DisconnectHandler is never called

[pictos]

Description

I created a Custom Control that inherits from ElementHandler and at the moment that the control is closed the DisconnectHandler method isn't called, even if I set the VirtualView.Handler to null.

Steps to Reproduce

1. Add breakpoints here
2. Start the sample app
3. Scroll to the bottom and press the button
4. See the popup
5. Click outside the popup to close it
6. The DisconnectHandler isn't called

Version with bug

Preview 10 (current)

Last version that worked well

Unknown/Other

Affected platforms

Android

Affected platform versions

Android 11

Did you find any workaround?

No

Relevant log output

No response

[J-Swift]

Just ran into this when writing a custom handler that extends PageHandler on iOS. I assume I'm leaking event subscriptions because of it, but I haven't tested.

Hi @pictos. We have added the "s/needs-repro" label to this issue, which indicates that we require steps and sample code to reproduce the issue before we can take further action. Please try to create a minimal sample project/solution or code samples which reproduce the issue, ideally as a GitHub repo that we can clone. See more details about creating repros here: https://github.com/dotnet/maui/blob/main/.github/repro.md

This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

[pictos]

Hey @kristinx0211, here's the link for the light repro: https://github.com/pictos/MauiBugRepro/tree/DisconnectHandlerNotCalled

[VincentBu]

Hi @pictos , Could you give more details about repro steps for MauiBugRepro?

Hi @pictos. We have added the "s/needs-info" label to this issue, which indicates that we have an open question for you before we can take further action. This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

[pictos]

@VincentBu , sure.

1. Checkout this branch and run the sample app;
2. Add a breakpoint here to make sure that the sample is using the CustomEntryHandler
3. If you run on iOS add a breakpoint here if you're on Android add a breaking point here
4. Click on the Button with the Text Navigate to Next Page
5. The breakpoint on CustomEntryHandler ctor should be triggered, just press Continue
6. Navigate back to the previous page
7. The breakpoints on the DisconnectHandler will not be triggered. But they should, no?

[VincentBu]

@pictos you are right. DisconnectHandler isn't triggered on Android emulator. @kristinx0211 , Could you repro this on IOS emulator?