Android ViewPager 的简单应用

适配器

package com.example.android_viewpager;

import java.util.List;

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

public class MyViewPagerAdapter extends PagerAdapter{

	private List<View>viewList;
	private List<String>titleList;
	
	public MyViewPagerAdapter(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);
    }

}

布局文件就是一个viewpager 还有 四个子view 很简单

FragmentAdrater

package com.example.android_viewpager;

import java.util.List;

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

public class MyFragmentPagerAdapter extends FragmentPagerAdapter{

	private List<Fragment>fragList;
	private List<String>titleList;
	public MyFragmentPagerAdapter(FragmentManager fm,List<Fragment> fragList,List<String>titleList) {
		super(fm);
		// TODO Auto-generated constructor stub
		this.fragList=fragList;
		this.titleList=titleList;
	}

	@Override
	public Fragment getItem(int arg0) {
		// TODO Auto-generated method stub
		return fragList.get(arg0);
	}

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

}