fragmentPagerAdapter使用

FragmentPagerAdapter是PagerAdapter的子类，它可以将Fragment放入viewPager中，它主要实现两个方法：

Fragment getItem(int index)；

int getCount();

示例代码如下：

package com.dream.pagertitlestrip;

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

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

public class MyFragementPagerAdapter extends FragmentPagerAdapter{
	
	Fragment parent;
	List<String> titles;

	public List<String> getTitles() {
		return titles;
	}

	public void setTitles(List<String> titles) {
		if(titles!=null)
			this.titles = titles;
		else
			this.titles=new ArrayList<String>();
	}

	public MyFragementPagerAdapter(FragmentManager fm,List<String> titles,Fragment parent) {
		super(fm);
		setTitles(titles);
		this.parent=parent;
	}

	@Override
	public Fragment getItem(int index) {		
		String title=titles.get(index);
		return FragmentFactory.newFragment(title,parent);
	}

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

}

特别要注意的是；如果viewpager在fragment中，即当我们想要在fragment中放入fragment的时候；不能使用

getFragmentManager或者getSupportFragmentManager而要使用getChildFragmentManager()；上API：

getChildFragmentManager()：

Return a private FragmentManager for placing and managing Fragments inside of this Fragment.

getFragmentManager()/getSupportFragmentManager():

Return the FragmentManager for interacting with fragments associated with this fragment's activity.