Android利用ViewPager实现图片可以左右循环滑动效果附代码下载

package com.example.viewpagerdemo; 
import android.app.Activity; 
import android.os.Bundle; 
import android.support.v4.view.PagerAdapter; 
import android.support.v4.view.ViewPager; 
import android.support.v4.view.ViewPager.OnPageChangeListener; 
import android.view.View; 
import android.view.ViewGroup; 
import android.view.ViewGroup.LayoutParams; 
import android.widget.ImageView; 
import android.widget.LinearLayout; 
public class TwoActivity extends Activity implements OnPageChangeListener{ 
 /** 
 * ViewPager 
 */ 
 private ViewPager viewPager; 
 /** 
 * 装点点的ImageView数组 
 */ 
 private ImageView[] tips; 
 /** 
 * 装ImageView数组 
 */ 
 private ImageView[] mImageViews; 
 /** 
 * 图片资源id 
 */ 
 private int[] imgIdArray ; 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
 super.onCreate(savedInstanceState); 
 setContentView(R.layout.activity_main); 
 ViewGroup group = (ViewGroup)findViewById(R.id.viewGroup); 
 viewPager = (ViewPager) findViewById(R.id.viewPager); 
 //载入图片资源ID 
 imgIdArray = new int[]{R.drawable.item01, R.drawable.item02, R.drawable.item03, R.drawable.item04, 
 R.drawable.item05,R.drawable.item06, R.drawable.item07, R.drawable.item08}; 
 //将点点加入到ViewGroup中 
 tips = new ImageView[imgIdArray.length]; 
 for(int i=0; i

 @Override 
 public void destroyItem(View container, int position, Object object) { 
// ((ViewPager)container).removeView(mImageViews[position % mImageViews.length]); 
 } 
instantiateItem(View container, int position)增加异常扑捉
[java] view plaincopy在CODE上查看代码片派生到我的代码片
@Override 
 public Object instantiateItem(View container, int position) { 
 try { 
 ((ViewPager)container).addView(mImageViews[position % mImageViews.length], 0); 
 }catch(Exception e){ 
 //handler something 
 } 
 return mImageViews[position % mImageViews.length]; 
 }