run it in a Coroutine it locks the main thread and you can't access the progress property.

 

It works fine in a coroutine.

 

I ended up using another way using WWW and IEnumerator here is my working code also for the web location of the files you need to have the setup.exe and a txt file with the version all located in the same folder.

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using UnityEngine.UI;
4. using System.Net;
5. using System.IO;
6.  
7. public class VCheck : MonoBehaviour {
8.  
9.     public int m_GameV;
10.     public Text m_downloadProgress;
11.     public int m_CheckV;
12.     private string m_ServerV;
13.     private bool m_downloadFinished = false;
14.  
15.     // Use this for initialization
16.     void Start ()
17.     {
18.         //runs check V on game start
19.         StartCoroutine(CheckV());
20.         m_downloadProgress.enabled = false;
21.     }
22.  
23.     // Update is called once per frame
24.     void Update ()
25.     {
26.         //starts setup.exe when download is finished
27.         if (m_downloadFinished == true)
28.         {
29.             //start update
30.             System.Diagnostics.Process.Start(System.Environment.ExpandEnvironmentVariables("%USERPROFILE%") + "/setup.exe");
31.             m_downloadFinished = false;
32.  
33.             Application.Quit();
34.  
35.             // quit in editor only used in unity editor
36.             #if UNITY_EDITOR
37.             UnityEditor.EditorApplication.isPlaying = false;
38.             #endif
39.         }
40.     }
41.     //start download update file
42.     private IEnumerator urlDownload ()
43.     {
44.         //creats connection to server
45.         WWW downloadFile = new WWW("http://DownLoadLocationOfSeup.exe.com");
46.  
47.         //shows download progress
48.         while (!downloadFile.isDone)
49.         {
50.             m_downloadProgress.enabled = true;
51.             m_downloadProgress.text = (string.Format("New Version Available Downloading {0:P1}", downloadFile.progress));
52.             yield return null;
53.             if (downloadFile.isDone)
54.             {
55.                 m_downloadFinished = true;
56.                 m_downloadProgress.text = ("New Version Available Downloading 100 %");
57.             }
58.         }
59.         //save location
60.         string savePath = System.Environment.ExpandEnvironmentVariables("%USERPROFILE%") + "/setup.exe";
61.         //write file to local disk
62.         byte[] bytes = downloadFile.bytes;
63.         File.WriteAllBytes(savePath, bytes);
64.     }
65.  
66.     //check V with server
67.     private IEnumerator CheckV()
68.     {
69.         WWW hs_get = new WWW("http://VersionCheck.txt");
70.         yield return hs_get;
71.         if (hs_get.error != null)
72.         {
73.             print("no internet connection" + hs_get.error);
74.             m_CheckV = m_GameV;
75.         }
76.         else
77.         {
78.             //if game V is less then CHeck download new v
79.             m_ServerV = hs_get.text;
80.             m_CheckV = int.Parse(m_ServerV);
81.             if (m_CheckV > m_GameV)
82.             {
83.                 StartCoroutine(urlDownload());
84.             }
85.         }
86.  
87.     }
88. }
89.  

 

Code (CSharp):

1.  
2.                 WebClient www = new WebClient ();
3.                 Uri uri = new Uri (you_url);
4.                 www.Encoding = Encoding.UTF8;
5.                 www.DownloadProgressChanged += new DownloadProgressChangedEventHandler ((sender, data) => {
6.                     Debug.Log("here you can check progress");
7.                 });
8.                 www.DownloadDataCompleted += new DownloadDataCompletedEventHandler ((sender, data) => {
9.                     Debug.Log("here you can check complete");
10.                     www.Dispose ();
11.                 });
12.                 www.DownloadDataAsync (uri);
13.             }

 

@igor_rst How you are doing it in other thread in Unity?

 

simple bro use client.DownloadFileAsycn function