[Android] MissingMethodException: AccessibilityNodeInfoCompat.set_Checked(bool) binary breaking change in Xamarin.AndroidX.Core 1.17.0.2 (10.0.70 regression)

[edgiardina]

Description

Microsoft.Maui.Controls 10.0.70 crashes on Android when an accessibility service (Voice Access, TalkBack, etc.) is active and a CollectionView with SelectionMode != None is visible. The crash is:

System.MissingMethodException: Method not found: void AndroidX.Core.View.Accessibility.AccessibilityNodeInfoCompat.set_Checked(bool)
  at Microsoft.Maui.Platform.MauiAccessibilityDelegateCompat.OnInitializeAccessibilityNodeInfo

Root cause

Xamarin.AndroidX.Core 1.17.0.2 changed AccessibilityNodeInfoCompat.Checked from a bool property to an int property — a binary breaking change:

• 1.16.0.3: bool Checked { get; set; } → void set_Checked(bool)
• 1.17.0.2: int Checked { get; set; } → void set_Checked(int) + SetChecked(bool)

MAUI 10.0.70's MauiAccessibilityDelegateCompat.OnInitializeAccessibilityNodeInfo (in Microsoft.Maui.dll) was compiled against 1.16.0.3 and calls set_Checked(bool). At runtime, if Xamarin.AndroidX.Core has been resolved to 1.17.0.2 (e.g., pulled in transitively by another package), set_Checked(bool) no longer exists → MissingMethodException.

This is not an IL linker issue. The method signature was removed from 1.17.0.2.

The fix: MauiAccessibilityDelegateCompat.OnInitializeAccessibilityNodeInfo should call SetChecked(bool) (present in both 1.16.0.3 and 1.17.0.2) instead of the bool Checked property setter.

Reproduction repository

https://github.com/edgiardina/MauiAccessibilityRepro

Steps to reproduce

1. Clone https://github.com/edgiardina/MauiAccessibilityRepro
2. Connect an Android device
3. Enable Voice Access:

   adb shell settings put secure enabled_accessibility_services com.google.android.apps.accessibility.voiceaccess/.JustSpeakService
   adb shell settings put secure accessibility_enabled 1
   

4. Build and deploy in Release mode:

   dotnet build -t:Run -f net10.0-android -c Release -p:AndroidAttachDebugger=false
   

5. Tap "Navigate to CollectionView page"

Actual behavior

App crashes:

E AndroidRuntime: FATAL EXCEPTION: main
E AndroidRuntime: android.runtime.JavaProxyThrowable: [System.MissingMethodException]: Method not found: void AndroidX.Core.View.Accessibility.AccessibilityNodeInfoCompat.set_Checked(bool)
E AndroidRuntime:   at Microsoft.Maui.Platform.MauiAccessibilityDelegateCompat.OnInitializeAccessibilityNodeInfo + 0x43(Unknown Source)
E AndroidRuntime:   at AndroidX.Core.View.AccessibilityDelegateCompat.n_OnInitializeAccessibilityNodeInfo_Landroid_view_View_Landroidx_core_view_accessibility_AccessibilityNodeInfoCompat_ + 0x25(Unknown Source)
E AndroidRuntime:   at crc6452ffdc5b34af3a0f.MauiAccessibilityDelegateCompat.n_onInitializeAccessibilityNodeInfo(Native Method)
E AndroidRuntime:   at crc6452ffdc5b34af3a0f.MauiAccessibilityDelegateCompat.onInitializeAccessibilityNodeInfo(MauiAccessibilityDelegateCompat.java:36)
E AndroidRuntime:   at androidx.core.view.AccessibilityDelegateCompat$AccessibilityDelegateAdapter.onInitializeAccessibilityNodeInfo(AccessibilityDelegateCompat.java:90)
E AndroidRuntime:   at android.view.View.onInitializeAccessibilityNodeInfo(View.java:9835)
E AndroidRuntime:   at android.view.View.createAccessibilityNodeInfoInternal(View.java:9796)
E AndroidRuntime:   at android.view.View$AccessibilityDelegate.createAccessibilityNodeInfo(View.java:34809)
E AndroidRuntime:   at android.view.View.createAccessibilityNodeInfo(View.java:9779)
E AndroidRuntime:   at android.view.AccessibilityInteractionController$AccessibilityNodePrefetcher.prefetchDescendantsOfRealNode(AccessibilityInteractionController.java:1622)

Environment

• Microsoft.Maui.Controls 10.0.70
• Xamarin.AndroidX.Core 1.17.0.2 (pinned in repro; in production apps this arrives transitively)
• .NET 10, net10.0-android, minSdk 24
• Build configuration: Release
• Confirmed on Android 16 (API 36, Samsung Galaxy S23)

Workaround

Either:

• Downgrade to Microsoft.Maui.Controls 10.0.51
• Or pin <PackageReference Include="Xamarin.AndroidX.Core" Version="1.16.0.3" /> in your app

[MihuBot]

I'm a bot. Here is a possible related and/or duplicate issue (I may be wrong):

• MAUI 10.0.70 - App Crash - Method not found: void AndroidX.Core.View.Accessibility.AccessibilityNodeInfoCompat.set_Checked(bool) #35579

[sheiksyedm]

Duplicate issue #35584.

Added the reason here:
#35584 (comment)