fix #1318

library/src/main/java/com/chad/library/adapter/base/BaseItemDraggableAdapter.java

@@ -49,18 +49,18 @@ public BaseItemDraggableAdapter(int layoutResId, List<T> data) {
      * To bind different types of holder and solve different the bind events
      *
      * @param holder
-     * @param positions
+     * @param position
      * @see #getDefItemViewType(int)
      */
     @Override
-    public void onBindViewHolder(K holder, int positions) {
-        super.onBindViewHolder(holder, positions);
+    public void onBindViewHolder(K holder, int position) {
+        super.onBindViewHolder(holder, position);
         int viewType = holder.getItemViewType();
 
         if (mItemTouchHelper != null && itemDragEnabled && viewType != LOADING_VIEW && viewType != HEADER_VIEW
                 && viewType != EMPTY_VIEW && viewType != FOOTER_VIEW) {
             if (mToggleViewId != NO_TOGGLE_VIEW) {
-                View toggleView = ((BaseViewHolder) holder).getView(mToggleViewId);
+                View toggleView = holder.getView(mToggleViewId);
                 if (toggleView != null) {
                     toggleView.setTag(R.id.BaseQuickAdapter_viewholder_support, holder);
                     if (mDragOnLongPress) {

library/src/main/java/com/chad/library/adapter/base/BaseMultiItemQuickAdapter.java

@@ -2,6 +2,7 @@
 
 import android.support.annotation.LayoutRes;
 import android.util.SparseArray;
+import android.util.SparseIntArray;
 import android.view.ViewGroup;
 
 import com.chad.library.adapter.base.entity.MultiItemEntity;
@@ -16,7 +17,7 @@ public abstract class BaseMultiItemQuickAdapter<T extends MultiItemEntity, K ext
     /**
      * layouts indexed with their types
      */
-    private SparseArray<Integer> layouts;
+    private SparseIntArray layouts;
 
     private static final int DEFAULT_VIEW_TYPE = -0xff;
     public static final int TYPE_NOT_FOUND = -404;
@@ -50,12 +51,12 @@ protected K onCreateDefViewHolder(ViewGroup parent, int viewType) {
     }
 
     private int getLayoutId(int viewType) {
-        return layouts.get(viewType,TYPE_NOT_FOUND);
+        return layouts.get(viewType, TYPE_NOT_FOUND);
     }
 
     protected void addItemType(int type, @LayoutRes int layoutResId) {
         if (layouts == null) {
-            layouts = new SparseArray<>();
+            layouts = new SparseIntArray();
         }
         layouts.put(type, layoutResId);
     }

library/src/main/java/com/chad/library/adapter/base/BaseQuickAdapter.java

@@ -908,21 +908,20 @@ public void setSpanSizeLookup(SpanSizeLookup spanSizeLookup) {
      * To bind different types of holder and solve different the bind events
      *
      * @param holder
-     * @param positions
+     * @param position
      * @see #getDefItemViewType(int)
      */
     @Override
-    public void onBindViewHolder(K holder, int positions) {
+    public void onBindViewHolder(K holder, int position) {
         //Add up fetch logic, almost like load more, but simpler.
-        autoUpFetch(positions);
+        autoUpFetch(position);
         //Do not move position, need to change before LoadMoreView binding
-        autoLoadMore(positions);
+        autoLoadMore(position);
         int viewType = holder.getItemViewType();
 
         switch (viewType) {
             case 0:
-
-                convert(holder, mData.get(holder.getLayoutPosition() - getHeaderLayoutCount()));
+                convert(holder, getItem(position - getHeaderLayoutCount()));
                 break;
             case LOADING_VIEW:
                 mLoadMoreView.convert(holder);
@@ -934,7 +933,7 @@ public void onBindViewHolder(K holder, int positions) {
             case FOOTER_VIEW:
                 break;
             default:
-                convert(holder, mData.get(holder.getLayoutPosition() - getHeaderLayoutCount()));
+                convert(holder, getItem(position - getHeaderLayoutCount()));
                 break;
         }
     }

library/src/main/java/com/chad/library/adapter/base/BaseSectionQuickAdapter.java

@@ -43,18 +43,18 @@ protected K onCreateDefViewHolder(ViewGroup parent, int viewType) {
 
     @Override
     protected boolean isFixedViewType(int type) {
-        return super.isFixedViewType(type)|| type == SECTION_HEADER_VIEW;
+        return super.isFixedViewType(type) || type == SECTION_HEADER_VIEW;
     }
 
