[regression/7.0.0] [Android] ScrollView accessibility is broken

[rachelkang]

GitHubTags:
#.NET MAUI; #A11ySev1;

Description

There's currently an accessibility bug where a ScrollView is in the accessibility tree and receives screen reader focus, and the non-interactive elements within a ScrollView are not individually accessible.

This is a regression - it's broken with .NET 7 and works fine with .NET 6.
It affects our File > New .NET MAUI app template experience.

Current behavior	Expected behavior

This issue is very similar but different from #8524
This is an issue with .NET MAUI and note the Android platform

Current workaround is to remove the ScrollView or set AutomationProperties.IsInAccessibleTree="False" on the ScrollView

Steps to Reproduce

1. Create a File > New .NET MAUI app with .NET 7
2. Run on Android
3. Turn Talkback on

Link to public reproduction project repository

file new maui

Version with bug

6.0.486 (current)

Last version that worked well

Unknown/Other

Affected platforms

Android

Affected platform versions

Android 12

Did you find any workaround?

Current workaround is to remove the ScrollView or set AutomationProperties.IsInAccessibleTree="False" on the ScrollView

Relevant log output

No response

[rachelkang]

#8021 is NOT responsible for this regression

[rachelkang]

also not the frame/bounds change in #8451

[PureWeen]

Looking at the source code for View.Java it looks like Android will consider anything with a hoverlistener as being importantForAccessibility

https://cs.android.com/android/platform/superproject/+/master:frameworks/base/core/java/android/view/View.java;l=14227?q=hasListenersForAccessibility

I'm not sure off hand the best way for us to enable the VSM PointerOver features and make it work with accessibility. My current thought is to use the OnHoverEvent override instead of a listener. So, on views like MauiScrollView/LayoutViewGroup/ContentViewGroup/etc... we can override OnHoverEvent opposed to using a listener.

We could try to be smarter about adding a HoverListener to everything, but if someone adds a PointerOver VSM to a StackLayout we'll just hit this again.

And