ViewPager实现自动翻页功能 --转载出处找不到了，根据自己的理解写个随笔方便以后的记忆以及代码的共享，感谢给我启发的那位高手--第一次写博客哈

xml文件 textview 用于显示图片的标题 viewpager 用于实现翻页效果

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center" >

        <TextView
            android:id="@+id/title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="#123456"
            android:textIsSelectable="true"
            android:textSize="18sp" />
    </LinearLayout>

    <android.support.v4.view.ViewPager
        android:id="@+id/vp"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" >
    </android.support.v4.view.ViewPager>

</LinearLayout>

代码块

 package com.xiang;

 import java.util.ArrayList;

 import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.TimeUnit;

 import android.os.Bundle;
 import android.os.Handler;
 import android.app.Activity;
 import android.support.v4.view.PagerAdapter;
 import android.support.v4.view.ViewPager;
 import android.support.v4.view.ViewPager.OnPageChangeListener;
 import android.view.Menu;
 import android.view.View;
 import android.widget.ImageView;
 import android.widget.TextView;

 public class AutoScrollActivity extends Activity {
     private ViewPager vp;
     private int imagsID[]={R.drawable.a,R.drawable.b,R.drawable.c,R.drawable.d};
     private String titles[]={"图片一","图片二","图片三","图片四"};
     private ArrayList<ImageView> images;
     private TextView title;
     private ViewPagerAdapter adapter;
     private int currentPosition=0;//当前页面位置
     private ScheduledExecutorService executor;
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_auto_scroll);
         init();
     }

     private void init() {
         images=new ArrayList<ImageView>();
         for(int i=0;i<imagsID.length;i++)
         {
             ImageView imgview=new ImageView(this);
             imgview.setBackgroundResource(imagsID[i]);
             images.add(imgview);
         }
         title=(TextView)findViewById(R.id.title);
         title.setText(titles[0]);//默认显示第一张图片
         vp=(ViewPager)findViewById(R.id.vp);
         adapter=new ViewPagerAdapter();
         vp.setAdapter(adapter);
         vp.setOnPageChangeListener(listener);
     }
     OnPageChangeListener listener=new OnPageChangeListener() {

         @Override
         public void onPageSelected(int arg0) {
             // TODO Auto-generated method stub
             title.setText(titles[arg0]);
             currentPosition=arg0;
         }

         @Override
         public void onPageScrolled(int arg0, float arg1, int arg2) {
             // TODO Auto-generated method stub

         }

         @Override
         public void onPageScrollStateChanged(int arg0) {
             // TODO Auto-generated method stub

         }
     };
     class ViewPagerAdapter extends PagerAdapter
     {

         @Override
         public int getCount() {
             // TODO Auto-generated method stub
             return images.size();
         }

         @Override
         public boolean isViewFromObject(View arg0, Object arg1) {
             // TODO Auto-generated method stub
             return arg0==arg1;//判断两次图片是否一样
         }
         @Override
         public Object instantiateItem(View container, int position) {
             // TODO Auto-generated method stub
             ViewPager vp=(ViewPager) container;
             vp.addView(images.get(position));
             return images.get(position);
         }
         @Override
         public void destroyItem(View container, int position, Object object) {
             // TODO Auto-generated method stub
             ViewPager vp=(ViewPager) container;
             vp.removeView(images.get(position));

         }

     }
     @Override
     protected void onStart() {
         // TODO Auto-generated method stub
         /*
          * 第一个参数：要自动执行的方法（任务）
          * 第二个参数：延迟几秒启动
          * 第三个参数：之后每个几秒 执行第一个参数的方法
          * 第四个参数：时间单位 时分秒
          */
         super.onStart();
         executor=Executors.newSingleThreadScheduledExecutor();
         executor.scheduleAtFixedRate(new ViewPagerTask(), 2, 2, TimeUnit.SECONDS);

     }
     class ViewPagerTask implements Runnable
     {

         @Override
         public void run() {
             // TODO Auto-generated method stub
             currentPosition=(currentPosition+1)%images.size();
             handler.obtainMessage().sendToTarget();//获取当前消息 发送给handler
         }

     }
     private Handler handler=new Handler()
     {
         public void handleMessage(android.os.Message msg) {

             vp.setCurrentItem(currentPosition);
         };
     };
     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
         // Inflate the menu; this adds items to the action bar if it is present.
         getMenuInflater().inflate(R.menu.auto_scroll, menu);
         return true;
     }

 }

实现效果：图片每隔两秒自动翻页，同时更改图片的标题，到最后一面又返回到第一页显示。2013-10-17