perf(file-list): avatar loading

[alperozturk96]

Issue

Scrolling up and down causing to re-generate avatars

Changes

• Doing all job in background thread and render only in main thread
• Adds unified share calls to the missing places

[alperozturk96]

/backport to stable-35.0.x

[github-actions]

stable35-IT test failed: https://www.kaminsky.me/nc-dev/android-integrationTests/17667-IT-stable35-10-36

[github-actions]

master-IT test failed: https://www.kaminsky.me/nc-dev/android-integrationTests/17667-IT-master-10-41

[github-actions]

Codacy

SpotBugs

Category	Base	New
Bad practice	32	32
Correctness	58	58
Dodgy code	186	186
Experimental	1	1
Malicious code vulnerability	2	2
Multithreaded correctness	26	26
Performance	37	37
Security	18	18
Total	360	360

[github-actions]

📱 QA build

Download	app-qa-debug.apk
QR code	Open the QR code for this download
Commit	05afc6c
Version	17667
Available until	7 days after this build

The QA build installs alongside a released Nextcloud app, so you can keep
using your existing install while testing.

Downloading the file requires a GitHub account, so open this link on the
device you want to test on, or transfer the APK to it.

[codecov]

Codecov Report

❌ Patch coverage is 37.20930% with 54 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...a/com/nextcloud/utils/share/UnifiedShareSharees.kt	29.41%	18 Missing and 6 partials ⚠️
.../java/com/owncloud/android/ui/AvatarGroupLayout.kt	14.28%	11 Missing and 1 partial ⚠️
...android/ui/adapter/helper/AvatarShareesProvider.kt	66.66%	6 Missing and 1 partial ⚠️
...owncloud/android/ui/adapter/OCFileListAdapter.java	33.33%	4 Missing ⚠️
.../java/com/owncloud/android/utils/DisplayUtils.java	33.33%	3 Missing and 1 partial ⚠️
...ncloud/android/ui/fragment/OCFileListSearchTask.kt	0.00%	2 Missing ⚠️
...owncloud/android/ui/fragment/SharedListFragment.kt	0.00%	1 Missing ⚠️

📢 Thoughts on this report? Let us know!

[daniele-verducci]

Hey Alper, this seems good to me, so I approved.
Anyway, I found a bug that has NOT been introduced in this one (already present on master) that may be related, see video:

Screen_recording_20260922_113235.webm

Basically, at start the sharee icons are flickering and then only the first sharee is shown. When I move to Recent or Shared, then all the sharees are shown in the icon, and if I go back to files view, it remains like that until I reload the list.