//開始分散式下載
	public void StartOrAbortFileDownloading () {
		isDownloadingAbort = !isDownloadingAbort;
		//中止下載
		if (isDownloadingAbort) {
			String ButtonName = "Resume Downloading";
			share_point_downloadButton_text.text = ButtonName;

			//set reference
			fileDownloading = gameObject.GetComponent<FileDownloading>();
			fileDownloading.SetIsDownloadingAbortReverse();
			
			print ("isDownloadingAbort = "+isDownloadingAbort);
			print ("檔案下載中斷");
		}
		else {
			//set reference
			fileDownloading = gameObject.GetComponent<FileDownloading>();

			String ButtonName = "Abort";
			share_point_downloadButton_text.text = ButtonName;

			//設定下載路徑
			String DownLoadURL = SetDownLoadURL (textField_url.text);
			if (DownLoadURL.Length <= 0) {
#if MYTEST
				//預設網址
				url="http://www.jap-idols.com/wp-content/uploads/2012/07/nozomi_sasaki_new_bikini_gi_11.jpg";
				DownLoadURL = SetDownLoadURL (url);
#else 
				//空白
				print("請輸入url ");
				return;
#endif
			}
			url = DownLoadURL;

			//開始分散下載
			StartCoroutine(startShareDownloading());

			
		}


	}
 private void OnFileDownloading(object sender, FileDownloadingArgs e)
 {
     FileDownloading?.Invoke(this, e);
 }