OutOfMemoryError on Low-Memory Devices (Android 16, SDK 36)

[ianrcVLC]

⚠️ Before posting ⚠️

• This is a bug, not a question or an enhancement.
• I've searched for similar issues and didn't find a duplicate.
• I've written a clear and descriptive title for this issue, not just "Bug" or "Crash".
• I agree to follow Nextcloud's Code of Conduct.

Steps to reproduce

1. Install Nextcloud client from F-Droid on a low-memory Android 16 device.
2. Connect to Nextcloud server instance.
3. Navigate the app—open files, browse folders, interact via touch.
4. After sustained interaction (variable duration), the app crashes with OutOfMemoryError.

Expected behaviour

App handles touch input events without unbounded memory growth.

Actual behaviour

App crashes. Heap reaches 256MB limit with <1% free after garbage collection. Even a 24-byte allocation fails.

Android version

16 (SDK 36)

Device brand and model

Ulefone Armor X32 Pro (GQ5021AH1)

Stock or custom OS?

Stock

Nextcloud android app version

340010090

Nextcloud server version

Nextcloud hosted on Pikapod.net 34.0.2-apache

Using a reverse proxy?

No

Android logs

Exception in thread "main" java.lang.OutOfMemoryError: Failed to allocate a 24 byte allocation with 2052080 free bytes and 2003KB until OOM, target footprint 268435454, growth limit 268435456; giving up on allocation because <1% of heap free after GC.
at com.pri.ai.PriInputMonitorPolicy.onDownEvent(PriInputMonitorPolicy.java:180)
at com.pri.ai.PriInputMonitorPolicy.onInterceptTouchEvent(PriInputMonitorPolicy.java:146)
at com.pri.ai.PriInputMonitorPolicy.onInputEvent(PriInputMonitorPolicy.java:126)
at android.view.ViewRootImpl.processRawInputEvent(ViewRootImpl.java:11283)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:11048)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:300)
at android.os.MessageQueue.nativePollOnce(Native Method)
at android.os.MessageQueue.nextLegacy(MessageQueue.java:904)
at android.os.MessageQueue.next(MessageQueue.java:1016)
at android.os.Looper.loopOnce(Looper.java:196)
at android.os.Looper.loop(Looper.java:338)
at android.app.ActivityThread.main(ActivityThread.java:9122)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:614)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1022)

Server error logs

Additional information

No response

[ianrcVLC]

Issue Update: Investigation and Removal of com.pri.* System Packages

Summary of Findings

During investigation into Nextcloud crashes on Ulefone Armor devices running Android 16, a family of pre-installed system packages under the com.pri. namespace was identified as the root cause. These packages are not related to Nextcloud but represent Ulefone's proprietary overlay services that interfere with third-party applications.

com.pri.monitor Created dated folders with 0-byte video files (surveillance-like activity)

com.pri.aimemory.overlay AI memory hooks injected into application processes

com.pri.aitext.overlay On-screen AI text overlay interfering with app UI rendering

Actions Taken

All packages from the critical security risk list were removed using Canta debloater via Shizuku (no root required):

com.pri.monitor
com.pri.aimemory.overlay
com.pri.aitext.overlay
com.pri.applock
com.pri.factorytest
com.pri.soundrecorder

Results Observed

Nextcloud stability - Now stable