android ViewPager使用

1，xml布局

<android.support.v4.view.ViewPager
                    android:id="@+id/viewPager"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"/>

2，适配器

viewpager中的单页为layout布局或单个控件时继承PagerAdapter

package com.shilian.yibo.adapter;

import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.support.v4.view.PagerAdapter;
import android.util.DisplayMetrics;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;

import com.bumptech.glide.Glide;
import com.bumptech.glide.request.animation.GlideAnimation;
import com.bumptech.glide.request.target.SimpleTarget;
import com.shilian.yibo.entity.RollingPictureBean;
import com.shilian.yibo.homepage.RollingPageDetailsActivity;
import com.shilian.yibo.utils.MyBitmapUtils;
import com.shilian.yibo.utils.UrlUtils;
import com.shilian.yibo.utils.ValueUtils;

import java.util.List;

/**
 * Created by Burn on 2017/2/28.
 */
public class RollingPagerAdapter extends PagerAdapter {

    private List<RollingPictureBean> res_list;
    private Context context;

    public RollingPagerAdapter(Context context, List<RollingPictureBean> res_list) {
        this.context = context;
        this.res_list=res_list;
    }

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

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return view==object;
    }

    @Override
    public Object instantiateItem(ViewGroup container, final int position) {
        final ImageView imageView = new ImageView(context);
        container.addView(imageView);
        return imageView;
    }

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

viewpager中的单页为fragment时继承FragmentStatePagerAdapter

package com.shilian.collector.adapter;

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.app.FragmentTransaction;
import android.util.Log;
import android.view.ViewGroup;

import com.shilian.collector.entity.OrderBean;

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

/**
 * Created by Burn on 2016/11/21.
 */
public class OrderPagerAdapter extends FragmentStatePagerAdapter {
    //数据源fragment
    private List<Fragment> res_frag_list;
    private List<String> res_tab_arr;

    /**
     * 构造方法
     * */
    public OrderPagerAdapter(FragmentManager fm,List<Fragment> res_frag_list,List<String> res_tab_arr) {
        super(fm);
        this.res_frag_list=res_frag_list;
        this.res_tab_arr=res_tab_arr;
    }

    /**
     * 重写getItem方法，获取单项
     * */
    @Override
    public Fragment getItem(int position) {
        return res_frag_list.get(position);
    }

    /**
     * 重写getCount方法，获取页数
     * */
    @Override
    public int getCount() {
        return res_frag_list.size();
    }

    /**
     * 重写getPageTitle方法，获取标题
     * */
    @Override
    public CharSequence getPageTitle(int position) {
        return res_tab_arr.get(position);
    }

   /**
     * 重写destroyItem，内部不到用super.destroyItem方法，可以保留fragment不被删除
     * */
    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {

    }
}

添加标题：
1，ViewPager标签下添加子标签
<android.support.v4.view.PagerTabStrip（也可以是PagerTitleStrip）
id,width,height,gravity>
</android.support.v4.view.PagerTabStrip>
2,新建list<String>集合存放标题
3,将list集合作为MyPageAdapter的数据源传入
4，在MyPageAdapter中添加标题集合titleList，并用构造方法初始化
重写getPageTitle方法，return titleList.get(position),设置ViewPager的标题
5，为PagerTabStrip设置属性
tab. setBackgroundColor(color.YELLOW)
tab.setTextColor(Colro.RED)
tab.setDrawFullUnderlind(false)背景长线不显示
tab.setTabIndicatorColor(Color.GREEN)选中的短线颜色