Thumbnail in chat not showing image or document preview. On android mobile app TALK (F-Droid)

[KapriQ]

Steps to reproduce

Sending an image or document to any of my contacts
Receiving an image or document from any of my contacts

Expected behaviour

The user expects to see a preview of the image or document whilst in chat without fully opening it. Instead of seeind a dummy thumbnail preview but a thumbnail preview of the actual image.

Actual behaviour

When an image is sent or received the user cannot see the preview of it in the thumbnail, however they see the default thumbnail icon instead. As well as documents which also adopt the same be haviour.

Even after downloading the image and viewing it, a thumbnail preview of the image in chat remains the same dummy icon as shown in the images attached from both mobile and browser.

My config.php file:

............. 'enable_previews' => true, 'instanceid' => ' ![photo_2024-03-07_18-04-43](https://github.com/nextcloud/talk-android/assets/31235411/77c8b57c-1d04-497e-9a97-d9c2edc83c35) ', 'default_language' => 'sk', 'maintenance' => false, 'preview_max_x' => 1200, 'preview_max_y' => 1200, 'enabledPreviewProviders' => array ( 0 => 'OC\\Preview\\Movie', 1 => 'OC\\Preview\\PNG', 2 => 'OC\\Preview\\JPEG', 3 => 'OC\\Preview\\GIF', 4 => 'OC\\Preview\\BMP', 5 => 'OC\\Preview\\XBitmap', 6 => 'OC\\Preview\\MP3', 7 => 'OC\\Preview\\MP4', 8 => 'OC\\Preview\\TXT', 9 => 'OC\\Preview\\MarkDown', 10 => 'OC\\Preview\\PDF', 11 => 'OC\\Preview\\JPG', 12 => 'OC\\Preview\\Image', ), .................

Device brand and model

Poco F5

Android version

13

Nextcloud Talk app version

18.0.1 (Fdroid)

Nextcloud server version

26.0.0

Talk version

16.0.11

Custom Signaling server configured

None

Custom TURN server configured

None

Custom STUN server configured

None

Android logs

No response

Server log

No response

Additional information

Thumbnails in Nextcloud app are working fine, also under TALK in web interface i can see thumbnails.

But TALK apk (F-DROID) is not generating any of the thumbnails.

[Dtrieb]

Additional information

If I send a PDF file, I see the file preview in dark mode. But without contrast, so that you can hardly see it.

[mahibi]

Do you see the previews in webUI ?

Default icons will be replaced with v19.0.0 which should also resolve the contrast issue.

[Dtrieb]

Do you see the previews in webUI ?

Default icons will be replaced with v19.0.0 which should also resolve the contrast issue.

On my mobile in dark mode I didn't see it , too. Look the screenshot.

If I tap one time on the file I get this square around it.

[mahibi]

@Dtrieb Ah seems i misunderstood your comment. For dark preview images, please open an issue at https://github.com/nextcloud/spreed/issues

The current issue should just be about the missing previews as shown in the screenshot from @KapriQ

[mahibi]

Is this still an issue with talk app 19.0.0?

[github-actions[bot]]

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!