删除导致文件损坏的音频文件 - 奇怪的行为

Question

我正在尝试删除我的应用中的音频文件。当我点击删除时，该文件被成功删除，该项目将从列表视图中删除。但是当我打开应用程序时，该歌曲再次出现在列表视图中，即使它现在无法播放。我也试过通过股票音乐应用打开歌曲，但它并没有打开。如果我检查外部存储器的路径位置，则找不到它。我在哪里我错了？困惑...

MenuItem miDelete = menu.add(0, 0, 0, "Delete");
            miDelete.setIcon(R.drawable.delete);
            miDelete.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
            miDelete.setOnMenuItemClickListener(new OnMenuItemClickListener() {

                @Override
                public boolean onMenuItemClick(MenuItem item) {

                    Iterator<String> it = songAdt.getCheckedItems()
                            .values().iterator();
                    Log.d("sparse boolean", ""
                            + songAdt.getCheckedItems().size());
                    for (int i = 0; i < songAdt.getCheckedItems().size(); i++) {

                        if (it.hasNext()) {

                            int posItem = Integer.parseInt(it.next());
                            Song song = (Song) songView
                                    .getItemAtPosition(posItem);

                            Log.d("file del path", song.getPathId());
                            File file = new File(song.getPathId());

                            files.add(file);
                            positionItem.add(posItem);
                        }

                    }
                    createDialog(files, positionItem);

                    return false;
                }
            });
public void createDialog(final List<File> files2,
        final List<Integer> position) {
    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
            getSherlockActivity());

    // set title
    alertDialogBuilder.setTitle("Delete");

    // set dialog message
    alertDialogBuilder
            .setMessage("Confirm delete the selected track")
            .setCancelable(false)
            .setPositiveButton("Yes",
                    new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int id) {
                            for (int i = 0; i < files2.size(); i++) {
                                Log.d("file del path2", "" + files2.get(i));
                                if (files2.get(i).exists()) {
                                    Log.d("file exists", "true");
                                    if (files2.get(i).canWrite()) {
                                        Log.d("file write", "true");
                                        fileDeleted = files2.get(i)
                                                .delete();
                                        Log.d("file deleted??", ""
                                                + fileDeleted); // returns true
                                    } else {
                                        Log.d("file locked", "true");
                                    }
                                } else {
                                    Log.d("file not exist", "true");
                                }

                                if (fileDeleted) {
                                    countDeleted++;

                                      songList.remove((int)position.get(i));
                                    getSherlockActivity().setTitle(
                                            R.string.app_name);

                                      songAdt.notifyDataSetChanged();
                                }
                            }
                            Toast.makeText(getSherlockActivity().getBaseContext(),
                                    countDeleted + " tracks Deleted",
                                    Toast.LENGTH_SHORT).show();
                            countDeleted = 0;
                            dialog.dismiss();
                        }
                    })
            .setNegativeButton("No", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int id) {
                    Toast.makeText(getSherlockActivity().getBaseContext(),
                            "Canceled", Toast.LENGTH_SHORT).show();

                    dialog.dismiss();
                }
            });

    // create alert dialog
    AlertDialog alertDialog = alertDialogBuilder.create();

    // show it
    alertDialog.show();
}

更新 这就是我在onCreate中获取歌曲的方式。

 public ArrayList<Song> getSongList(Context context) {
    // retrieve song info
    ContentResolver musicResolver = context.getContentResolver();
    Uri musicUri = android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
    // Fetch only music and not alarms,notification tones
    String selection = AudioColumns.IS_MUSIC + "!= 0";
    Cursor musicCursor = musicResolver.query(musicUri, null, selection,
            null, null);

    if (musicCursor != null && musicCursor.moveToFirst()) {
        // get columns
        int titleColumn = musicCursor.getColumnIndex(MediaColumns.TITLE);
        int idColumn = musicCursor.getColumnIndex(AudioColumns.ALBUM_ID);
        int audioId = musicCursor.getColumnIndex(AudioColumns._ID);
        int artistColumn = musicCursor.getColumnIndex(AudioColumns.ARTIST);
        int column_index = musicCursor.getColumnIndex(MediaColumns.DATA);
        int album_index = musicCursor.getColumnIndex(AudioColumns.ALBUM);
        int duration_index = musicCursor
                .getColumnIndex(AudioColumns.DURATION);
        int size_index = musicCursor.getColumnIndex(MediaColumns.SIZE);
        String pathId = null;

        // add songs to list
        do {
            long albumId = musicCursor.getLong(idColumn);
            if (column_index != -1) {
                pathId = musicCursor.getString(column_index);
            }

            String thisTitle = musicCursor.getString(titleColumn);
            String thisArtist = musicCursor.getString(artistColumn);
            String thisAlbum = musicCursor.getString(album_index);
            String thisDuration = musicCursor.getString(duration_index);
            String thisSize = musicCursor.getString(size_index);
            long thisAudioId = musicCursor.getLong(audioId);
            songList.add(new Song(albumId, thisTitle, thisArtist, pathId,
                    thisAlbum, thisDuration, thisSize, thisAudioId));

        } while (musicCursor.moveToNext());
        return songList;

    }
    return null;

}