Runtime/UXComponent/Hotkey/UXHotkeyRegisterManager.cs

@@ -33,12 +33,10 @@ namespace UnityEngine.UI
         {
             Holder = holder;
             HierarchyDepth = GetHierarchyDepth(holder.transform);
-            ParentHolder = FindParentHolder(holder);
-            BlocksLowerScopes = ParentHolder == null;
+            BlocksLowerScopes = FindParentHolder(holder) == null;
         }
 
         public readonly UIHolderObjectBase Holder;
-        public readonly UIHolderObjectBase ParentHolder;
         public readonly int HierarchyDepth;
         public readonly bool BlocksLowerScopes;
         public readonly Dictionary<string, List<HotkeyRegistration>> RegistrationsByAction = new(StringComparer.Ordinal);
@@ -426,30 +424,28 @@ namespace UnityEngine.UI
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         private static void Dispatch(string actionId, EHotkeyPressType pressType)
         {
-            HotkeyScope leafScope = GetTopLeafScope();
-            if (leafScope == null)
+            HotkeyScope[] leafScopes = GetLeafScopes();
+            if (leafScopes.Length == 0)
             {
                 return;
             }
 
-            TryDispatchToScopeChain(leafScope, actionId, pressType);
+            TryDispatchToScopeChain(leafScopes[0], actionId, pressType);
         }
 
         private static bool TryDispatchToScopeChain(HotkeyScope leafScope, string actionId, EHotkeyPressType pressType)
         {
-            HotkeyScope current = leafScope;
-            while (current != null)
+            UIHolderObjectBase currentHolder = leafScope.Holder;
+            while (currentHolder != null)
             {
-                if (TryGetLatestRegistration(current, actionId, pressType, out var registration))
+                if (_scopes.TryGetValue(currentHolder, out var scope)
+                    && TryGetLatestRegistration(scope, actionId, pressType, out var registration))
                 {
                     registration.Trigger?.HotkeyActionTrigger();
                     return true;
                 }
 
-                UIHolderObjectBase parentHolder = current.ParentHolder;
-                current = parentHolder != null && _scopes.TryGetValue(parentHolder, out var parentScope)
-                    ? parentScope
-                    : null;
+                currentHolder = FindParentHolder(currentHolder);
             }
 
             return false;
@@ -474,7 +470,7 @@ namespace UnityEngine.UI
             return false;
         }
 
-        private static HotkeyScope GetTopLeafScope()
+        private static HotkeyScope[] GetLeafScopes()
         {
             _leafScopes.Clear();
             _ancestorHolders.Clear();
@@ -490,18 +486,11 @@ namespace UnityEngine.UI
                     continue;
                 }
 
-                UIHolderObjectBase parentHolder = scope.ParentHolder;
+                UIHolderObjectBase parentHolder = FindParentHolder(scope.Holder);
                 while (parentHolder != null)
                 {
                     _ancestorHolders.Add(parentHolder);
-                    if (_scopes.TryGetValue(parentHolder, out var parentScope))
-                    {
-                        parentHolder = parentScope.ParentHolder;
-                    }
-                    else
-                    {
-                        break;
-                    }
+                    parentHolder = FindParentHolder(parentHolder);
                 }
             }
 
@@ -517,13 +506,8 @@ namespace UnityEngine.UI
                 }
             }
 
-            if (_leafScopes.Count == 0)
-            {
-                return null;
-            }
-
             _leafScopes.Sort(CompareScopePriority);
-            return _leafScopes[0];
+            return _leafScopes.ToArray();
         }
 
         private static bool IsScopeActive(HotkeyScope scope)

Runtime/UXComponent/Navigation/UXNavigationRuntime.cs

@@ -23,9 +23,6 @@ namespace UnityEngine.UI
         private ulong _activationSerial;
         private bool _missingEventSystemLogged;
 
-        private bool _topScopeDirty = true;
-        private bool _suppressionDirty = true;
-
         [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.AfterSceneLoad)]
         private static void Bootstrap()
         {
@@ -104,8 +101,6 @@ namespace UnityEngine.UI
             }
 
             _scopes.Add(scope);
-            _topScopeDirty = true;
-            _suppressionDirty = true;
         }
 
         internal void UnregisterScope(UXNavigationScope scope)
@@ -122,17 +117,7 @@ namespace UnityEngine.UI
 
             scope.IsAvailable = false;
             scope.SetNavigationSuppressed(false);
-
-            int idx = _scopes.IndexOf(scope);
-            if (idx >= 0)
-            {
-                int last = _scopes.Count - 1;
-                _scopes[idx] = _scopes[last];
-                _scopes.RemoveAt(last);
-            }
-
-            _topScopeDirty = true;
-            _suppressionDirty = true;
+            _scopes.Remove(scope);
         }
 
         internal void MarkDiscoveryDirty()
@@ -153,22 +138,13 @@ namespace UnityEngine.UI
                 DiscoverScopes();
             }
 
