android 通过向viewpage中添加listview来完成滑动效果(类似于qq滑动界面)

概述文件名：page.xml复制代码代码如下:<RelativeLayoutxmlns:android=\"http://schemas.android.com/apk/res/android\"   xmlns:tools=\"http://schemas.android.com/tools\"   andro

文件名：page.xml
复制代码 代码如下:
<relativeLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"
    xmlns:tools="http://schemas.androID.com/tools"
    androID:layout_wIDth="fill_parent"
    androID:layout_height="fill_parent" >

    <ListVIEw
        androID:ID="@+ID/ListvIEw"
        androID:layout_wIDth="match_parent"
        androID:layout_height="wrap_content" />

</relativeLayout>

文件名：ListvIEwitem.xml
复制代码 代码如下:
<linearLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"
    xmlns:tools="http://schemas.androID.com/tools"
    androID:layout_wIDth="fill_parent"
    androID:layout_height="fill_parent"
    androID:orIEntation="vertical" >

     <TextVIEw
        androID:ID="@+ID/textVIEw"
        androID:layout_wIDth="fill_parent"
        androID:layout_height="wrap_content"
        androID:text="hello"
        androID:textcolor="#00ff00"
      />
    <ImageVIEw
        androID:ID="@+ID/imageVIEw"
        androID:layout_wIDth="fill_parent"
        androID:layout_height="wrap_content"
        androID:layout_margin="5dp"
        />
</linearLayout>

以上的第二个布局文件 只提供给simpleAdapter

复制代码 代码如下:
package com.example.learnpager2;

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

import androID.app.Activity;
import androID.graphics.color;
import androID.os.Bundle;
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.util.Log;
import androID.vIEw.LayoutInflater;
import androID.vIEw.Menu;
import androID.vIEw.VIEw;
import androID.vIEw.VIEwGroup;
import androID.vIEw.VIEwParent;
import androID.Widget.ArrayAdapter;
import androID.Widget.button;
import androID.Widget.ListVIEw;
import androID.Widget.relativeLayout;
import androID.Widget.SimpleAdapter;

public class PagerActivity extends Activity {
    VIEwPager vIEwPager;
    ArrayList<VIEw> pagesArrayList;// 添加ListvIEw 然后传给MyPagerAdapter 充当媒介
    String[] strs;
    String[] strs2;
    ListVIEw ListVIEw;
    button button1;
    button button2;
    button button3;
    @OverrIDe
    protected voID onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentVIEw(R.layout.activity_pager);
        iniParams();
        iniVIEws();

    }
    private voID iniParams(){
        pagesArrayList=new ArrayList<VIEw>();
        strs=new String[]{"a","b","c","a","c"};
        strs2=new String[]{"1","2","3","1","3"};

    }
    private voID iniVIEws(){
        vIEwPager=(VIEwPager)findVIEwByID(R.ID.vIEwPager);
        //第一个页面的vIEwpager第1个page里的ListvIEw
        LayoutInflater layoutInflater=getLayoutInflater();

        ListVIEw=(ListVIEw)
                (layoutInflater.inflate(R.layout.page,null).findVIEwByID(R.ID.ListvIEw));
        ArrayAdapter<String> arrrayAdapter=new ArrayAdapter<String>(this,androID.R.layout.simple_List_item_1,strs);
        ListVIEw.setAdapter(arrrayAdapter);
        pagesArrayList.add(ListVIEw);

        //第个页面的vIEwpager第2个page里的ListvIEw
        ListVIEw=(ListVIEw)
                (layoutInflater.inflate(R.layout.page,null).findVIEwByID(R.ID.ListvIEw));
        ArrayAdapter<String> arrrayAdapter2=new ArrayAdapter<String>(this,strs2);
        ListVIEw.setAdapter(arrrayAdapter2);
        pagesArrayList.add(ListVIEw);

