diff --git a/banner/src/main/java/com/youth/banner/adapter/BannerAdapter.java b/banner/src/main/java/com/youth/banner/adapter/BannerAdapter.java
index b8d1e7c..5d05024 100644
--- a/banner/src/main/java/com/youth/banner/adapter/BannerAdapter.java
+++ b/banner/src/main/java/com/youth/banner/adapter/BannerAdapter.java
@@ -1,5 +1,6 @@
 package com.youth.banner.adapter;
 
+import android.annotation.SuppressLint;
 import android.view.ViewGroup;
 
 import androidx.annotation.NonNull;
@@ -14,9 +15,6 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import androidx.annotation.NonNull;
-import androidx.recyclerview.widget.RecyclerView;
-
 
 public abstract class BannerAdapter<T, VH extends RecyclerView.ViewHolder> extends RecyclerView.Adapter<VH> implements IViewHolder<T, VH> {
     protected List<T> mDatas = new ArrayList<>();
@@ -33,11 +31,33 @@ public BannerAdapter(List<T> datas) {
      *
      * @param datas
      */
+    @SuppressLint("NotifyDataSetChanged")
     public void setDatas(List<T> datas) {
-        if (datas == null) {
-            datas = new ArrayList<>();
+        if (BannerConfig.isIsUseBanerdata()) {
+            setList(datas);
+        } else {
+            if (datas == null) {
+                datas = new ArrayList<>();
+            }
+            mDatas = datas;
+            notifyDataSetChanged();
+        }
+
+    }
+
+    /***
+     * 设置数据
+     */
+    @SuppressLint("NotifyDataSetChanged")
+    public void setList(List<T> datas) {
+        if (mDatas == null) {
+            mDatas = new ArrayList<>();
+        } else {
+            mDatas.clear();
+        }
+        if (mDatas != null && datas != null) {
+            mDatas.addAll(datas);
         }
-        mDatas = datas;
         notifyDataSetChanged();
     }
 
@@ -48,7 +68,14 @@ public void setDatas(List<T> datas) {
      * @return
      */
     public T getData(int position) {
-        return mDatas.get(position);
+        if (mDatas == null) {
+            return null;
+        } else {
+            if (mDatas.size() > position&&position!=-1) {
+                return mDatas.get(position);
+            }
+        }
+        return null;
     }
 
     /**
@@ -58,7 +85,16 @@ public T getData(int position) {
      * @return
      */
     public T getRealData(int position) {
-        return mDatas.get(getRealPosition(position));
+
+        if (mDatas == null) {
+            return null;
+        } else {
+            int realPosition = getRealPosition(position);
+            if (mDatas.size() > realPosition&&position!=-1) {
+                return mDatas.get(realPosition);
+            }
+        }
+        return null;
     }
 
 
diff --git a/banner/src/main/java/com/youth/banner/config/BannerConfig.java b/banner/src/main/java/com/youth/banner/config/BannerConfig.java
index faa1f6f..aee4f6d 100644
--- a/banner/src/main/java/com/youth/banner/config/BannerConfig.java
+++ b/banner/src/main/java/com/youth/banner/config/BannerConfig.java
@@ -40,4 +40,13 @@ public class BannerConfig {
     public static final int INDICATOR_HEIGHT = (int) BannerUtils.dp2px(3);
     public static final int INDICATOR_RADIUS = (int) BannerUtils.dp2px(3);
 
+    public static  boolean IS_USE_BANERDATA=false;
+
+    public static boolean isIsUseBanerdata() {
+        return IS_USE_BANERDATA;
+    }
+
+    public static void setIsUseBanerdata(boolean isUseBanerdata) {
+        IS_USE_BANERDATA = isUseBanerdata;
+    }
 }