Android Open Source - NPlayer File Utils

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License

The source code is released under:
Apache License
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Java Source Code

package com.qinxiandiqi.utils;
/*  w w w  . jav a 2s .  co m*/
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.util.List;

import android.content.Context;
import android.widget.Toast;

import com.qinxiandiqi.bean.MusicFile;
import com.qinxiandiqi.bean.VideoFile;
import com.qinxiandiqi.nplayer.R;

public class FileUtils {

  // ????path???????????
  public static final List<File> getSearchFileByPath(String path,
      List<File> searchFileList) {
    File file = new File(path);
    if (file.isDirectory()) {
      searchFileList.add(file);
      File[] fileArray = file.listFiles();
      for (File item : fileArray) {
        if (item.isDirectory()) {
          searchFileList.add(item);
        } else if (item.isFile()) {
          if (MediaUtils.isAudioFile(item.getAbsolutePath())
              || MediaUtils.isVideoFile(item.getAbsolutePath())) {
            searchFileList.add(item);
          }
        }
      }
    }
    return searchFileList;
  }

  // ????path??????
  public static final void scanMedia(String path) {
    File file = new File(path);
    if (file.isDirectory()) {
      File[] files = file.listFiles();
      if (files == null) {
        return;
      }
      for (File item : files) {
        scanMedia(item.getAbsolutePath());
      }
    } else if (file.isFile()) {
      if (MediaUtils.isAudioFile(path)) {
        for (int i = 0; i < CodeUtils.musicListLength; i++) {
          if (path.equals(CodeUtils.musicFileList.get(i)
              .getMediaPath()))
            return;
        }
        MusicFile musicFile = new MusicFile();
        musicFile.setMediaPath(path);
        musicFile.setMediaName(MediaUtils.getFileTitle(path));
        CodeUtils.musicFileList.add(musicFile);
      }
      if (MediaUtils.isVideoFile(path)) {
        for (int i = 0; i < CodeUtils.videoListLength; i++) {
          if (path.equals(CodeUtils.videoFileList.get(i).getMediaPath()))
            return;
        }
        VideoFile videoFile = new VideoFile();
        videoFile.setMediaName(MediaUtils.getFileTitle(path));
        videoFile.setMediaPath(path);
        CodeUtils.videoFileList.add(videoFile);
      }
    }
  }

  public static final void readMusicListFromXML(Context context) {
    File file = new File(context.getFilesDir(), "MusicList.xml");
    if (file.exists() && (file.length() != 0)) {
      try {
        XMLUtils.readMusicXML(new FileInputStream(file));
      } catch (FileNotFoundException e) {
        Toast.makeText(context, R.string.notfoundlistfile,
            Toast.LENGTH_SHORT).show();
        e.printStackTrace();
      } catch (Exception e) {
        Toast.makeText(context, R.string.readxmlfail,
            Toast.LENGTH_SHORT).show();
        e.printStackTrace();
      }
    }

  }

  public static final void writeMusicListToXML(Context context) {

    File file = new File(context.getFilesDir(), "MusicList.xml");
    try {
      file.createNewFile();
      XMLUtils.writeMusicXML(new FileOutputStream(file));
    } catch (Exception e) {
      Toast.makeText(context, R.string.writexmlfail, Toast.LENGTH_SHORT)
          .show();
      e.printStackTrace();
    }
  }

  public static final void readVideoListFromXML(Context context) {
    File file = new File(context.getFilesDir(), "VideoList.xml");
    if (file.exists() && (file.length() != 0)) {
      try {
        XMLUtils.readVideoXML(new FileInputStream(file));
      } catch (FileNotFoundException e) {
        Toast.makeText(context, R.string.notfoundlistfile,
            Toast.LENGTH_SHORT).show();
        e.printStackTrace();
      } catch (Exception e) {
        Toast.makeText(context, R.string.readxmlfail,
            Toast.LENGTH_SHORT).show();
        e.printStackTrace();
      }
    }
  }

  public static final void writeVideoListToXML(Context context) {
    File file = new File(context.getFilesDir(), "VideoList.xml");
    try {
      file.createNewFile();
      XMLUtils.writeVideoXML(new FileOutputStream(file));
    } catch (Exception e) {
      Toast.makeText(context, R.string.writexmlfail, Toast.LENGTH_SHORT)
          .show();
      e.printStackTrace();
    }
  }
}
Java Source Code List
