NKFileDownloader question...

[paulsr]

Could someone kindly help me find the stupid mistake in the following piece of code...

Code: Select all

                var getlogo=new NKFileDownloader();
                getlogo.openURL("http://192.168.0.222/airnewspix/cx.png");
                getlogo.start("cx.png");
                setTimeout(getlogoProgress, 1000);

                function getlogoProgress()
                {
                    var progress = getlogo.getProgress();
                    if(progress == -1)
                    {
                        NKLog("failed");
                    }
                    else
                    {
                        NKLog("progress="+progress);
                        if(getlogo.getProgress() < 100)
                        {
                            setTimeout(getlogoProgress, 1000)
                        }
                    }
                }

                NKLog("downloaded");

It's almost identical to the example in the NK documentation. But...

What I see _first_ in the log is "downloaded" followed by an infinite stream of "progress=0" messages.

I also get a file in Documents called cx.png, sometimes empty, sometimes not, but never the complete file. The file on the server does exist. If I rename/remove it, I correctly see "failed" in the log.

Tkx in advance...

--paul

[francisco]

Hi paulsr,

If the size of file is very short, the timeout set to 1000 ms haven't time to update progress indicator.
Try with this:

Code: Select all

var getlogo=new NKFileDownloader();
getlogo.openURL("http://192.168.0.222/airnewspix/cx.png");
getlogo.start("cx.png");
getlogoProgress();
 
function getlogoProgress() {
  var progress = getlogo.getProgress();

  if (progress == -1) {
    NKLog("failed");
  } else {
    NKLog("progress=" + progress);

    if (getlogo.getProgress() < 100) {
      setTimeout(function() {getlogoProgress();}, 100);
    }
  }

  if (progress == 100) {
    NKLog("downloaded");
  }
}

Regards.
Francisco.

[paulsr]

Thanks Francisco ... I never thought of that! Yes, the file is only 7901 bytes.

Will try your solution now...

--paul

[paulsr]

Problem solved. Many thanks.

--paul

[francisco]

Hi paulsr,

I happy to hear.

Regards.
Francisco.