diff --git a/app/src/main/java/com/github/wanglu1209/banner/demo/MainActivity.java b/app/src/main/java/com/github/wanglu1209/banner/demo/MainActivity.java
index c6036bb..66195b0 100644
--- a/app/src/main/java/com/github/wanglu1209/banner/demo/MainActivity.java
+++ b/app/src/main/java/com/github/wanglu1209/banner/demo/MainActivity.java
@@ -36,16 +36,16 @@ protected void onCreate(Bundle savedInstanceState) {
          * 最后需要调用开始轮播
          * 个人建议在onPause()/onDestroy()方法中来停止 -- stopAutoPlay()
          */
-        banner.setDot(R.drawable.no_selected_dot, R.drawable.selected_dot).
-            setDotGravity(Banner.CENTER).
-            setAdapter(ad).
-            setOnItemClickListener(new BannerPagerAdapter.onItemClickListener() {
-                @Override
-                public void onClick(int position) {
-                    Toast.makeText(MainActivity.this, "" + position, Toast.LENGTH_SHORT).show();
-                }
-            }).
-            startAutoPlay();
+        banner.setDotGravity(Banner.CENTER).
+                setDot(R.drawable.no_selected_dot, R.drawable.selected_dot).
+                setAdapter(ad).
+                setOnItemClickListener(new BannerPagerAdapter.onItemClickListener() {
+                    @Override
+                    public void onClick(int position) {
+                        Toast.makeText(MainActivity.this, "" + position, Toast.LENGTH_SHORT).show();
+                    }
+                }).
+                startAutoPlay();
 
     }
 }
diff --git a/bannerlibrary/src/main/java/com/github/wanglu1209/bannerlibrary/Banner.java b/bannerlibrary/src/main/java/com/github/wanglu1209/bannerlibrary/Banner.java
index 98292f3..fc71ea3 100644
--- a/bannerlibrary/src/main/java/com/github/wanglu1209/bannerlibrary/Banner.java
+++ b/bannerlibrary/src/main/java/com/github/wanglu1209/bannerlibrary/Banner.java
@@ -132,6 +132,45 @@ public Banner setAdapter(BannerPagerAdapter adapter) {
         mPager.setAdapter(mAdapter);
         mPager.setCurrentItem(mAdapter.size);
 
+
+        LinearLayout.LayoutParams dotParams =
+                new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
+                        ViewGroup.LayoutParams.WRAP_CONTENT);
+        /**
+         * 未选中小圆点的间距
+         */
+        dotParams.rightMargin = 12;
+
+        /**
+         * 创建未选中的小圆点
+         */
+        for (int i = 0; i < mAdapter.size; i++) {
+            ImageView iv = new ImageView(mContext);
+            iv.setImageDrawable(mContext.getResources().getDrawable(mDot[0]));
+            iv.setLayoutParams(dotParams);
+            mDotGroup.addView(iv);
+        }
+
+
+        /**
+         * 添加到任务栈,当前所有任务完事之后添加已经选中的那个小圆点
+         */
+        post(new Runnable() {
+            @Override
+            public void run() {
+
+                ImageView iv = new ImageView(mContext);
+                iv.setImageDrawable(mContext.getResources().getDrawable(mDot[1]));
+                FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
+                /**
+                 * 设置选中小圆点的左边距
+                 */
+                params.leftMargin = (int) mDotGroup.getChildAt(0).getX();
+                params.gravity = Gravity.BOTTOM;
+                mFrameLayout.addView(iv, params);
+                mSelectedDot = mFrameLayout.getChildAt(1);
+            }
+        });
         return this;
     }
 
@@ -157,42 +196,7 @@ public Banner setTime(int time) {
     public Banner setDot(int... dots) {
         mDot[0] = dots[0];
         mDot[1] = dots[1];
-        /**
-         * 添加到任务栈,当前所有任务完事之后添加已经选中的那个小圆点
-         */
-        post(new Runnable() {
-            @Override
-            public void run() {
-
-                LinearLayout.LayoutParams dotParams =
-                        new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
-                                ViewGroup.LayoutParams.WRAP_CONTENT);
-                /**
-                 * 未选中小圆点的间距
-                 */
-                dotParams.rightMargin = 12;
-                /**
-                 * 创建未选中的小圆点
-                 */
-                for (int i = 0; i < mAdapter.size; i++) {
-                    ImageView iv = new ImageView(mContext);
-                    iv.setImageDrawable(mContext.getResources().getDrawable(mDot[0]));
-                    iv.setLayoutParams(dotParams);
-                    mDotGroup.addView(iv);
-                }
 
-                ImageView iv = new ImageView(mContext);
-                iv.setImageDrawable(mContext.getResources().getDrawable(mDot[1]));
-                FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
-                /**
-                 * 设置选中小圆点的左边距
-                 */
-                params.leftMargin = (int) mDotGroup.getChildAt(0).getX();
-                params.gravity = Gravity.BOTTOM;
-                mFrameLayout.addView(iv, params);
-                mSelectedDot = mFrameLayout.getChildAt(1);
-            }
-        });
         return this;
     }