Deleting songs from playlist

android, playlist

Solution

This is the correct code.Hope it helps someone :)

public int deletePlaylistTracks(Context context, long playlistId,
        long audioId) {
    ContentResolver resolver = context.getContentResolver();
    int countDel = 0;
    try {
        Uri uri = MediaStore.Audio.Playlists.Members.getContentUri(
                "external", playlistId);
        String where = MediaStore.Audio.Playlists.Members._ID + "=?" ; // my mistake was I used .AUDIO_ID here

        String audioId1 = Long.toString(audioId);
        String[] whereVal = { audioId1 };
        countDel=resolver.delete(uri, where,whereVal);      
        Log.d("TAG", "tracks deleted=" + countDel);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return countDel;

 }

Problem

I am trying to delete a song from playlist . But don't know why it is not deleting . These are the values I am checking in the debug mode: URI -- content://media/external/audio/playlists/4599/members WHERE --audio_id=? selectionArgs[]-- [1214] I found while debugging that the control skips these lines in ContentResolver.class . ``` public final int delete(Uri url, String where, String[] selectionArgs) { try { long startTime = SystemClock.uptimeMillis(); //skipped int rowsDeleted = provider.delete(mPackageName, url, where, selectionArgs);//skipped long durationMillis = SystemClock.uptimeMillis() - startTime;//skipped maybeLogUpdateToEventLog(durationMillis, url, "delete", where); return rowsDeleted; // returns 0 } ``` Posting below my code to delete song: ``` public int deletePlaylistTracks(Context context, long playlistId, long audioId) { ContentResolver resolver = context.getContentResolver(); int countDel = 0; Uri uri = MediaStore.Audio.Playlists.Members.getContentUri("external", playlistId); String selection = MediaStore.Audio.Playlists.Members.AUDIO_ID + "=?"; String selectionargs[] = { String.valueOf(audioId) }; if (resolver.delete(uri, selection, selectionargs) != 0) { countDel++; } Log.d("TAG", "tracks deleted=" + countDel); return countDel;} //returns 0 ``` UPDATE: This is how I am calling deletePlaylistTracks ``` public void delete(final List<Long> songsDelete, //audioId final List<Integer> position) { if (playlistId != -1) { for (int i = 0; i < songsDelete.size(); i++) { Log.d("song going to del", ""+ songsDelete.get(i)); //audio Id 1214 int countDel = utility.deletePlaylistTracks(PlaylistTracks.this,playlistId,songsDelete.get(i)); } ``` Can anyone please suggest what could be wrong?

Original source