MainActivity 主方法

package com.example.weekoneex;

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

import com.example.weekoneex.fragment.FragmentOne;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;

public class MainActivity extends FragmentActivity {

ViewPager vp;List<Fragment> list;@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    vp = (ViewPager) findViewById(R.id.vp);    initData();    MyPagerAdapter adapter = new MyPagerAdapter(getSupportFragmentManager());    vp.setAdapter(adapter);}private void initData() {    list = new ArrayList<Fragment>();    list.add(new FragmentOne());}class MyPagerAdapter extends FragmentPagerAdapter{    public MyPagerAdapter(FragmentManager fm) {        super(fm);        // TODO Auto-generated constructor stub    }    @Override    public Fragment getItem(int arg0) {        // TODO Auto-generated method stub        return list.get(arg0);    }    @Override    public int getCount() {        // TODO Auto-generated method stub        return list.size();    }}

}