     @Override
-    public void onBindViewHolder(K holder, int positions) {
+    public void onBindViewHolder(K holder, int position) {
         switch (holder.getItemViewType()) {
             case SECTION_HEADER_VIEW:
                 setFullSpan(holder);
-                convertHead(holder, mData.get(holder.getLayoutPosition() - getHeaderLayoutCount()));
+                convertHead(holder, getItem(position - getHeaderLayoutCount()));
                 break;
             default:
-                super.onBindViewHolder(holder, positions);
+                super.onBindViewHolder(holder, position);
                 break;
         }
     }

library/src/main/java/com/chad/library/adapter/base/BaseViewHolder.java

@@ -40,6 +40,7 @@
 
 import java.util.HashSet;
 import java.util.LinkedHashSet;
+import java.util.Set;
 
 
 /**
@@ -52,7 +53,7 @@ public class BaseViewHolder extends RecyclerView.ViewHolder {
      */
     private final SparseArray<View> views;
 
-    public HashSet<Integer> getNestViews() {
+    public Set<Integer> getNestViews() {
         return nestViews;
     }
 

library/src/main/java/com/chad/library/adapter/base/animation/AlphaInAnimation.java

@@ -9,7 +9,6 @@
  * https://github.com/CymChad/BaseRecyclerViewAdapterHelper
  */
 public class AlphaInAnimation implements BaseAnimation {
-
     private static final float DEFAULT_ALPHA_FROM = 0f;
     private final float mFrom;
 

library/src/main/java/com/chad/library/adapter/base/animation/BaseAnimation.java

@@ -6,8 +6,6 @@
 /**
  * https://github.com/CymChad/BaseRecyclerViewAdapterHelper
  */
-public interface  BaseAnimation {
-
+public interface BaseAnimation {
     Animator[] getAnimators(View view);
-
 }

library/src/main/java/com/chad/library/adapter/base/animation/ScaleInAnimation.java

@@ -9,22 +9,21 @@
  * https://github.com/CymChad/BaseRecyclerViewAdapterHelper
  */
 public class ScaleInAnimation implements BaseAnimation {
+    private static final float DEFAULT_SCALE_FROM = .5f;
+    private final float mFrom;
 
-  private static final float DEFAULT_SCALE_FROM = .5f;
-  private final float mFrom;
+    public ScaleInAnimation() {
+        this(DEFAULT_SCALE_FROM);
+    }
 
-  public ScaleInAnimation() {
-    this(DEFAULT_SCALE_FROM);
-  }
+    public ScaleInAnimation(float from) {
+        mFrom = from;
+    }
 
-  public ScaleInAnimation(float from) {
-    mFrom = from;
-  }
-
-  @Override
-  public Animator[] getAnimators(View view) {
-    ObjectAnimator scaleX = ObjectAnimator.ofFloat(view, "scaleX", mFrom, 1f);
-    ObjectAnimator scaleY = ObjectAnimator.ofFloat(view, "scaleY", mFrom, 1f);
-    return new ObjectAnimator[] { scaleX, scaleY };
-  }
+    @Override
+    public Animator[] getAnimators(View view) {
+        ObjectAnimator scaleX = ObjectAnimator.ofFloat(view, "scaleX", mFrom, 1f);
+        ObjectAnimator scaleY = ObjectAnimator.ofFloat(view, "scaleY", mFrom, 1f);
+        return new ObjectAnimator[]{scaleX, scaleY};
+    }
 }

library/src/main/java/com/chad/library/adapter/base/animation/SlideInBottomAnimation.java

@@ -9,9 +9,6 @@
  * https://github.com/CymChad/BaseRecyclerViewAdapterHelper
  */
 public class SlideInBottomAnimation implements BaseAnimation {
-
-
-
     @Override
     public Animator[] getAnimators(View view) {
         return new Animator[]{

library/src/main/java/com/chad/library/adapter/base/animation/SlideInLeftAnimation.java

@@ -9,12 +9,10 @@
  * https://github.com/CymChad/BaseRecyclerViewAdapterHelper
  */
 public class SlideInLeftAnimation implements BaseAnimation {
-
-
-  @Override
-  public Animator[] getAnimators(View view) {
-    return new Animator[] {
-        ObjectAnimator.ofFloat(view, "translationX", -view.getRootView().getWidth(), 0)
-    };
-  }
+    @Override
+    public Animator[] getAnimators(View view) {
+        return new Animator[]{
+                ObjectAnimator.ofFloat(view, "translationX", -view.getRootView().getWidth(), 0)
+        };
+    }
 }

library/src/main/java/com/chad/library/adapter/base/animation/SlideInRightAnimation.java

