Android:ViewPager

下面是一个实例，

目录层次结构如下：

main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    <android.support.v4.view.ViewPager
        android:id="@+id/pager"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        >
    </android.support.v4.view.ViewPager>

</LinearLayout>

　　view01.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    <TextView 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="the first"
        />
    
    
	
</LinearLayout>

　　view02.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    <TextView 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="the first"
        />
    
    
	
</LinearLayout>

　　view03,view04略。

MyPagerAdapter.java:

package com.wyl.veiwpager;

import java.util.List;

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

public class MyPagerAdapter extends PagerAdapter {
	private List<View> viewList;
	private List<String> titleList;

	/*
	 * 建立一个构造方法：
	 */
	public MyPagerAdapter(List<View> viewList) {
		// ,List<String> titleList
		this.viewList = viewList;
		// this.titleList = titleList;
	}

	// 返回所有视图的数量
	@Override
	public int getCount() {
		// TODO Auto-generated method stub
		return viewList.size();
	}

	// 判断视图是否由对象产生
	@Override
	public boolean isViewFromObject(View arg0, Object arg1) {
		// TODO Auto-generated method stub
		return arg0 == arg1;
	}

	// 实例化页面
	@Override
	public Object instantiateItem(ViewGroup container, int position) {
		// TODO Auto-generated method stub
		container.addView(viewList.get(position));
		return viewList.get(position);
	}

	// 删除页面
	@Override
	public void destroyItem(ViewGroup container, int position, Object object) {
		// TODO Auto-generated method stub
		container.removeView(viewList.get(position));
	}

	@Override
	public CharSequence getPageTitle(int position) {
		// TODO Auto-generated method stub
		return titleList.get(position);
	}
}

MainActivity:

package com.wyl.veiwpager;

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

import android.app.Activity;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
import android.view.View;

public class MainActivity extends Activity {
	private List<View> viewlist;
	private ViewPager pager;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		//初始化viewlist
		viewlist = new ArrayList<View>();
		/*
		 * 第二个参数为：布局文件的layoutId
		 * 第三个参数：    父组件，一般写为null就可以了
		 */
		View view01 = View.inflate(this, R.layout.view01, null);
		View view02 = View.inflate(this, R.layout.view02, null);
		View view03 = View.inflate(this, R.layout.view03, null);
		View view04 = View.inflate(this, R.layout.view04, null);
		/*
		 * 通过view对象作为ViewPager的数据源
		 */
		viewlist.add(view01);
		viewlist.add(view02);
		viewlist.add(view03);
		viewlist.add(view04);
		
		//1 初始化ViewPager
		pager= (ViewPager) findViewById(R.id.pager);
		//2 创建PagerAdapter的适配器
		MyPagerAdapter adapter = new MyPagerAdapter(viewlist);
		//3 ViewPager加载适配器
		pager.setAdapter(adapter);
		
	}

	

}

　　效果图如下，