Vitamio 视频播放器 的使用

package com.nmbb.oplayer.ui;

import com.nmbb.oplayer.R;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.RadioButton;

public class MainFragmentActivity extends FragmentActivity implements
  OnClickListener {

 private ViewPager mPager;
 private RadioButton mRadioFile;
 private RadioButton mRadioOnline;

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

  // ~~~~~~ 绑定控件
  mPager = (ViewPager) findViewById(R.id.pager);
  mRadioFile = (RadioButton) findViewById(R.id.radio_file);
  mRadioOnline = (RadioButton) findViewById(R.id.radio_online);

  // ~~~~~~ 绑定事件
  mRadioFile.setOnClickListener(this);
  mRadioOnline.setOnClickListener(this);
  mPager.setOnPageChangeListener(mPagerListener);

  // ~~~~~~ 绑定数据
  mPager.setAdapter(mAdapter);
 }

 @Override
 public void onBackPressed() {
  if (getFragmentByPosition(mPager.getCurrentItem()).onBackPressed())
   return;
  else
   super.onBackPressed();
 }
 
 /** 查找Fragment */
 private FragmentBase getFragmentByPosition(int position) {
  return (FragmentBase) getSupportFragmentManager().findFragmentByTag("android:switcher:" mPager.getId() ":" position);
 }

 private FragmentPagerAdapter mAdapter = new FragmentPagerAdapter(
   getSupportFragmentManager()) {

  /** 仅执行一次 */
  @Override
  public Fragment getItem(int position) {
   Fragment result = null;
   switch (position) {
   case 1:
    result = new FragmentOnline();// 在线视频
    break;
   case 0:
   default:
    result = new FragmentFile();// 本地视频
    break;
   }
   return result;
  }

  @Override
  public int getCount() {
   return 2;
  }

 };

 private ViewPager.SimpleOnPageChangeListener mPagerListener = new ViewPager.SimpleOnPageChangeListener() {
  @Override
  public void onPageSelected(int position) {
   switch (position) {
   case 0:// 本地视频
    mRadioFile.setChecked(true);
    break;
   case 1:// 在线视频
    mRadioOnline.setChecked(true);
    break;
   }
  }
 };

 @Override
 public void onClick(View v) {
  switch (v.getId()) {
  case R.id.radio_file:
   mPager.setCurrentItem(0);
   break;
  case R.id.radio_online:
   mPager.setCurrentItem(1);
   break;
  }
 }
}