@@ -9,8 +9,6 @@
  * https://github.com/CymChad/BaseRecyclerViewAdapterHelper
  */
 public class SlideInRightAnimation implements BaseAnimation {
-
-
     @Override
     public Animator[] getAnimators(View view) {
         return new Animator[]{

library/src/main/java/com/chad/library/adapter/base/callback/ItemDragAndSwipeCallback.java

@@ -20,7 +20,7 @@ public class ItemDragAndSwipeCallback extends ItemTouchHelper.Callback {
     float mMoveThreshold = 0.1f;
     float mSwipeThreshold = 0.7f;
 
-    int mDragMoveFlags =  ItemTouchHelper.UP | ItemTouchHelper.DOWN | ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT;
+    int mDragMoveFlags = ItemTouchHelper.UP | ItemTouchHelper.DOWN | ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT;
     int mSwipeMoveFlags = ItemTouchHelper.END;
 
     public ItemDragAndSwipeCallback(BaseItemDraggableAdapter adapter) {
@@ -59,12 +59,12 @@ public void clearView(RecyclerView recyclerView, RecyclerView.ViewHolder viewHol
         }
 
         if (viewHolder.itemView.getTag(R.id.BaseQuickAdapter_dragging_support) != null
-                && (Boolean)viewHolder.itemView.getTag(R.id.BaseQuickAdapter_dragging_support)) {
+                && (Boolean) viewHolder.itemView.getTag(R.id.BaseQuickAdapter_dragging_support)) {
             mAdapter.onItemDragEnd(viewHolder);
             viewHolder.itemView.setTag(R.id.BaseQuickAdapter_dragging_support, false);
         }
         if (viewHolder.itemView.getTag(R.id.BaseQuickAdapter_swiping_support) != null
-                && (Boolean)viewHolder.itemView.getTag(R.id.BaseQuickAdapter_swiping_support)) {
+                && (Boolean) viewHolder.itemView.getTag(R.id.BaseQuickAdapter_swiping_support)) {
             mAdapter.onItemSwipeClear(viewHolder);
             viewHolder.itemView.setTag(R.id.BaseQuickAdapter_swiping_support, false);
         }
@@ -119,7 +119,7 @@ public float getSwipeThreshold(RecyclerView.ViewHolder viewHolder) {
      * half of RecyclerView's width or height, depending on the swipe direction.
      *
      * @param swipeThreshold A float value that denotes the fraction of the View size. Default value
-     * is .8f .
+     *                       is .8f .
      */
     public void setSwipeThreshold(float swipeThreshold) {
         mSwipeThreshold = swipeThreshold;
@@ -132,7 +132,7 @@ public void setSwipeThreshold(float swipeThreshold) {
      * below it for a possible drop.
      *
      * @param moveThreshold A float value that denotes the fraction of the View size. Default value is
-     * .1f .
+     *                      .1f .
      */
     public void setMoveThreshold(float moveThreshold) {
         mMoveThreshold = moveThreshold;
@@ -142,6 +142,7 @@ public void setMoveThreshold(float moveThreshold) {
      * <p>Set the drag movement direction.</p>
      * <p>The value should be ItemTouchHelper.UP, ItemTouchHelper.DOWN, ItemTouchHelper.LEFT, ItemTouchHelper.RIGHT or their combination.</p>
      * You can combine them like ItemTouchHelper.UP | ItemTouchHelper.DOWN, it means that the item could only move up and down when dragged.
+     *
      * @param dragMoveFlags the drag movement direction. Default value is ItemTouchHelper.UP | ItemTouchHelper.DOWN | ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT.
      */
     public void setDragMoveFlags(int dragMoveFlags) {
@@ -152,6 +153,7 @@ public void setDragMoveFlags(int dragMoveFlags) {
      * <p>Set the swipe movement direction.</p>
      * <p>The value should be ItemTouchHelper.START, ItemTouchHelper.END or their combination.</p>
      * You can combine them like ItemTouchHelper.START | ItemTouchHelper.END, it means that the item could swipe to both left or right.
+     *
      * @param swipeMoveFlags the swipe movement direction. Default value is ItemTouchHelper.END.
      */
     public void setSwipeMoveFlags(int swipeMoveFlags) {

library/src/main/java/com/chad/library/adapter/base/entity/MultiItemEntity.java

@@ -4,7 +4,5 @@
  * https://github.com/CymChad/BaseRecyclerViewAdapterHelper
  */
 public interface MultiItemEntity {
-
     int getItemType();
-
 }

library/src/main/java/com/chad/library/adapter/base/listener/OnItemChildClickListener.java

