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   源码介绍

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package com.example.viewpager;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import android.app.Activity;
import android.app.LocalActivityManager;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.Parcelable;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.Window;
import android.widget.ImageView;
import android.widget.LinearLayout;

public class MainActivity extends Activity {
	private ViewPager viewPager;
	private List<View> list;
	private ImageView imageView;
	private ImageView[] imageViews;
	private int num = 300;
	private LocalActivityManager manager;
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		
		this.requestWindowFeature(Window.FEATURE_NO_TITLE);
		setContentView(R.layout.main_activity);
		
		manager = new LocalActivityManager(this , true);
		manager.dispatchCreate(savedInstanceState);
		list = new ArrayList<View>();
		Intent intent = new Intent(MainActivity.this,ImageActivity1.class);
		list.add(getView("ImageActivity1", intent));
		
		intent = new Intent(MainActivity.this,ImageActivity2.class);
		getView("ImageActivity2", intent);
		list.add(getView("ImageActivity2", intent));
		
		intent = new Intent(MainActivity.this,ImageActivity3.class);
		getView("ImageActivity3", intent);
		list.add(getView("ImageActivity3", intent));
		
		intent = new Intent(MainActivity.this,ImageActivity4.class);
		getView("ImageActivity4", intent);
		list.add(getView("ImageActivity4", intent));
		
		intent = new Intent(MainActivity.this,ImageActivity5.class);
		getView("ImageActivity5", intent);
		list.add(getView("ImageActivity5", intent));
		

		imageViews = new ImageView[list.size()];

		LinearLayout linearLayout = (LinearLayout) findViewById(R.id.viewGroup);

		viewPager = (ViewPager)findViewById(R.id.viewPager);

		for (int i = 0; i < list.size(); i  ) {
			imageViews[i] = new ImageView(this);
			imageViews[i].setLayoutParams(new LayoutParams(12,12));
			if (i == 0) {
				imageViews[i].setBackgroundResource(R.drawable.white);
			} else {
				imageViews[i].setBackgroundResource(R.drawable.black);
			}
			linearLayout.addView(imageViews[i]);
		}

		

		viewPager.setAdapter(new MyAdapter());
		viewPager.setOnPageChangeListener(new MyListener());
		viewPager.setCurrentItem(300);
		mHandler.postDelayed(mRunnable, 2000);
	}
	
	private Handler mHandler =  new Handler();  
	private Runnable mRunnable = new Runnable() {   
		public void run() {  
			//姣忛殧澶氶暱鏃堕棿鎵ц涓�   
			//mHandler.postDelayed(mRunnable, 1000*PhoneConstans.TIMEVALUE);
			mHandler.postDelayed(mRunnable, 1000*2);
			num  ;
			viewHandler.sendEmptyMessage(num);
		}   

	};  
	
	private View getView(String id,Intent intent){
		return manager.startActivity(id, intent).getDecorView();
	}


	@Override
	public boolean onKeyDown(int keyCode, KeyEvent event) {
		switch (keyCode) {
		case KeyEvent.KEYCODE_BACK:
			this.finish();
			mHandler.removeCallbacks(mRunnable);
		default:
			break;
		}
		
		return super.onKeyDown(keyCode, event);
	}

	private final Handler viewHandler = new Handler() {

		@Override
		public void handleMessage(Message msg) {
			viewPager.setCurrentItem(msg.what);
			super.handleMessage(msg);
		}

	};

	class MyAdapter extends PagerAdapter {


		@Override
		public int getCount() {
			return Integer.MAX_VALUE;
		}

		@Override
		public boolean isViewFromObject(View arg0, Object arg1) {
			return arg0 == arg1;
		}

		@Override
		public int getItemPosition(Object object) {
			// TODO Auto-generated method stub
			return super.getItemPosition(object);
		}

		@Override
		public void destroyItem(View arg0, int arg1, Object arg2) {
			// TODO Auto-generated method stub
			((ViewPager) arg0).removeView(list.get(arg1%list.size()));
		}

		@Override
		public Object instantiateItem(View arg0, int arg1) {
			// TODO Auto-generated method stub
			try{
				//((ViewPager) arg0).addView(list.get(arg1),0);
				((ViewPager) arg0).addView((View) list.get(arg1%list.size()),0);
			}catch (Exception e) {
				// TODO: handle exception
			}

			return list.get(arg1%list.size());

		}

		@Override
		public void restoreState(Parcelable arg0, ClassLoader arg1) {
			// TODO Auto-generated method stub

		}

		@Override
		public Parcelable saveState() {
			// TODO Auto-generated method stub
			return null;
		}

		@Override
		public void startUpdate(View arg0) {
			// TODO Auto-generated method stub

		}

		@Override
		public void finishUpdate(View arg0) {
			// TODO Auto-generated method stub

		}
	}


	class MyListener implements OnPageChangeListener {

		//褰撴粦鍔ㄧ姸鎬佹敼鍙樻椂璋冪敤  
		@Override
		public void onPageScrollStateChanged(int arg0) {
			// TODO Auto-generated method stub
			//arg0=arg0%list.size();

		}

		//褰撳綋鍓嶉〉闈㈣婊戝姩鏃惰皟鐢� 
		@Override
		public void onPageScrolled(int arg0, float arg1, int arg2) {
			// TODO Auto-generated method stub

		}

		//褰撴柊鐨勯〉闈㈣閫変腑鏃惰皟鐢� 
		@Override
		public void onPageSelected(int arg0) {
			num = arg0;
			arg0=arg0%list.size();
			for (int i = 0; i < imageViews.length; i  ) {
				imageViews[arg0].setBackgroundResource(R.drawable.white);
				if (arg0 != i) {
					imageViews[i].setBackgroundResource(R.drawable.black);
				} 
			}

			System.out.println( "褰撳墠鏄" arg0);
		}

	}
}