android 解决ViewPager加载大量图片内存溢出问题

package com.example.test;
 
import java.util.ArrayList;
 
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.widget.ImageView;
 
public class TestActivity extends Activity{
 
 private ViewPager mPager;
 private ArrayList<View> views;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 views=new ArrayList<View>();
 views.add(new ImageView(this));
 views.add(new ImageView(this));
 views.add(new ImageView(this));
 views.add(new ImageView(this));
 views.add(new ImageView(this));
 views.add(new ImageView(this));
 views.add(new ImageView(this));
 views.add(new ImageView(this));
  
 mPager=new ViewPager(this);
 mPager.setAdapter(new MyPagerAdapter());
 setContentView(mPager);
 }
 
 class MyPagerAdapter extends PagerAdapter{
 
 @Override
 public void destroyItem(View container, int position, Object object) {
  //在此次回收图片
  //........回收代码
  
  //移除页面
  ((ViewPager)container).removeView(views.get(position));
 }
 
 @Override
 public Object instantiateItem(View container, int position) {
  // 在此次加载图片
  //......加载图片代码
  
  //加载页面
  ((ViewPager)container).addView(views.get(position), 0);
  return views.get(position);
 }
 
 @Override
 public int getCount() {
  // TODO Auto-generated method stub
  return views.size();
 }
 
 @Override
 public boolean isViewFromObject(View arg0, Object arg1) {
  // TODO Auto-generated method stub
  return false;
 }
  
 }
}