Square Appears When Holding While Debugging Android App

Nathan Sokalski 4,121

While debugging my Xamarin Android app, if I hold my finger on an area for more than a few seconds, a semi-transparent square appears around that area, and then disappears once I remove my finger. This occurs only when holding with my finger (physically touching the emulator), not when holding using the cursor/touchpad. I have not tested my app on an actual device, and I have not noticed this happening in other people's apps that I have on my device. Is this supposed to be some kind of feature of the emulator to help you know that you actually touched the device? Will it happen when I make my release version? Would it happen on a physical device? Is there a way to enable/disable this feature (or what should I do if it is my code)? It may be a minor problem, but it is somewhat annoying.

Leon Lu (Shanghai Wicresoft Co,.Ltd.) 68,901 Reputation points Microsoft Vendor

2021-01-04T05:17:35.183+00:00

Could you share an picture about Square Appears When Holding While Debugging Android App? Based on your desciption, I cannot reproduce it. I test with Google Pixel when debugging, I cannot get this issue.
Nathan Sokalski 4,121 Reputation points

2021-01-04T16:53:04.46+00:00

Unfortunately, no I can't. When I do a screenshot using Windows 10's Snip & Sketch, the square disappears. Is there a better way for me to get a screenshot (or a video) of this? I think I'm managing to do the <Windows Key> + <Shift> + S before lifting my finger from the emulator, but like I said, the square disappears. Are you attempting to reproduce it using the emulator or an actual device (like I said, I don't know if it is an emulator related thing or not)? Are you using your finger or your machine's touchpad or mouse (like I said, it only happens with touching using my finger, but not the touchpad)? Is there any emulator setting that could be related (I don't know a lot about the emulator settings)? The base emulator settings I am using are Pixel 3 XL (although once again, I am not especially experienced with emulator customization).
Leon Lu (Shanghai Wicresoft Co,.Ltd.) 68,901 Reputation points Microsoft Vendor

2021-01-05T09:23:18.28+00:00

I tested with Google Pixel( physical device) and android emulator in above comment, please see it, but I cannot reproduce it, and please do not post comment to answer again(If your post is not a solution). You can try to use delay function in the snipping tool.
Nathan Sokalski 4,121 Reputation points

2021-01-05T22:38:44.59+00:00

The Snipping Tool Delay Function still stops me from getting a screenshot, because once I start using the cursor/touchpad (even if I have not lifted my finger), it causes the square to disappear.
Leon Lu (Shanghai Wicresoft Co,.Ltd.) 68,901 Reputation points Microsoft Vendor

2021-01-06T08:40:37.91+00:00

Take an video or Open support ticket(not free) about this issue. https://support.serviceshub.microsoft.com/supportforbusiness/onboarding?origin=%2Fsupportforbusiness%2Fcreate%3FsapId%3D211dd84f-3474-c3c5-79bf-66db630c92a6