package fry;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;

import com.example.viewPager.R;

import android.app.Activity;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.ImageView;
import android.widget.LinearLayout;

public class Activity01 extends Activity implements OnPageChangeListener,OnClickListener{
 private ViewPager viewPager;
 private List views;//用来存放放进ViewPager里面的ImageView
 private int[] imageID;//
 private ImagePagerAdapter adapter;//适配器
 private LinearLayout linearLayout;
 private int currentPoint;//当前被选中中页面的下标
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  // TODO Auto-generated method stub
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity01);
  initData();
  initView();
  
 }
 //初始化view
 void initView(){
  adapter=new ImagePagerAdapter(views);
  viewPager=(ViewPager) findViewById(R.id.viewPager);
  viewPager.setAdapter(adapter);
  linearLayout=(LinearLayout) findViewById(R.id.linearLayout);
  initPoint();
  viewPager.setOnPageChangeListener(this);
 }
 
 //初始化数据
 void initData(){
  //将图片的id全部放到imageID集合中
  imageID=new int[]{R.drawable.guide1,R.drawable.guide2,R.drawable.guide3,R.drawable.guide4};
  views=new ArrayList();
  //给iamgeView设置LayoutParams参数
  LayoutParams layoutParams=new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
  for(int i:imageID){
   //不确定1
   ImageView imageView=new ImageView(this);
   imageView.setImageResource(i);
   imageView.setLayoutParams(layoutParams);
   views.add(imageView);
  }
  
  
 }
 
 /*
  * 初始化页面下方的点
  */
 private void initPoint(){
  ImageView[] imageView=new ImageView[imageID.length]; 
  for(int i=0;i

package fry;

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

import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.view.ViewGroup;

public class ImagePagerAdapter extends PagerAdapter{

 private List views;
 
 
 
 public ImagePagerAdapter(List views) {
  this.views=views;
 }

 @Override
 public int getCount() {
  // TODO Auto-generated method stub
  return this.views.size();
 }
 /**
  * position是在viewPager中显示图片的位置
  * 我对应的图片放到对应的位置就好了
  * instantiateItem和destroyItem是对应的
  * 一个是创建item，一个是销毁item
  */
 @Override
 public Object instantiateItem(ViewGroup container, int position) {
  ((ViewPager)container).addView(views.get(position));
  return views.get(position);
 }

 @Override
 public boolean isViewFromObject(View arg0, Object arg1) {
  // TODO Auto-generated method stub
  return arg0==arg1;
 }

 @Override
 public void destroyItem(ViewGroup container, int position, Object object) {
  ((ViewPager)container).removeView(views.get(position));
 }

}

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