Page.OnAppearing and OnDisappearing event on Windows is raised too often

[rogerbriggen]

Description

OnAppearing and OnDisappearig are called as soon as there is another Application hiden some part of the MAUI application.

In the Xamarin documentation (i did not find the events in the maui documentation) https://docs.microsoft.com/en-us/dotnet/api/xamarin.forms.page.ondisappearing?view=xamarin-forms#remarks it says, the events are not triggered by external application but just by navigation.

Steps to Reproduce

• Get demo app from https://github.com/rogerbriggen/mauiAppearEventProblem
• Run it on windows
• check the counters or set a breakpoint in MainPage.xaml.cs OnAppearing
• Move some other application over the app or minimize the maui app -> see the counters for event raising

Link to public reproduction project repository

https://github.com/rogerbriggen/mauiAppearEventProblem

Version with bug

6.0.486 (current)

Last version that worked well

Unknown/Other

Affected platforms

Windows

Affected platform versions

Windows 10

Did you find any workaround?

No

Relevant log output

No response

[ghost]

We've moved this issue to the Backlog milestone. This means that it is not going to be worked on for the coming release. We will reassess the backlog following the current release and consider this item at that time. To learn more about our issue management process and to have better expectation regarding different types of issues you can read our Triage Process.

[holecekp]

I have the same problem. I have two tabs and when I switch between them a few times OnAppearing starts to be very unreliable and it is executed many times (more than 50 times for each tab!!!). This causes performance problems.

On the other hand, I have an opposite problem on Android - OnAppearing is not executed at all when tabs are switched (probably related to #9531)

[Zhanglirong-Winnie]

Verified this issue with Visual Studio 17.7.0 Preview 1.0. Can repro on windows platform with sample project.
mauiAppearEventProblem-main.zip

[pboisso]

Being bothered by this bug also. Any news on fix?