Android 使用Vitamio打造自己的万能播放器（3）――本地播放（主界面、播放列表）

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="vertical" android:gravity="center_horizontal"
 android:layout_width="match_parent" android:layout_height="match_parent">
 <RadioGroup android:gravity="center_vertical"
 android:layout_width="fill_parent" android:layout_height="wrap_content"
 android:orientation="horizontal">
 <RadioButton android:id="@+id/radio_file" android:checked="true"
 style="@style/main_tab_bottom" android:drawableTop="@drawable/video_file"
 android:text="@string/title_file" />
 <RadioButton android:id="@+id/radio_online"
 android:drawableTop="@drawable/video_online" style="@style/main_tab_bottom"
 android:text="@string/title_online" />
 </RadioGroup>
 <android.support.v4.view.ViewPager
 android:background="@color/background" android:id="@+id/pager"
 android:layout_width="match_parent" android:layout_height="match_parent">
 </android.support.v4.view.ViewPager>
</LinearLayout>

public class MainFragmentActivity extends FragmentActivity {

 private ViewPager mPager;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.fragment_pager);
 mPager = (ViewPager) findViewById(R.id.pager);
 mPager.setAdapter(mAdapter);
 }

 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;
 }
 };
}

public class FragmentFile extends FragmentBase implements OnItemClickListener {

 private FileAdapter mAdapter;

 @Override
 public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 View v = super.onCreateView(inflater, container, savedInstanceState);
 mAdapter = new FileAdapter(getActivity(), null);
 mListView.setAdapter(mAdapter);
 mListView.setOnItemClickListener(this);
 new ScanVideoTask().execute();
 return v;
 }

 /** 单击启动播放 */
 @Override
 public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
 final File f = mAdapter.getItem(position);
 Intent intent = new Intent(getActivity(), VideoViewDemo.class);
 intent.putExtra("path", f.getPath());
 startActivity(intent);
 }

 /** 扫描SD卡 */
 private class ScanVideoTask extends AsyncTask<Void, File, Void> {

 @Override
 protected Void doInBackground(Void... params) {
 eachAllMedias(Environment.getExternalStorageDirectory());
 return null;
 }

 @Override
 protected void onProgressUpdate(File... values) {
 mAdapter.add(values[0]);
 mAdapter.notifyDataSetChanged();
 }

 /** 遍历所有文件夹，查找出视频文件 */
 public void eachAllMedias(File f) {
 if (f != null && f.exists() && f.isDirectory()) {
 File[] files = f.listFiles();
 if (files != null) {
 for (File file : f.listFiles()) {
 if (file.isDirectory()) {
 eachAllMedias(file);
 } else if (file.exists() && file.canRead() && FileUtils.isVideoOrAudio(file)) {
 publishProgress(file);
 }
 }
 }
 }
 }
 }

 private class FileAdapter extends ArrayAdapter<File> {

 public FileAdapter(Context ctx, ArrayList<File> l) {
 super(ctx, l);
 }

 @Override
 public View getView(int position, View convertView, ViewGroup parent) {
 final File f = getItem(position);
 if (convertView == null) {
 final LayoutInflater mInflater = getActivity().getLayoutInflater();
 convertView = mInflater.inflate(R.layout.fragment_file_item, null);
 }
 ((TextView) convertView.findViewById(R.id.title)).setText(f.getName());
 return convertView;
 }
 }

}