Glide: onResourceReady not called, issue with visibility

[fondesa]

I found a little problem using glide with .listener or a GlideDrawableImageViewTarget when my ImageView has visibility gone or invisible. The listener's callback methods are never called (only onLoadStarted):

Glide.with(mContext)
         .load(randomUrl)
         .diskCacheStrategy(DiskCacheStrategy.SOURCE)
         .placeholder(R.drawable.glide_placeholder)
         .dontAnimate()
         .into(new GlideDrawableImageViewTarget(mImageView) {
             @Override
             public void onResourceReady(GlideDrawable resource, GlideAnimation<? super GlideDrawable> animation) {
                  super.onResourceReady(resource, animation);
                    //never called
              }

               @Override
               public void onLoadFailed(Exception e, Drawable errorDrawable) {
                   super.onLoadFailed(e, errorDrawable);
                   //never called
               }
          });

[TWiStErRob]

What is the size of the ImageView declared in XML? Glide needs to know how big an image the target wants. And does so using a layout listener if the size is not ready yet. Having a hidden ImageView doesn't go through a layout to save processor cycles for obvious reasons, so it may not have a size yet.

You can try .override(w, h) to specify the size yourself or use explicit sizing (100dp).

[fondesa]

The image's size was match_parent for both width and height.
Thanks for your response.

[TWiStErRob]

Backlink: http://stackoverflow.com/questions/32503327/glide-listener-doesnt-work

[wangyeming]

Thanks for your question and answer~ It's solve my problem which I want to save a ViewGroup to a Bitmap with ImageView loading by Glide on background task. When I fix the width and height for this ImageView, I can get the listener callback!

[svenjacobs]

We encountered this issue now multiple times.
Shouldn't Glide always call the callback when it has loaded the image whether or not the image view is visible?

[TWiStErRob]

@svenjacobs when the view is not visible, the load can't even start, so a completion-callback can never be reached. Glide needs a size before it can progress to loading an image, non-visible views don't have valid sizes.

[komqkqh]

good!!
Thanks for your response.

[ahuang13]

Just to clarify, this should only apply to Views set to GONE. Views set to INVISIBLE should still have a valid size, and Glide should be able to properly load images for them. @TWiStErRob, can you confirm this?

[TWiStErRob]

@ahuang13 invisible won't work either: https://github.com/bumptech/glide/blob/v4.7.1/library/src/main/java/com/bumptech/glide/request/target/ViewTarget.java#L512

[khcpietro]

Changing alpha from 0 to 1 is workaround. This works fine.

[SaeedRe]

I've encountered the same issue where I wanted to implement this:
ImageView Gone -> Call glide to load the image -> If image Loaded then show the ImageView, if failed stay hidden
The workaround that worked for me was :

imageView.show()
Glide.with(imageView)
           .load(url)
           .dontAnimate()
           .into(object : DrawableImageViewTarget(this) {
              override fun onLoadStarted(placeholder: Drawable?) {
                 super.onLoadStarted(placeholder)
                 imageView.gone()
              }

              override fun setResource(resource: Drawable?) {
                 super.setResource(resource)
                 resource?.let {
                    imageView.show()
                 }
              }
           })