diff --git a/ByRecyclerview/src/main/java/me/jingbin/library/ByRecyclerView.java b/ByRecyclerview/src/main/java/me/jingbin/library/ByRecyclerView.java
index 72b17e9..06106e6 100644
--- a/ByRecyclerview/src/main/java/me/jingbin/library/ByRecyclerView.java
+++ b/ByRecyclerview/src/main/java/me/jingbin/library/ByRecyclerView.java
@@ -202,7 +202,9 @@ public void onClick(View v) {
                     postDelayed(new Runnable() {
                         @Override
                         public void run() {
-                            mLoadMoreListener.onLoadMore();
+                            if (mLoadMoreListener != null) {
+                                mLoadMoreListener.onLoadMore();
+                            }
                         }
                     }, mLoadMoreDelayMillis);
                 }
@@ -229,7 +231,9 @@ public void setRefreshing(boolean refreshing) {
                 postDelayed(new Runnable() {
                     @Override
                     public void run() {
-                        mRefreshListener.onRefresh();
+                        if (mRefreshListener != null) {
+                            mRefreshListener.onRefresh();
+                        }
                     }
                 }, 300 + mRefreshDelayMillis);
             }
@@ -368,7 +372,9 @@ && isScrollLoad()
                     postDelayed(new Runnable() {
                         @Override
                         public void run() {
-                            mLoadMoreListener.onLoadMore();
+                            if (mLoadMoreListener != null) {
+                                mLoadMoreListener.onLoadMore();
+                            }
                         }
                     }, mLoadMoreDelayMillis);
                 }
@@ -455,7 +461,9 @@ && isOnTop()
                         postDelayed(new Runnable() {
                             @Override
                             public void run() {
-                                mRefreshListener.onRefresh();
+                                if (mRefreshListener != null) {
+                                    mRefreshListener.onRefresh();
+                                }
                             }
                         }, 300 + mRefreshDelayMillis);
                     }
@@ -813,7 +821,9 @@ private void autoLoadMore(int position) {
             postDelayed(new Runnable() {
                 @Override
                 public void run() {
-                    mLoadMoreListener.onLoadMore();
+                    if (mLoadMoreListener != null) {
+                        mLoadMoreListener.onLoadMore();
+                    }
                 }
             }, mLoadMoreDelayMillis);
         }
@@ -1423,6 +1433,12 @@ public void destroy() {
         mRefreshEnabled = false;
         mPreLoadNumber = 1;
         mLoadMoreEnabledStatus = 0;
+        mRefreshListener = null;
+        mLoadMoreListener = null;
+        onItemClickListener = null;
+        onItemLongClickListener = null;
+        mOnItemChildClickListener = null;
+        mOnItemChildLongClickListener = null;
         if (mHeaderViews != null) {
             mHeaderViews.clear();
         }
diff --git a/ByRecyclerview/src/main/java/me/jingbin/library/adapter/BaseByRecyclerViewAdapter.java b/ByRecyclerview/src/main/java/me/jingbin/library/adapter/BaseByRecyclerViewAdapter.java
index 97c31e7..cf45e86 100644
--- a/ByRecyclerview/src/main/java/me/jingbin/library/adapter/BaseByRecyclerViewAdapter.java
+++ b/ByRecyclerview/src/main/java/me/jingbin/library/adapter/BaseByRecyclerViewAdapter.java
@@ -73,7 +73,7 @@ public List<T> getData() {
     }
 
     public T getItemData(int position) {
-        if (mData != null && mData.size() > 0 && position < mData.size()) {
+        if (mData != null && mData.size() > 0 && position >= 0 && position < mData.size()) {
             return mData.get(position);
         }
         return null;