https://github.com/AndreiMisiukevich/TouchEffect/issues/48

Author: AndreiMisiukevich

TouchEffect.Droid/PlatformTouchEff.cs

@@ -12,8 +12,9 @@
 using Android.Widget;
 using Color = Android.Graphics.Color;
 using Android.Content.Res;
-using Android.Content;
 using static System.Math;
+using Android.Views.Accessibility;
+using Android.Content;
 
 [assembly: ResolutionGroupName(nameof(TouchEffect))]
 [assembly: ExportEffect(typeof(PlatformTouchEff), nameof(TouchEff))]
@@ -24,7 +25,7 @@ public class PlatformTouchEff : PlatformEffect
     {
         public static void Preserve() { }
 
-
+        private AccessibilityManager _accessibilityManager;
         private TouchEff _effect;
         private bool _isHoverSupported;
         private RippleDrawable _ripple;
@@ -35,17 +36,24 @@ public static void Preserve() { }
         private float _startY;
         private bool _canceled;
 
+        private bool IsAccessibilityMode =>
+            _accessibilityManager != null &&
+            _accessibilityManager.IsEnabled &&
+            _accessibilityManager.IsTouchExplorationEnabled;
+
         protected override void OnAttached()
         {
             if (View == null)
             {
                 return;
             }
+            _accessibilityManager = View.Context.GetSystemService(Context.AccessibilityService) as AccessibilityManager;
             _effect = Element.GetTouchEff();
             _effect.Control = Element as VisualElement;
             _effect.ForceUpdateState(false);
 
             View.Touch += OnTouch;
+            View.Click += OnClick;
 
             if (_effect.NativeAnimation && Group != null)
             {
@@ -71,13 +79,15 @@ protected override void OnDetached()
         {
             try
             {
+                _accessibilityManager = null;
                 _effect.Control = null;
                 _effect = null;
 
                 if (View != null)
                 {
                     View.LayoutChange -= LayoutChange;
                     View.Touch -= OnTouch;
+                    View.Click -= OnClick;
                 }
 
                 if (_viewOverlay != null)
@@ -102,8 +112,11 @@ protected override void OnDetached()
 
         private void OnTouch(object sender, AView.TouchEventArgs e)
         {
+            if (IsAccessibilityMode)
+            {
+                return;
+            }
             e.Handled = true;
-
             switch (e.Event.ActionMasked)
             {
                 case MotionEventActions.Down:
@@ -172,6 +185,15 @@ private void OnTouch(object sender, AView.TouchEventArgs e)
             }
         }
 
+        private void OnClick(object sender, System.EventArgs args)
+        {
+            if (!IsAccessibilityMode)
+            {
+                return;
+            }
+            HandleEnd(TouchStatus.Completed);
+        }
+
         private void HandleEnd(TouchStatus status)
         {
             if (_canceled)
@@ -254,4 +276,4 @@ private void LayoutChange(object sender, AView.LayoutChangeEventArgs e)
             _viewOverlay.Bottom = group.Height;
         }
     }
-}
+}