Runtime/RecyclerView/Adapter/Adapter.cs

@@ -78,6 +78,10 @@ namespace AlicizaX.UI
                 {
                     typedItemRender.BindData(data, index);
                 }
+                else
+                {
+                    itemRender.Bind(data, index);
+                }
 
                 bool selected = index == choiceIndex;
                 itemRender.SyncSelection(selected);
@@ -149,14 +153,14 @@ namespace AlicizaX.UI
             recyclerView.RebindVisibleDataRange(index, count);
         }
 
-        public virtual void NotifyItemInserted()
+        public virtual void NotifyItemInserted(int index)
         {
             CoerceChoiceIndex();
             recyclerView.RequestLayout();
             recyclerView.Refresh();
         }
 
-        public virtual void NotifyItemRangeInserted(int count)
+        public virtual void NotifyItemRangeInserted(int index, int count)
         {
             if (count <= 0)
             {
@@ -168,14 +172,14 @@ namespace AlicizaX.UI
             recyclerView.Refresh();
         }
 
-        public virtual void NotifyItemRemoved()
+        public virtual void NotifyItemRemoved(int index)
         {
             CoerceChoiceIndex();
             recyclerView.RequestLayout();
             recyclerView.Refresh();
         }
 
-        public virtual void NotifyItemRangeRemoved(int count)
+        public virtual void NotifyItemRangeRemoved(int index, int count)
         {
             if (count <= 0)
             {
@@ -252,7 +256,7 @@ namespace AlicizaX.UI
             }
 
             list.Add(item);
-            NotifyItemInserted();
+            NotifyItemInserted(list.Count - 1);
         }
 
         public void AddRange(IEnumerable<T> collection)
@@ -262,10 +266,11 @@ namespace AlicizaX.UI
                 return;
             }
 
+            int startIndex = list.Count;
             list.AddRange(collection);
             if (collection is ICollection<T> itemCollection)
             {
-                NotifyItemRangeInserted(itemCollection.Count);
+                NotifyItemRangeInserted(startIndex, itemCollection.Count);
                 return;
             }
 
@@ -275,7 +280,7 @@ namespace AlicizaX.UI
         public void Insert(int index, T item)
         {
             list.Insert(index, item);
-            NotifyItemInserted();
+            NotifyItemInserted(index);
         }
 
         public void InsertRange(int index, IEnumerable<T> collection)
@@ -288,7 +293,7 @@ namespace AlicizaX.UI
             list.InsertRange(index, collection);
             if (collection is ICollection<T> itemCollection)
             {
-                NotifyItemRangeInserted(itemCollection.Count);
+                NotifyItemRangeInserted(index, itemCollection.Count);
                 return;
             }
 
@@ -306,13 +311,13 @@ namespace AlicizaX.UI
             if (index < 0 || index >= GetItemCount()) return;
 
             list.RemoveAt(index);
-            NotifyItemRemoved();
+            NotifyItemRemoved(index);
         }
 
         public void RemoveRange(int index, int count)
         {
             list.RemoveRange(index, count);
-            NotifyItemRangeRemoved(count);
+            NotifyItemRangeRemoved(index, count);
         }
 
         public void RemoveAll(Predicate<T> match)
@@ -330,7 +335,7 @@ namespace AlicizaX.UI
 
             int count = list.Count;
             list.Clear();
-            NotifyItemRangeRemoved(count);
+            NotifyItemRangeRemoved(0, count);
         }
 
         public void Reverse(int index, int count)

Runtime/RecyclerView/Adapter/ItemRender.cs

@@ -11,6 +11,13 @@ namespace AlicizaX.UI
     /// </summary>
     internal interface IItemRender
     {
+        /// <summary>
+        /// 将指定数据绑定到当前渲染实例。
+        /// </summary>
+        /// <param name="data">待绑定的数据对象。</param>
+        /// <param name="index">当前数据索引。</param>
+        void Bind(object data, int index);
+
         /// <summary>
         /// 更新当前渲染实例的选中状态。
         /// </summary>
@@ -58,6 +65,13 @@ namespace AlicizaX.UI
         /// </summary>
         internal abstract void Detach();
 
+        /// <summary>
+        /// 以对象形式绑定数据。
+        /// </summary>
+        /// <param name="data">待绑定的数据对象。</param>
+        /// <param name="index">当前数据索引。</param>
+        internal abstract void BindObject(object data, int index);
+
         /// <summary>
         /// 更新内部记录的选中状态。
         /// </summary>
@@ -71,6 +85,16 @@ namespace AlicizaX.UI
         /// </summary>
         internal abstract void UnbindInternal();
 
+        /// <summary>
+        /// 由框架内部调用，将对象数据绑定到当前渲染实例。
+        /// </summary>
+        /// <param name="data">待绑定的数据对象。</param>
+        /// <param name="index">当前数据索引。</param>
+        void IItemRender.Bind(object data, int index)
+        {
+            BindObject(data, index);
+        }
+
         /// <summary>
         /// 由框架内部调用，更新当前渲染实例的选中状态。
         /// </summary>
@@ -182,6 +206,21 @@ namespace AlicizaX.UI
         /// </summary>
         protected virtual RecyclerNavigationOptions NavigationOptions => RecyclerNavigationOptions.Circular;
 
+        /// <summary>
+        /// 以对象形式绑定数据并执行强类型校验。
+        /// </summary>
+        /// <param name="data">待绑定的数据对象。</param>
+        /// <param name="index">当前数据索引。</param>
+        internal override void BindObject(object data, int index)
+        {
+            if (data is not TData itemData)
+            {
+                throw new InvalidCastException(
+                    $"ItemRender '{GetType().Name}' expected data '{typeof(TData).Name}', but got '{data?.GetType().Name ?? "null"}'.");
+            }
+
+            BindCore(itemData, index);
+        }
 
         /// <summary>
         /// 由框架内部调用，使用强类型数据执行绑定。