diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 54cbce4..100ee10 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -16,6 +16,9 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+
+        <activity android:name=".CircleViewPagerActivity"/>
+        <activity android:name=".StandardViewPagerActivity"/>
     </application>
 
 </manifest>
diff --git a/app/src/main/java/com/zhy/magicviewpager/sample/CircleViewPagerActivity.java b/app/src/main/java/com/zhy/magicviewpager/sample/CircleViewPagerActivity.java
new file mode 100644
index 0000000..27e02cb
--- /dev/null
+++ b/app/src/main/java/com/zhy/magicviewpager/sample/CircleViewPagerActivity.java
@@ -0,0 +1,169 @@
+package com.zhy.magicviewpager.sample;
+
+import android.os.Bundle;
+import android.support.v4.view.PagerAdapter;
+import android.support.v4.view.ViewPager;
+import android.support.v7.app.AppCompatActivity;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.Toast;
+
+import com.zhy.magicviewpager.transformer.AlphaPageTransformer;
+import com.zhy.magicviewpager.transformer.NonPageTransformer;
+import com.zhy.magicviewpager.transformer.RotateDownPageTransformer;
+import com.zhy.magicviewpager.transformer.RotateUpPageTransformer;
+import com.zhy.magicviewpager.transformer.RotateYTransformer;
+import com.zhy.magicviewpager.transformer.ScaleInTransformer;
+
+public class CircleViewPagerActivity extends AppCompatActivity{
+
+    private ViewPager mViewPager;
+    private PagerAdapter mAdapter;
+
+    int[] imgRes = {R.drawable.a, R.drawable.b, R.drawable.c, R.drawable.d,
+            R.drawable.e, R.drawable.f, R.drawable.g, R.drawable.h, R.drawable.i};
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState)
+    {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_circle_viewpager);
+
+        mViewPager = (ViewPager) findViewById(R.id.id_viewpager);
+
+        mViewPager.setPageMargin(40);
+        mViewPager.setAdapter(mAdapter = new PagerAdapter()
+        {
+            @Override
+            public Object instantiateItem(ViewGroup container, int position)
+            {
+                ImageView view = new ImageView(CircleViewPagerActivity.this);
+//                ViewGroup.LayoutParams lp = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
+//                view.setLayoutParams(lp);
+//                view.setText(position + ":" + view);
+                view.setScaleType(ImageView.ScaleType.FIT_XY);
+//                view.setBackgroundColor(Color.parseColor("#44ff0000"));
+                final int realPosition = getRealPosition(position);
+                view.setImageResource(imgRes[realPosition]);
+                container.addView(view);
+//                view.setAdjustViewBounds(true);
+
+                view.setOnClickListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        Toast.makeText(CircleViewPagerActivity.this, "click position= " + realPosition, Toast.LENGTH_SHORT).show();
+                    }
+                });
+                return view;
+            }
+
+
+            @Override
+            public int getItemPosition(Object object) {
+                return POSITION_NONE;
+            }
+
+            @Override
+            public void destroyItem(ViewGroup container, int position, Object object)
+            {
+                container.removeView((View) object);
+            }
+
+            @Override
+            public int getCount()
+            {
+                return Integer.MAX_VALUE;
+            }
+
+            @Override
+            public boolean isViewFromObject(View view, Object o)
+            {
+                return view == o;
+            }
+
+            @Override
+            public void startUpdate(ViewGroup container) {
+                super.startUpdate(container);
+                ViewPager viewPager = (ViewPager) container;
+                int position = viewPager.getCurrentItem();
+                if (position == 0) {
+                    position = getFirstItemPosition();
+                } else if (position == getCount() - 1) {
+                    position = getLastItemPosition();
+                }
+                viewPager.setCurrentItem(position, false);
+
+            }
+
+            private int getRealCount() {
+                return imgRes.length;
+            }
+
+            private int getRealPosition(int position) {
+                return position % getRealCount();
+            }
+
+            private int getFirstItemPosition() {
+                return Integer.MAX_VALUE / getRealCount() / 2 * getRealCount();
+            }
+
+            private int getLastItemPosition() {
+                return Integer.MAX_VALUE / getRealCount() / 2 * getRealCount() - 1;
+            }
+        });
+
+        mViewPager.setPageTransformer(true, new AlphaPageTransformer());
+
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu)
+    {
+        String[] effects = this.getResources().getStringArray(R.array.magic_effect);
+        for (String effect : effects)
+            menu.add(effect);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item)
+    {
+        String title = item.getTitle().toString();
+        mViewPager.setAdapter(mAdapter);
+
+        if ("RotateDown".equals(title))
+        {
+            mViewPager.setPageTransformer(true, new RotateDownPageTransformer());
+        } else if ("RotateUp".equals(title))
+        {
+            mViewPager.setPageTransformer(true, new RotateUpPageTransformer());
+        } else if ("RotateY".equals(title))
+        {
+            mViewPager.setPageTransformer(true, new RotateYTransformer(45));
+        } else if ("Standard".equals(title))
+        {
+//            mViewPager.setClipChildren(false);
+            mViewPager.setPageTransformer(true, NonPageTransformer.INSTANCE);
+        } else if ("Alpha".equals(title))
+        {
+//            mViewPager.setClipChildren(false);
+            mViewPager.setPageTransformer(true, new AlphaPageTransformer());
+        } else if ("ScaleIn".equals(title))
+        {
+            mViewPager.setPageTransformer(true, new ScaleInTransformer());
+        } else if ("RotateDown and Alpha".equals(title))
+        {
+            mViewPager.setPageTransformer(true, new RotateDownPageTransformer(new AlphaPageTransformer()));
+        }else if ("RotateDown and Alpha And ScaleIn".equals(title))
+        {
+            mViewPager.setPageTransformer(true, new RotateDownPageTransformer(new AlphaPageTransformer(new ScaleInTransformer())));
+        }
+
+        setTitle(title);
+
+        return true;
+    }
+}
diff --git a/app/src/main/java/com/zhy/magicviewpager/sample/MainActivity.java b/app/src/main/java/com/zhy/magicviewpager/sample/MainActivity.java
index 6d27fc4..d8956f8 100644
--- a/app/src/main/java/com/zhy/magicviewpager/sample/MainActivity.java
+++ b/app/src/main/java/com/zhy/magicviewpager/sample/MainActivity.java
@@ -1,125 +1,26 @@
 package com.zhy.magicviewpager.sample;
 
