FileWriteFinished is never being called

[Almis90]

The image url is http://media2.giphy.com/media/26BROh4qLWbwq7A1a/200w_d.gif

 var control = itemView.FindViewById<GifImageView>(Resource.Id.giphy_gif_image_view);
 var vm = DataContext as Giphy;

ImageService.Instance.LoadUrl(vm.Images.FixedWidthDownsampled.Url, TimeSpan.FromHours(1)).Success(async (arg1, arg2) =>
{
    await Task.Delay(2000);
    if (arg1.FilePath != null)
    {
        control.SetBytes(File.ReadAllBytes(arg1.FilePath));
        control.StartAnimation();
    }
}).FileWriteFinished((fwi) => {

}).DownloadOnly();

I put breakpoint but it not breaks there.

Edit: Missed the DownloadOnly() from code

[EmmanVazz]

You need put that image into a view. So you need a .Into(_imageView) at the end of the LoadUrl, like in the wiki.

[Almis90]

It may work but why it should fire only when you loading into a view? The method name suggests that it will fire whenever file finishes writing.

[daniel-luberda]

@Almis90 @EmmanVazz

Calling just ImageService.Instance.LoadUrl only creates image loading task, doesn't run it. To run task you have to call:

• DownloadOnly() methods
• Preload() methods
• Into() methods

Preload / DownloadOnly will allow you to load image without loading it into a view.

[Almis90]

Sorry I don't know how I missed it from my code but at the end I already have DownloadOnly(). It seems like it sometimes work and sometimes not (Most times not). I will make a repo and post it here.

[akshay2000]

I have a similar problem. I have the image already assigned to an ImageView but also want to download it. I see following behavior:

• If the image is fully displayed into a view and then I trigger the download using DownloadOnly the Success callback is called. Other callbacks like Progress and FileWriteFinished are not called.
• If the image is not yet displayed into a view but process has started using Into and then I trigger DownloadOnly for the same Url, none of the callbacks are called. However, if I do DownloadOnly on the same Url after the image is displayed, Success is called.

The behavior above is on Android.