Perpetual thumbnail loading on scroll

[Kilian-Perisset]

Hi,

Due to : #5207

When you load a folder full of pictures, the thumbnail is no longer cached

So,

1. Go in a large folder of pictures (> 300MB, 20+ pictures)
2. The top is being loaded (you may see the "shimmer" effect)
3. Once the top loaded, if you go down, the "bottom pictures" will be loading, but if you go back to the top, the top pictures will be loading on more time (when they've already been loaded)

Maybe a cache-issue or an UI invalidate issue ?

Based on master.

[tobiasKaminsky]

Are the thumbnails really fetched again from server?
Or is it only a UI problem?

[tobiasKaminsky]

I cannot reproduce this.
For me the images on "top" are shown directly, without any shimmer nor delay…

[Kilian-Perisset]

@tobiasKaminsky

It's only on the first load.
You need to clear cache/restart the app and consult a "big folder" with many pictures in it.

If you scroll down, then scroll up, the pictures will be loaded one more time.

According to @sirambd , the problem is that when you scroll (bind the views), you create jobs (async tasks) to get the thumbnail, and if you don't stop to scroll, you'll always create new jobs.

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[tobiasKaminsky]

According to @sirambd , the problem is that when you scroll (bind the views), you create jobs (async tasks) to get the thumbnail, and if you don't stop to scroll, you'll always create new jobs

Hm. I guess this is true.
But when we would kill all the task once the view is out of screen scope, then we might never finish any task…
Do you have an idea?

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[szaimen]

Ping

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This bug report did not receive an update in the last 4 weeks. Please take a look again and update the issue with new details, otherwise the issue will be automatically closed in 2 weeks. Thank you!