+import android.content.Intent;
 import android.os.Bundle;
-import android.support.v4.view.PagerAdapter;
-import android.support.v4.view.ViewPager;
 import android.support.v7.app.AppCompatActivity;
-import android.view.Menu;
-import android.view.MenuItem;
 import android.view.View;
-import android.view.ViewGroup;
-import android.widget.ImageView;
 
-import com.zhy.magicviewpager.transformer.AlphaPageTransformer;
-import com.zhy.magicviewpager.transformer.NonPageTransformer;
-import com.zhy.magicviewpager.transformer.RotateDownPageTransformer;
-import com.zhy.magicviewpager.transformer.RotateUpPageTransformer;
-import com.zhy.magicviewpager.transformer.RotateYTransformer;
-import com.zhy.magicviewpager.transformer.ScaleInTransformer;
-
-public class MainActivity extends AppCompatActivity
-{
-
-    private ViewPager mViewPager;
-    private PagerAdapter mAdapter;
-
-    int[] imgRes = {R.drawable.a, R.drawable.b, R.drawable.c, R.drawable.d,
-            R.drawable.e, R.drawable.f, R.drawable.g, R.drawable.h, R.drawable.i};
+public class MainActivity extends AppCompatActivity {
 
     @Override
-    protected void onCreate(Bundle savedInstanceState)
-    {
+    protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
-
-        mViewPager = (ViewPager) findViewById(R.id.id_viewpager);
-
-        mViewPager.setPageMargin(40);
-        mViewPager.setOffscreenPageLimit(3);
-        mViewPager.setAdapter(mAdapter = new PagerAdapter()
-        {
-            @Override
-            public Object instantiateItem(ViewGroup container, int position)
-            {
-                ImageView view = new ImageView(MainActivity.this);
-//                ViewGroup.LayoutParams lp = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
-//                view.setLayoutParams(lp);
-//                view.setText(position + ":" + view);
-                view.setScaleType(ImageView.ScaleType.FIT_XY);
-//                view.setBackgroundColor(Color.parseColor("#44ff0000"));
-                view.setImageResource(imgRes[position]);
-                container.addView(view);
-//                view.setAdjustViewBounds(true);
-                return view;
-            }
-
-            @Override
-            public void destroyItem(ViewGroup container, int position, Object object)
-            {
-                container.removeView((View) object);
-            }
-
-            @Override
-            public int getCount()
-            {
-                return imgRes.length;
-            }
-
-            @Override
-            public boolean isViewFromObject(View view, Object o)
-            {
-                return view == o;
-            }
-        });
-        mViewPager.setPageTransformer(true, new AlphaPageTransformer());
-
     }
 
