code review 2

Author: scrinoman

omegarecyclerviewlibs/src/main/java/com/omega_r/libs/omegarecyclerview/OmegaRecyclerView.java

@@ -23,7 +23,7 @@
 import com.omega_r.libs.omegarecyclerview.sticky_decoration.BaseStickyDecoration;
 import com.omega_r.libs.omegarecyclerview.sticky_decoration.StickyAdapter;
 import com.omega_r.libs.omegarecyclerview.sticky_decoration.HeaderStickyDecoration;
-import com.omega_r.libs.omegarecyclerview.sticky_decoration.StickyMiddleDecoration;
+import com.omega_r.libs.omegarecyclerview.sticky_decoration.MiddleStickyDecoration;
 import com.omega_r.libs.omegarecyclerview.swipe_menu.SwipeMenuHelper;
 
 import java.util.ArrayList;
@@ -269,7 +269,7 @@ protected BaseStickyDecoration provideStickyDecoration(@NonNull RecyclerView.Ada
         if (stickyAdapter == null) return null;
         switch (mStickyMode) {
             case StickyAdapter.Mode.MIDDLE:
-                return new StickyMiddleDecoration(stickyAdapter);
+                return new MiddleStickyDecoration(stickyAdapter);
             case StickyAdapter.Mode.HEADER:
             default:
                 return new HeaderStickyDecoration(stickyAdapter);

omegarecyclerviewlibs/src/main/java/com/omega_r/libs/omegarecyclerview/sticky_decoration/MiddleStickyDecoration.java

@@ -0,0 +1,29 @@
+package com.omega_r.libs.omegarecyclerview.sticky_decoration;
+
+import android.view.View;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.RecyclerView;
+
+public class MiddleStickyDecoration extends StickyDecoration {
+
+    public MiddleStickyDecoration(@NonNull StickyAdapter adapter) {
+        super(adapter);
+    }
+
+    @Override
+    protected int getStickerTop(boolean isReverseLayout, View child, View sticker, int layoutPos) {
+        int top = (int) child.getY();
+        if (!isReverseLayout && layoutPos == 0 && top > 0) {
+            return Math.max(0, top - mItemSpace);
+        }
+        return Math.max(0, top);
+    }
+
+    @Override
+    int getOffset(@Nullable RecyclerView.ViewHolder stickyHolder, int stickerHeight, View next) {
+        return (int) (next.getY() - stickerHeight);
+    }
+
+}