由普通layout構成的viewPager

一般用於展示類的頁面(如新的app開啟出現的引導頁)

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">

    <android.support.v4.view.ViewPager
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:id="@+id/pager"
        >
        <android.support.v4.view.PagerTabStrip
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="top"
            android:id="@+id/tab">
        </android.support.v4.view.PagerTabStrip>
    </android.support.v4.view.ViewPager>
</RelativeLayout>

定義介面卡

package com.example.administrator.viewpager;

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

import java.util.List;

/**
 * Created by Administrator on 2015/7/22.
 */
public class MyPagerAdapter extends PagerAdapter{
    private List<View> viewList;
    private List<String> titleList;

    public MyPagerAdapter(List<View> viewList,List<String> titleList){
        this.viewList = viewList;
        this.titleList = titleList;
    }

    //返回viewPager的個數
    @Override
    public int getCount() {
        return viewList.size();
    }


    //view 是否來源於物件
    @Override
    public boolean isViewFromObject(View view, Object o) {
        return view == o;
    }

    //例項化一個 頁卡
    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        container.addView(viewList.get(position));
        return viewList.get(position);
    }

    //銷燬一個 頁卡
    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        container.removeView(viewList.get(position));
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return titleList.get(position);
    }
}

MainActivity.java

package com.example.administrator.viewpager;

import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewParent;

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


public class MainActivity extends ActionBarActivity {
    private List<View> viewList;
    private List<String> titleList;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        View view1 = View.inflate(this,R.layout.view1,null);
        View view2 = View.inflate(this,R.layout.view2,null);
        View view3 = View.inflate(this,R.layout.view3,null);
        View view4 = View.inflate(this,R.layout.view4,null);

        viewList = new ArrayList<View>();
        viewList.add(view1);
        viewList.add(view2);
        viewList.add(view3);
        viewList.add(view4);


        titleList = new ArrayList<String>();
        titleList.add("第一頁");
        titleList.add("第二頁");
        titleList.add("第三頁");
        titleList.add("第四頁");

        MyPagerAdapter adapter = new MyPagerAdapter(viewList,titleList);

        ViewPager viewPager = (ViewPager)findViewById(R.id.pager);
        viewPager.setAdapter(adapter);
    }
}

由Fragment構成的ViewPager1

使用FragmentPagerAdapter介面卡（不會自動銷燬超過三個的pager<目前理解>）

MyFragmentPagerAdapter

package com.example.administrator.viewpager;

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;

import java.util.List;

/**
 * Created by Administrator on 2015/7/22.
 */
public class MyFragmentPagerAdapter extends FragmentPagerAdapter{

    private List<Fragment> fragmentList;
    private List<String> titleList;

    public MyFragmentPagerAdapter(FragmentManager fm, List<Fragment> fragmentList,List<String> titleList) {
        super(fm);
        this.fragmentList = fragmentList;
        this.titleList = titleList;
    }

    @Override
    public Fragment getItem(int i) {
        return fragmentList.get(i);
    }

    @Override
    public int getCount() {
        return fragmentList.size();
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return titleList.get(position);
    }
}

MainActivity

MyFragmentPagerAdapter adapter = new MyFragmentPagerAdapter(getSupportFragmentManager(),fragmentList,titleList);
        ViewPager viewPager = (ViewPager)findViewById(R.id.pager);
        viewPager.setAdapter(adapter);

由Fragment構成的ViewPager2

使用FragmentStatePagerAdapter介面卡（超過三個會自動銷燬）

只需要介面卡繼承FragmentStatePagerAdapter即可