@@ -12,7 +12,6 @@
  **/
 
 public abstract class OnItemChildClickListener extends SimpleClickListener {
-
     @Override
     public void onItemClick(BaseQuickAdapter adapter, View view, int position) {
 
@@ -33,6 +32,5 @@ public void onItemChildLongClick(BaseQuickAdapter adapter, View view, int positi
 
     }
 
-    public  abstract void onSimpleItemChildClick(BaseQuickAdapter adapter, View view, int position);
-
+    public abstract void onSimpleItemChildClick(BaseQuickAdapter adapter, View view, int position);
 }

library/src/main/java/com/chad/library/adapter/base/listener/OnItemChildLongClickListener.java

@@ -11,8 +11,6 @@
  * {@link SimpleClickListener}
  **/
 public abstract class OnItemChildLongClickListener extends SimpleClickListener {
-
-
     @Override
     public void onItemClick(BaseQuickAdapter adapter, View view, int position) {
 
@@ -30,7 +28,8 @@ public void onItemChildClick(BaseQuickAdapter adapter, View view, int position)
 
     @Override
     public void onItemChildLongClick(BaseQuickAdapter adapter, View view, int position) {
-        onSimpleItemChildLongClick(adapter,view,position);
+        onSimpleItemChildLongClick(adapter, view, position);
     }
+
     public abstract void onSimpleItemChildLongClick(BaseQuickAdapter adapter, View view, int position);
 }

library/src/main/java/com/chad/library/adapter/base/listener/OnItemClickListener.java

@@ -6,18 +6,16 @@
 
 /**
  * Created by AllenCoder on 2016/8/03.
- *
- *
+ * <p>
+ * <p>
  * A convenience class to extend when you only want to OnItemClickListener for a subset
  * of all the SimpleClickListener. This implements all methods in the
  * {@link SimpleClickListener}
  */
-public abstract   class OnItemClickListener extends SimpleClickListener {
-
-
+public abstract class OnItemClickListener extends SimpleClickListener {
     @Override
     public void onItemClick(BaseQuickAdapter adapter, View view, int position) {
-        onSimpleItemClick(adapter,view,position);
+        onSimpleItemClick(adapter, view, position);
     }
 
     @Override
@@ -34,5 +32,6 @@ public void onItemChildClick(BaseQuickAdapter adapter, View view, int position)
     public void onItemChildLongClick(BaseQuickAdapter adapter, View view, int position) {
 
     }
+
     public abstract void onSimpleItemClick(BaseQuickAdapter adapter, View view, int position);
 }

library/src/main/java/com/chad/library/adapter/base/listener/OnItemDragListener.java

@@ -7,7 +7,8 @@
  */
 public interface OnItemDragListener {
     void onItemDragStart(RecyclerView.ViewHolder viewHolder, int pos);
+
     void onItemDragMoving(RecyclerView.ViewHolder source, int from, RecyclerView.ViewHolder target, int to);
-    void onItemDragEnd(RecyclerView.ViewHolder viewHolder, int pos);
 
+    void onItemDragEnd(RecyclerView.ViewHolder viewHolder, int pos);
 }

library/src/main/java/com/chad/library/adapter/base/listener/OnItemLongClickListener.java

@@ -9,18 +9,14 @@
  */
 
 public abstract class OnItemLongClickListener extends SimpleClickListener {
-
-
-
-
     @Override
     public void onItemClick(BaseQuickAdapter adapter, View view, int position) {
 
     }
 
     @Override
     public void onItemLongClick(BaseQuickAdapter adapter, View view, int position) {
-        onSimpleItemLongClick( adapter,  view,  position);
+        onSimpleItemLongClick(adapter, view, position);
     }
 
     @Override
@@ -31,5 +27,6 @@ public void onItemChildClick(BaseQuickAdapter adapter, View view, int position)
     @Override
     public void onItemChildLongClick(BaseQuickAdapter adapter, View view, int position) {
     }
+
     public abstract void onSimpleItemLongClick(BaseQuickAdapter adapter, View view, int position);
 }