-            if (_topScopeDirty)
+            UXNavigationScope newTopScope = FindTopScope();
+            if (!ReferenceEquals(_topScope, newTopScope))
             {
-                UXNavigationScope newTopScope = FindTopScope();
-                _topScopeDirty = false;
-                if (!ReferenceEquals(_topScope, newTopScope))
-                {
-                    _topScope = newTopScope;
-                    _suppressionDirty = true;
-                }
+                _topScope = newTopScope;
             }
 
-            if (_suppressionDirty)
-            {
-                ApplyScopeSuppression();
-                _suppressionDirty = false;
-            }
+            ApplyScopeSuppression();
 
             if (UXInputModeService.CurrentMode == UXInputMode.Gamepad)
             {
@@ -261,9 +237,6 @@ namespace UnityEngine.UI
                 {
                     _scopes[i]?.InvalidateSelectableCache();
                 }
-
-                _topScopeDirty = true;
-                _suppressionDirty = true;
             }
         }
 
@@ -302,8 +275,6 @@ namespace UnityEngine.UI
                     {
                         scope.ActivationSerial = ++_activationSerial;
                     }
-
-                    _suppressionDirty = true;
                 }
 
                 if (!available)
@@ -333,13 +304,11 @@ namespace UnityEngine.UI
                 return false;
             }
 
-            return !scope.IsNavigationSkipped
+            return !IsNavigationSkipped(scope.transform)
                    && scope.HasAvailableSelectable()
                    && TryGetInteractiveLayerRoot(scope.transform, out _);
         }
 
-        // 保留静态方法用于 DiscoverScopes 中对 LayerRoot / Holder 节点的检测
-        // 这些节点无 UXNavigationScope，调用频次低（仅在 dirty 时），无需缓存
         private static bool IsNavigationSkipped(Transform current)
         {
             return current != null && current.GetComponentInParent<UXNavigationSkip>(true) != null;

Runtime/UXComponent/Navigation/UXNavigationScope.cs

@@ -33,9 +33,6 @@ namespace UnityEngine.UI
         private bool _navigationSuppressed;
         private int _cachedHierarchyDepth = -1;
 
-        private bool _cachedIsSkipped;
-        private bool _isSkippedCacheValid;
-
         internal ulong ActivationSerial { get; set; }
         internal bool IsAvailable { get; set; }
         internal bool WasAvailable { get; set; }
@@ -50,19 +47,6 @@ namespace UnityEngine.UI
         public bool RequireSelectionWhenGamepad => _requireSelectionWhenGamepad;
         public bool BlockLowerScopes => _blockLowerScopes;
 
-        internal bool IsNavigationSkipped
-        {
-            get
-            {
-                if (!_isSkippedCacheValid)
-                {
-                    _cachedIsSkipped = GetComponentInParent<UXNavigationSkip>(true) != null;
-                    _isSkippedCacheValid = true;
-                }
-                return _cachedIsSkipped;
-            }
-        }
-
         internal Canvas Canvas
         {
             get
@@ -124,7 +108,6 @@ namespace UnityEngine.UI
             _cachedCanvas = null;
             _cachedHolder = null;
             _cachedHierarchyDepth = -1;
-            _isSkippedCacheValid = false;
         }
 
 #if UNITY_EDITOR
@@ -236,12 +219,12 @@ namespace UnityEngine.UI
 
         internal void SetNavigationSuppressed(bool suppressed)
         {
+            RefreshSelectableCache();
             if (_navigationSuppressed == suppressed)
             {
                 return;
             }
 
-            RefreshSelectableCache();
             _navigationSuppressed = suppressed;
             for (int i = 0; i < _cachedSelectables.Count; i++)
             {
@@ -298,11 +281,11 @@ namespace UnityEngine.UI
             }
 
             _removeBuffer.Clear();
-            foreach (Selectable key in _baselineNavigation.Keys)
+            foreach (var pair in _baselineNavigation)
             {
-                if (!_cachedSelectableSet.Contains(key))
+                if (!_cachedSelectableSet.Contains(pair.Key))
                 {
-                    _removeBuffer.Add(key);
+                    _removeBuffer.Add(pair.Key);
                 }
             }