        //第三个面的vIEwpager第3个page里的ListvIEw
        SimpleAdapter simpleAdapter3=new SimpleAdapter(this,getDatasForListVIEw(),
                R.layout.ListvIEwitem,new String[]{"Title","image"},new int[]{R.ID.textVIEw,R.ID.imageVIEw});
        ListVIEw=(ListVIEw)
                (layoutInflater.inflate(R.layout.page,null).findVIEwByID(R.ID.ListvIEw));
        ListVIEw.setAdapter(simpleAdapter3);
        pagesArrayList.add(ListVIEw);

        vIEwPager.setAdapter(new MyPagerAdapter(pagesArrayList));
        vIEwPager.setonPagechangelistener(new MyOnPagechangelistener());
        vIEwPager.setCurrentItem(0);

        button1=(button)findVIEwByID(R.ID.button1);
        button2=(button)findVIEwByID(R.ID.button2);
        button3=(button)findVIEwByID(R.ID.button3);
    }
    public List<Map<String,Object>> getDatasForListVIEw(){
        Log.e("3","");
        List<Map<String,Object>> ListMaps=new ArrayList<Map<String,Object>>();

        String[] strings=new String[]{"图片1","图片2","图片3"};
        int[] images=new int[]{R.drawable.p1,R.drawable.p1,R.drawable.p1};

        for(int i=0;i<strings.length;i++){
            ListMaps.add(ListVIEwItemFactory.generate(new Object[]{strings[i],images[0]}));
        }
        return ListMaps;
    }
    static class ListVIEwItemFactory{
        static Map<String,Object> generate(Object[] obj){
            Map<String,Object> map=new HashMap<String,Object>();
            map.put("Title",obj[0]);
            map.put("image",obj[1]);
            return map;
        }
    }

    @OverrIDe
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.pager,menu);
        return true;
    }
    public class MyPagerAdapter extends PagerAdapter {
        public List<VIEw> mListVIEws;

        public MyPagerAdapter(List<VIEw> mListVIEws) {
            this.mListVIEws = mListVIEws;
        }

        @OverrIDe
        public voID destroyItem(VIEw arg0,int arg1,Object arg2) {

            Log.d("destroyItem",""+arg0+" "+arg1);
            ((VIEwPager) arg0).removeVIEw(mListVIEws.get(arg1));
        }
        @OverrIDe
        public int getCount() {
            return mListVIEws.size();
        }

        @OverrIDe
        public Object instantiateItem(VIEw arg0,int arg1) {
            Log.d("instantiateItem",""+arg0+" "+arg1);
            try {
                if(mListVIEws.get(arg1).getParent()==null)
                    ((VIEwPager) arg0).addVIEw(mListVIEws.get(arg1),0); 
                else{
                    //  很难理解新添加进来的vIEw会自动绑定一个父类，由于一个儿子vIEw不能与两个父类相关，所以得解绑
                    //不这样做否则会产生 vIEwpager java.lang.IllegalStateException: The specifIEd child already has a parent. You must call removeVIEw() on the child's parent first.
// 还有一种方法是vIEwPager.setoffscreenPagelimit(3); 这种方法不用判断parent 是不是已经存在，但多余的ListvIEw不能被destroy
                    ((VIEwGroup)mListVIEws.get(arg1).getParent()).removeVIEw(mListVIEws.get(arg1));

                    ((VIEwPager) arg0).addVIEw(mListVIEws.get(arg1),0);
                }
            } catch (Exception e) { 
                // Todo auto-generated catch block 
                Log.d("parent=",""+mListVIEws.get(arg1).getParent());
                e.printstacktrace(); 
            } 
            return mListVIEws.get(arg1);
        }

        @OverrIDe
        public boolean isVIEwFromObject(VIEw arg0,Object arg1) {
            return arg0 == (arg1);
        }

        @OverrIDe
        public voID restoreState(Parcelable arg0,ClassLoader arg1) {
        }

        @OverrIDe
        public Parcelable saveState() {
            return null;
        }

        @OverrIDe
        public voID startUpdate(VIEw arg0) {
        }
    }
    class MyOnPagechangelistener implements OnPagechangelistener{

        @OverrIDe
        public   voID onPageScrollStateChanged (int state){
            // Todo auto-generated method stub

        }

        @OverrIDe
        public voID onPageScrolled(int position,float positionOffset,int positionOffsetPixels) {
            // Todo auto-generated method stub

        }
        color precolor;
        @OverrIDe
        public voID onPageSelected(int position) {
            // Todo auto-generated method stub
            Log.d("page",  "pos="+position);
            switch(position)
            {
            case 0: //button1.setBackgroundcolor(0x00FF00);break;
            case 1:// button1.setBackgroundcolor(0xFF0000);break;
            case 2:
            }

        }

    }
}

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