-    @Override
-    public boolean onCreateOptionsMenu(Menu menu)
-    {
-        String[] effects = this.getResources().getStringArray(R.array.magic_effect);
-        for (String effect : effects)
-            menu.add(effect);
-        return true;
+    public void onStandardViewPager(View view) {
+        Intent intent = new Intent(MainActivity.this, StandardViewPagerActivity.class);
+        startActivity(intent);
     }
 
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item)
-    {
-        String title = item.getTitle().toString();
-        mViewPager.setAdapter(mAdapter);
-
-        if ("RotateDown".equals(title))
-        {
-            mViewPager.setPageTransformer(true, new RotateDownPageTransformer());
-        } else if ("RotateUp".equals(title))
-        {
-            mViewPager.setPageTransformer(true, new RotateUpPageTransformer());
-        } else if ("RotateY".equals(title))
-        {
-            mViewPager.setPageTransformer(true, new RotateYTransformer(45));
-        } else if ("Standard".equals(title))
-        {
-//            mViewPager.setClipChildren(false);
-            mViewPager.setPageTransformer(true, NonPageTransformer.INSTANCE);
-        } else if ("Alpha".equals(title))
-        {
-//            mViewPager.setClipChildren(false);
-            mViewPager.setPageTransformer(true, new AlphaPageTransformer());
-        } else if ("ScaleIn".equals(title))
-        {
-            mViewPager.setPageTransformer(true, new ScaleInTransformer());
-        } else if ("RotateDown and Alpha".equals(title))
-        {
-            mViewPager.setPageTransformer(true, new RotateDownPageTransformer(new AlphaPageTransformer()));
-        }else if ("RotateDown and Alpha And ScaleIn".equals(title))
-        {
-            mViewPager.setPageTransformer(true, new RotateDownPageTransformer(new AlphaPageTransformer(new ScaleInTransformer())));
-        }
-
-        setTitle(title);
-
-        return true;
+    public void onCircleViewPager(View view) {
+        Intent intent = new Intent(MainActivity.this, CircleViewPagerActivity.class);
+        startActivity(intent);
     }
+
 }
diff --git a/app/src/main/java/com/zhy/magicviewpager/sample/StandardViewPagerActivity.java b/app/src/main/java/com/zhy/magicviewpager/sample/StandardViewPagerActivity.java
new file mode 100644
index 0000000..6e16c4c
--- /dev/null
+++ b/app/src/main/java/com/zhy/magicviewpager/sample/StandardViewPagerActivity.java
@@ -0,0 +1,123 @@
+package com.zhy.magicviewpager.sample;
+
+import android.os.Bundle;
+import android.support.v4.view.PagerAdapter;
+import android.support.v4.view.ViewPager;
+import android.support.v7.app.AppCompatActivity;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+
+import com.zhy.magicviewpager.transformer.AlphaPageTransformer;
+import com.zhy.magicviewpager.transformer.NonPageTransformer;
+import com.zhy.magicviewpager.transformer.RotateDownPageTransformer;
+import com.zhy.magicviewpager.transformer.RotateUpPageTransformer;
+import com.zhy.magicviewpager.transformer.RotateYTransformer;
+import com.zhy.magicviewpager.transformer.ScaleInTransformer;
+
+public class StandardViewPagerActivity extends AppCompatActivity{
+    private ViewPager mViewPager;
+    private PagerAdapter mAdapter;
+
+    int[] imgRes = {R.drawable.a, R.drawable.b, R.drawable.c, R.drawable.d,
+            R.drawable.e, R.drawable.f, R.drawable.g, R.drawable.h, R.drawable.i};
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState)
+    {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_standard_viewpager);
+
+        mViewPager = (ViewPager) findViewById(R.id.id_viewpager);
+
+        mViewPager.setPageMargin(40);
+        mViewPager.setOffscreenPageLimit(3);
+        mViewPager.setAdapter(mAdapter = new PagerAdapter()
+        {
+            @Override
+            public Object instantiateItem(ViewGroup container, int position)
+            {
+                ImageView view = new ImageView(StandardViewPagerActivity.this);
+//                ViewGroup.LayoutParams lp = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
+//                view.setLayoutParams(lp);
+//                view.setText(position + ":" + view);
+                view.setScaleType(ImageView.ScaleType.FIT_XY);
+//                view.setBackgroundColor(Color.parseColor("#44ff0000"));
+                view.setImageResource(imgRes[position]);
+                container.addView(view);
+//                view.setAdjustViewBounds(true);
+                return view;
+            }
+
+            @Override
+            public void destroyItem(ViewGroup container, int position, Object object)
+            {
+                container.removeView((View) object);
+            }
+
+            @Override
+            public int getCount()
+            {
+                return imgRes.length;
+            }
+
+            @Override
+            public boolean isViewFromObject(View view, Object o)
+            {
+                return view == o;
+            }
+        });
+        mViewPager.setPageTransformer(true, new AlphaPageTransformer());
+
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu)
+    {
+        String[] effects = this.getResources().getStringArray(R.array.magic_effect);
+        for (String effect : effects)
+            menu.add(effect);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item)
+    {
+        String title = item.getTitle().toString();
+        mViewPager.setAdapter(mAdapter);
+
+        if ("RotateDown".equals(title))
+        {
+            mViewPager.setPageTransformer(true, new RotateDownPageTransformer());
+        } else if ("RotateUp".equals(title))
+        {
+            mViewPager.setPageTransformer(true, new RotateUpPageTransformer());
+        } else if ("RotateY".equals(title))
+        {
+            mViewPager.setPageTransformer(true, new RotateYTransformer(45));
+        } else if ("Standard".equals(title))
+        {
+//            mViewPager.setClipChildren(false);
+            mViewPager.setPageTransformer(true, NonPageTransformer.INSTANCE);
+        } else if ("Alpha".equals(title))
+        {
+//            mViewPager.setClipChildren(false);
+            mViewPager.setPageTransformer(true, new AlphaPageTransformer());
+        } else if ("ScaleIn".equals(title))
+        {
+            mViewPager.setPageTransformer(true, new ScaleInTransformer());
+        } else if ("RotateDown and Alpha".equals(title))
+        {
+            mViewPager.setPageTransformer(true, new RotateDownPageTransformer(new AlphaPageTransformer()));
+        }else if ("RotateDown and Alpha And ScaleIn".equals(title))
+        {
+            mViewPager.setPageTransformer(true, new RotateDownPageTransformer(new AlphaPageTransformer(new ScaleInTransformer())));
+        }
+
+        setTitle(title);
+
+        return true;
+    }
+}
diff --git a/app/src/main/res/layout/activity_circle_viewpager.xml b/app/src/main/res/layout/activity_circle_viewpager.xml
new file mode 100644
index 0000000..94dc63f
--- /dev/null
+++ b/app/src/main/res/layout/activity_circle_viewpager.xml
@@ -0,0 +1,22 @@
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="160dp"
+        android:layout_centerInParent="true"
+        android:background="#aadc71ff">
+
+        <android.support.v4.view.ViewPager
+            android:id="@+id/id_viewpager"
+            android:layout_width="match_parent"
+            android:layout_height="120dp"
+            android:layout_gravity="center"
+            android:clipToPadding="false"
+            android:paddingLeft="60dp"
+            android:paddingRight="60dp"/>
+
+    </FrameLayout>
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 7ee27ed..5e1cecd 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -6,24 +6,25 @@
     android:layout_height="match_parent"
     tools:context=".MainActivity">
 
