Popup allows background interactions in .NET MAUI but not in Xamarin

[KR-Tech-Cell]

Description

When using a ContentView as a popup in .NET 8 MAUI , background elements (such as textboxes or buttons) still receive touch events. This issue did not occur in Xamarin, where popups automatically blocked interactions with background elements.

.NET MAUI Version: 8.0.3
Visual Studio Version: 2022
Platform: Android

Expected Behavior:
When the popup is open, all background elements should be disabled, preventing unintended interactions.
This behavior worked automatically in Xamarin but does not in MAUI.
Actual Behavior:
Background elements (like textboxes) receive touch events even when the popup is open.

Steps to Reproduce

• Create a ContentView as a popup inside a page.
• Add a ListView or a Button inside the popup.
• Place a Entry field in the background (behind the popup).
• Open the popup and tap inside it (e.g., on the title).
• Notice that the background Entry receives focus, and the keyboard opens.

Link to public reproduction project repository

No response

Version with bug

Unknown/Other

Is this a regression from previous behavior?

Yes, this used to work in Xamarin.Forms

Last version that worked well

No response

Affected platforms

Android

Affected platform versions

Android

Did you find any workaround?

Manually setting layout.IsEnabled = false; when the popup opens, and enabling it again when the popup closes.
popup.Opened += (s, e) => { layout.IsEnabled = false; };
popup.Closed += (s, e) => { layout.IsEnabled = true; };

And also tried setting InputTransparent="False" on parent element of popup.

However, this was not required in Xamarin.

Relevant log output

[nk-alex]

#22442 #10252 #12014

[jfversluis]

What is "a popup"? Is this a third-party control? If yes, which one?

Also, can you confirm this is still an issue when using .NET 9? Please note that unlike .NET, .NET MAUI does not have LTS. See: https://dotnet.microsoft.com/platform/support/policy/maui, so there should be no reason for you to not update to .NET 9 for your .NET MAUI apps.

[LeeWhite187]

@jfversluis His bug report describes the popup as a "ContentView as a popup".
I've hit a similar click passthrough problem, when testing app functions in MAUI.

[jfversluis]

That still leaves the question; how does the navigation work? How do you open the popup? A popup is not a concept named as such in .NET MAUI itself. I can interpret this multiple ways. Thats why a reproduction is always super helpful :)

@LeeWhite187 in what version are you seeing this? Did you test .NET 9?

[dotnet-policy-service]

Hi @KR-Tech-Cell. 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.

[jfversluis]

Is this a duplicate here? #26026