学步园

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" android:orientation="vertical">
<!-- 此处需要给出全路径 -->
<android.support.v4.view.ViewPager
    android:id="@+id/viewpagerLayout" android:layout_height="fill_parent" android:layout_width="fill_parent"/>
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" android:orientation="vertical">
    <TextView android:textAppearance="?android:attr/textAppearanceLarge" android:layout_height="wrap_content" android:id="@+id/textView1" android:layout_width="fill_parent" android:text="第一页"></TextView>
    <EditText android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/editText1">
        <requestFocus></requestFocus>
    </EditText>
</LinearLayout>

package com.lenovo.robin;


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


import android.app.Activity;
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.View;
import android.widget.EditText;
import android.widget.TextView;


public class TestViewPagerActivity extends Activity{
    final static String tag = "robin";
    private ViewPager myViewPager;
    private MyPagerAdapter myAdapter;


    private LayoutInflater mInflater;
    private List<View> mListViews;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.viewpager_layout);
     myAdapter = new MyPagerAdapter();
     myViewPager = (ViewPager) findViewById(R.id.viewpagerLayout);
     myViewPager.setAdapter(myAdapter);
     mListViews = new ArrayList<View>();
     mInflater = getLayoutInflater();
     for(int i=0;i<5;i++){
     View layout = mInflater.inflate(R.layout.pager_layout, null);
     TextView textView = (TextView) layout.findViewById(R.id.textView1);
     textView.setText("这是第"+i+"页");
     mListViews.add(layout);
     }
     /* 初始化第二页当前页view*/
     if(mListViews.size()>2)
         myViewPager.setCurrentItem(100*mListViews.size()+1);
     else
         myViewPager.setCurrentItem(1);
     myViewPager.setOnPageChangeListener(new OnPageChangeListener() {
      @Override
      public void onPageSelected(int position) {
       Log.d(tag, "onPageSelected - " +position);
       /* view从1到2滑动，2被加载后调用此方法*/
       position=position%mListViews.size();
       View v = mListViews.get(position);
       EditText editText = (EditText) v.findViewById(R.id.editText1);
       editText.setText("动态设置第" + position + "页的edittext控件的值");
      }
      @Override
      public void onPageScrolled(int arg0, float arg1, int arg2) {
       Log.d(tag, "onPageScrolled - " + arg0);
       /*从1到2滑动，在1滑动前调用*/
      }
      @Override
      public void onPageScrollStateChanged(int arg0) {
       Log.d(tag, "onPageScrollStateChanged - " + arg0);
       /* 状态有三个0空闲，1是增在滑行中，2目标加载完毕*/
       /**
        * 
        * Indicates that the pager is in an idle, settled state. The
        * current page
        * 
        * is fully in view and no animation is in progress.
        */
       /* public static final int SCROLL_STATE_IDLE = 0;*/
       /**
        * 
        * Indicates that the pager is currently being dragged by the
        * user.
        */
       /* public static final int SCROLL_STATE_DRAGGING = 1;*/
       /**
        * 
        * Indicates that the pager is in the process of settling to a
        * final position.
        */
       /* public static final int SCROL