http://blog.csdn.net/harvic880925/article/details/38487149

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1. package com.example.testviewpage_2;  
2. /** 
3.  * @author  harvic 
4.  * @date 2014.8.11 
5.  */  
6. import java.util.ArrayList;  
7. import java.util.List;  
8. import android.app.Activity;  
9. import android.os.Bundle;  
10. import android.support.v4.view.PagerAdapter;  
11. import android.support.v4.view.ViewPager;  
12. import android.view.LayoutInflater;  
13. import android.view.View;  
14. import android.view.ViewGroup;  
15.   
16. public class MainActivity extends Activity {  
17.   
18.     private View view1, view2, view3;  
19.     private List<View> viewList;// view数组  
20.     private ViewPager viewPager; // 对应的viewPager  
21.       
22.     @Override  
23.     protected void onCreate(Bundle savedInstanceState) {  
24.         super.onCreate(savedInstanceState);  
25.         setContentView(R.layout.activity_main);  
26.         viewPager = (ViewPager) findViewById(R.id.viewpager);  
27.         LayoutInflater inflater = getLayoutInflater();  
28.         view1 = inflater.inflate(R.layout.layout1, null);  
29.         view2 = inflater.inflate(R.layout.layout2, null);  
30.         view3 = inflater.inflate(R.layout.layout3, null);  
31.   
32.         viewList = new ArrayList<View>();// 将要分页显示的View装入数组中  
33.         viewList.add(view1);  
34.         viewList.add(view2);  
35.         viewList.add(view3);  
36.   
37.         PagerAdapter pagerAdapter = new PagerAdapter() {  
38.   
39.             @Override  
40.             public boolean isViewFromObject(View arg0, Object arg1) {  
41.                 // TODO Auto-generated method stub  
42.                 //根据传来的key，找到view,判断与传来的参数View arg0是不是同一个视图  
43.                 return arg0 == viewList.get((int)Integer.parseInt(arg1.toString()));  
44.             }  
45.   
46.             @Override  
47.             public int getCount() {  
48.                 // TODO Auto-generated method stub  
49.                 return viewList.size();  
50.             }  
51.   
52.             @Override  
53.             public void destroyItem(ViewGroup container, int position,  
54.                     Object object) {  
55.                 // TODO Auto-generated method stub  
56.                 container.removeView(viewList.get(position));  
57.             }  
58.   
59.             @Override  
60.             public Object instantiateItem(ViewGroup container, int position) {  
61.                 // TODO Auto-generated method stub  
62.                 container.addView(viewList.get(position));  
63.   
64.                 //把当前新增视图的位置（position）作为Key传过去  
65.                 return position;  
66.             }  
67.         };  
68.   
69.         viewPager.setAdapter(pagerAdapter);  
70.   
71.     }  
72.   
73. }