I am unable to utilise split screen mode with 3rd-party launchers

Help Fairphone 5
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1

When I attempt to utilise split screen mode with LogFox 2.0.6 and Droid-ify 0.6.5, it fails, spectacularly. This appears to apply to any combination of applications, though, since I’ve tried Fenix Nightly and WhatsApp Business, too.

Summarily, QuickStep (V14) crashes!

FATAL EXCEPTION: main
Process: com.android.launcher3, PID: 5246
java.lang.NullPointerException: Attempt to invoke virtual method 'void com.android.quickstep.views.FloatingTaskView.getBoundsOnScreen(android.graphics.Rect)' on a null object reference
	at com.android.quickstep.views.RecentsView.confirmSplitSelect(RecentsView.java:4700)
	at com.android.quickstep.views.TaskView.confirmSecondSplitSelectApp(TaskView.java:763)
	at com.android.quickstep.views.TaskView.onClick(TaskView.java:747)
	at com.android.quickstep.views.TaskView.$r8$lambda$2dErZAYzRAWboZR0vn31kIz_HGY(Unknown Source:0)
	at com.android.quickstep.views.TaskView$$ExternalSyntheticLambda2.onClick(Unknown Source:2)
	at android.view.View.performClick(View.java:7660)
	at android.view.View.performClickInternal(View.java:7637)
	at android.view.View.-$$Nest$mperformClickInternal(Unknown Source:0)
	at android.view.View$PerformClick.run(View.java:30165)
	at android.os.Handler.handleCallback(Handler.java:958)
	at android.os.Handler.dispatchMessage(Handler.java:99)
	at android.os.Looper.loopOnce(Looper.java:205)
	at android.os.Looper.loop(Looper.java:294)
	at android.app.ActivityThread.main(ActivityThread.java:8223)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:552)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:977)

Can anyone reproduce this? It’ll assist me when I attempt to report this to FP’s ZenDesk. I’m using FP5.UT2M.B.113.20250319.

2

I can use split screen without issues when testing (dont use it normally) with various apps incl WA B, however I dont use Logfox or Droidify.

1 Like
3

I seem to have no trouble splitting them.
But I did just download them for the purpose of this test. Maybe something breaks if you use them harder?

Screenshot_20250425-164835
Screenshot_20250425-1648351224×2700 154 KB

Screenshot_20250425-164941
Screenshot_20250425-1649411224×2700 210 KB

4

@Nabalazs, it applies to all applications. I’ve now tested it with pretty much every one on my phone, and they all crash QuickStep. Thanks for being so dilligent, though.

1 Like
5

I’m gonna get to the bottom of this:

  1. xdaforums.com/t/how-do-i-debug-a-debuggable-app-on-a-physical-phone-over-usb-with-windows-developer-options-debugging-is-turned-on-but-what-do-i-do-next.4674852/#post-90067516

  2. android.stackexchange.com/q/260306 [1]

  1. android.stackexchange.com/revisions/260306/1 ↩︎

6

If this topic was a steam game, I’d suggest verifying the integrity of files. Does Android have some sort of self repair diagnose feature that checks core system files?

1 Like
7

@Nabalazs, OEM unlocking being disabled enables Verified Boot, which helps. I did some rudimentary searching, and there weren’t any satisfying answers:

  1. reddit.com/r/AndroidQuestions/comments/pvtqeu

  2. xdaforums.com/t/how-to-verify-integrity-of-installed-android-image.3073949

  3. forums.tomsguide.com/threads/is-there-a-way-to-check-the-integrity-of-my-android-os-files.542894/

I’ve located information about verifying the filesystem’s integrity (just treat it like any ext4 one), but that’s improbably the cause:

I’m gonna have to ask this too. Poor Android SE are gonna get sick of me.

9

i have exact (ofcourse not PID :slight_smile: same crash as you if using NovaLauncher,
when i switch to stock launcher, then split work without problem…

EDIT: now also i try some of other 3rd launcher, and same crash as with NovaLauncher

1 Like
10

@k3dAR, ya clever bloke! That fixes it for me, too:

image
image568×1253 111 KB

Reported at support.fairphone.com/hc/en-us/requests/1268276. If anyone else files a request, cite “Request #1268276” (for assistance in triage).

12

On that note, I’d like to provide a more useful stack trace, but it’s difficult:

Consequently, if anyone primarily uses Windows and has Android Studio installed, would you tell me whether developer.android.com/studio/debug/index#startdebug [1] is of use in this situation? I don’t have time to switch OSes…

  1. xdaforums.com/t/how-do-i-debug-a-debuggable-app-on-a-physical-phone-over-usb-with-windows-developer-options-debugging-is-turned-on-but-what-do-i-do-next.4674852/#post-90070374 ↩︎