Update positions if only an update is needed and not a recreate, which calls just bind instead of recreating all views

Author: Jawnnypoo

adapterlayout/src/main/java/com/commit451/adapterlayout/AdapterLayoutDelegate.java

@@ -34,7 +34,7 @@ public void onItemRangeChanged(int positionStart, int itemCount) {
         @Override
         public void onItemRangeChanged(int positionStart, int itemCount, Object payload) {
             super.onItemRangeChanged(positionStart, itemCount, payload);
-            recreateViews();
+            updateViews(positionStart, itemCount, payload);
         }
 
         @Override

app/src/main/java/com/commit451/adapterlayout/sample/Cheese.java

@@ -20,4 +20,8 @@ public int getDrawable() {
     public String getName() {
         return mName;
     }
+
+    public void setName(String name) {
+        mName = name;
+    }
 }

app/src/main/java/com/commit451/adapterlayout/sample/CheeseAdapter.java

@@ -47,11 +47,11 @@ public void removeLast() {
         }
     }
 
-    public void removeMiddle() {
+    public void changeMiddle() {
         if (!mValues.isEmpty()) {
-            int indexRemoved = mValues.size()/2;
-            mValues.remove(indexRemoved);
-            notifyItemRemoved(indexRemoved);
+            int index = mValues.size()/2;
+            mValues.get(index).setName("Swiss");
+            notifyItemChanged(index);
         }
     }
 

app/src/main/java/com/commit451/adapterlayout/sample/CustomAdapterLayoutActivity.java

@@ -28,9 +28,9 @@ void onRemoveCheeseClicked() {
         mAdapter.removeLast();
     }
 
-    @OnClick(R.id.remove_middle)
+    @OnClick(R.id.change_middle)
     void onRemoveMiddleClicked() {
-        mAdapter.removeMiddle();
+        mAdapter.changeMiddle();
     }
 
     @OnClick(R.id.new_adapter)

app/src/main/java/com/commit451/adapterlayout/sample/MainActivity.java

@@ -34,9 +34,9 @@ void onRemoveCheeseClicked() {
         mAdapter.removeLast();
     }
 
-    @OnClick(R.id.remove_middle)
+    @OnClick(R.id.change_middle)
     void onRemoveMiddleClicked() {
-        mAdapter.removeMiddle();
+        mAdapter.changeMiddle();
     }
 
     @OnClick(R.id.new_adapter)

app/src/main/res/layout/activity_main.xml

@@ -43,10 +43,10 @@
                     android:text="Remove Last" />
 
                 <Button
-                    android:id="@+id/remove_middle"
+                    android:id="@+id/change_middle"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
-                    android:text="Remove Middle" />
+                    android:text="Change Middle" />
 
                 <Button
                     android:id="@+id/new_adapter"