Reuse old image for Place Holder

[thizisarun]

I want to reuse the previous version image for place holder how can i achieve this?

[TWiStErRob]

This is a duplicate of #527 please pick a solution from there.

[thizisarun]

Hi, It's won't work my scenario . I will explain my scenario , i will add image one by one manually to my gridview in 0'th position. If i am adding a new image at that time it showing previous image only. How can i resolve this here i am enclosed my code

 Glide.with(mImageView.getContext())
    .load(path)
    .listener(new RequestListener<String, GlideDrawable>() {
        @Override public boolean onException(
                Exception e, String model, Target<GlideDrawable> target, boolean isFirstResource) {
            return false;
        }
        @Override public boolean onResourceReady(
                GlideDrawable resource, String model, Target<GlideDrawable> target,
                boolean isFromMemoryCache, boolean isFirstResource) {  // execution order: 2
            target.getSize(new SizeReadyCallback() {
                @Override public void onSizeReady(int width, int height) {  // execution order: 3
                    Glide.with(mImageView.getContext()).load(path).preload(width, height);
                }
            });
            return false;
        }
    })
    .error(R.drawable.broken_img)
    .signature(new StringSignature(mLastModified))
    .dontAnimate()
    .into(mImageView);

[TWiStErRob]

Adding an item at the beginning of a list shouldn't rebind the rest of the items. It sounds like your getItemId() is not playing nice. Can you please describe in more detail (for example actual behavior and expected behavior) what it is you're trying to achieve?

Is it possible that you're not preloading the correct image? Inside onSizeReady you have path and outside you also have path, in my original code it was pathToLoad2 and pathToLoad. The solution you picked pre-loads the next image causing the next load to hit the memory cache. You can also try the thumbnail solution where the previous(current) image is re-used as a placeholder and the next on is loaded normally.

[thizisarun]

Ya your are correct at the time i dont have "pathToLoad2 " because i am loading at first time that's why i am giving same path. If i am using above code then i am getting repeated image. Some time it may work correctly

[thizisarun]

I think glide reuse the particular imageview instance.

[TWiStErRob]

How about the .signature() there? You need to pass that for every load otherwise you may hit the cache.

[thizisarun]

i will pause every time based on my object

[TWiStErRob]

You said you wanted to reuse the old image for placeholder, but now you say that you only have one path?

[thizisarun]

ya correct path is same but signature is different

[TWiStErRob]

Then you don't have the future update time, that is the "next path", you'll have to try the thumbnail version from #527. Something like the below should hit the memory/disk cache:

....load(path)
   .signature(currentLastModified)
   .fitCenter()
   .thumbnail(....load(path).signature(previousLastModified).fitCenter())
   .into(mimageView)