-    <FrameLayout
-        android:layout_width="match_parent"
-        android:layout_height="160dp"
-        android:clipChildren="false"
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
         android:layout_centerInParent="true"
-        android:background="#aadc71ff"
-        >
-        <android.support.v4.view.ViewPager
-            android:id="@+id/id_viewpager"
-            android:layout_width="match_parent"
-            android:layout_marginLeft="60dp"
-            android:layout_marginRight="60dp"
-            android:layout_height="120dp"
-            android:clipChildren="false"
-            android:layout_gravity="center"
-            >
-        </android.support.v4.view.ViewPager>
+        android:orientation="vertical">
 
-    </FrameLayout>
+        <Button
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textAllCaps="false"
+            android:text="Standard ViewPager"
+            android:onClick="onStandardViewPager"/>
+
+        <Button
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textAllCaps="false"
+            android:text="Circle ViewPager"
+            android:onClick="onCircleViewPager"/>
+    </LinearLayout>
 
 </RelativeLayout>
diff --git a/app/src/main/res/layout/activity_standard_viewpager.xml b/app/src/main/res/layout/activity_standard_viewpager.xml
new file mode 100644
index 0000000..650478f
--- /dev/null
+++ b/app/src/main/res/layout/activity_standard_viewpager.xml
@@ -0,0 +1,25 @@
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="160dp"
+        android:layout_centerInParent="true"
+        android:background="#aadc71ff"
+        android:clipChildren="false">
+
+        <android.support.v4.view.ViewPager
+            android:id="@+id/id_viewpager"
+            android:layout_width="match_parent"
+            android:layout_height="120dp"
+            android:layout_gravity="center"
+            android:layout_marginLeft="60dp"
+            android:layout_marginRight="60dp"
+            android:clipChildren="false" />
+
+    </FrameLayout>
+
+</RelativeLayout>