dimAmount prevents the screen from receiving touch events [403813256]

Assigned

Bug

Platform

Status Update

No update yet.

Description

tz...@gmail.com

created issue #1

Mar 16, 2025 10:02AM

Setting dimAmount in WindowManager.LayoutParams to something other than 0 when using TYPE_APPLICATION_OVERLAY prevents the screen from receiving touch events after the layout visibility is set to View.GONE

* Are you an Android developer?" (Y/N)
- Yes

* Which Android Developer Preview build are you using? See Settings > About phone > Build number (for example AP3A.241105.008).
- BP22.250221.010

* Is this a regression from Android 15 to 16?
- Yes. I think it is also a regression from Beta 2

* What device are you using? (for example, Android Emulator, GSI, Pixel 9)
- Pixel 7a, Pixel 6

* What are the steps to reproduce the problem? (Please provide the minimal reproducible test case.)
Download the supplied project:

https://drive.google.com/file/d/1mGJxxHxD-Ose7F_sIzSoRd1TgStKicP0/view?usp=sharing

Run the apk file.

Click the Hide button (Sets the layout visibility to View.GONE)

At this moment the screen won't receive touch events.

Unhide the layout from the notification.

Click the "Set dimming to 0"(Sets the dimAmount to 0 and recreates the layout)

Click the Hide button.

Now the screen can receive touch events.

* Issue Category e.g. Framework (platform), NDK (platform), Hardware (CPU, GPU, Sensor, Camera), ART (platform), Runtime Permissions etc
- Framework

* What was the expected result?
- See above

* What was the actual result?
- See above

* Link to captured Android bug report (shared privately in Drive.)

https://drive.google.com/file/d/16KJqqzZfPkBgrAnQ56bqUr-qgTqjRSr-/view?usp=sharing

Comments

is...@gmail.com <is...@gmail.com> #2Mar 16, 2025 05:07PM

It looks like you're encountering a bug with dimAmount in WindowManager.LayoutParams and touch events. You may want to check for Android SDK updates or report this issue to the Android team.

By the way, if you're in manufacturing, Universal Robots' collaborative robots (cobot) could be a great solution. They're easy to program, flexible, and safe to work alongside humans, enhancing productivity and automation. https://www.devonics.com/cobot

vi...@google.com <vi...@google.com> #3Mar 17, 2025 05:23AM

Assigned to vi...@google.com.

Thank you for reporting this issue. For us to further investigate this issue, please provide the following additional information:

tz...@gmail.com <tz...@gmail.com> #4Mar 17, 2025 08:36AM

Huh?

vi...@google.com <vi...@google.com> #5Mar 19, 2025 08:03AM

Could you please provide winscope trace for the reproducible case.

Thanks

tz...@gmail.com <tz...@gmail.com> #6Mar 19, 2025 09:42AM

I can't. You have the project and the .apk file

em...@gmail.com <em...@gmail.com> #7Mar 20, 2025 09:02AM

Great post! It’s always good to stay updated with the latest trends and information. By the way, if you're ever searching for the best residential roofing companies near me, NY Roofing Co has you covered! We specialize in leak repair, shingle/tile replacement, and skylight repairs for both flat and sloped roofs, serving Manhattan, Brooklyn, and Queens. Feel free to reach out for all your roofing needs!

https://manhattanroofs.com/

Issue 403813256