How to get song title? Android

Question

I have song on SD card and I'm trying to get title of that song:

File f = new File(filename);

String[] projection = { MediaStore.Audio.Media._ID, 
                        MediaStore.Audio.Media.ARTIST,
                        MediaStore.Audio.Media.TITLE,
                        MediaStore.Audio.Media.DATA, 
                        MediaStore.Audio.Media.DISPLAY_NAME,
                        MediaStore.Audio.Media.DURATION};

Cursor musiccursor = managedQuery(Uri.fromFile(f), 
                        projection, null, null, null);
musicTV.setText(musiccursor.getString(3));

but in last line i've got NullPointerException. Thanks for any advice.

where is `musiccursor.getColumnIndex(MediaStore.Audio.Media.TITLE)`? You've assumed that index should have value 3. This is bad assumption and event if it would be good assumption then in java index starts from 0 not from 1. — Marek R, Dec 07 '12 at 16:31
Personally, I used null in my projection (so I get all columns) until I figured out how to do it. Then I reduced my query content. — Eric Fossum, Dec 07 '12 at 16:38

score 0 · Answer 1 · answered Dec 07 '12 at 16:28

if you are using a cursor, when you are getting some content you have to move the cursor to the first element, because the cursor is pointing before the first element. Try using:

Cursor musiccursor = managedQuery(Uri.fromFile(f),  projection, null, null, null);
cursor.moveToFirst();
musicTV.setText(musiccursor.getString(3));

score 0 · Answer 2 · edited May 23 '17 at 10:24

0

Have you seen this which gets you 90% there, then this will get you the rest of the way.

Query Device
Init Cursor
Traverse Cursor

The hard part is understanding the abstract nature of columns. Just remember it's a database table and can be visualized as a spreadsheet. DON'T FORGET CATCH STATEMENTS!

edited May 23 '17 at 10:24

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answered Dec 07 '12 at 16:30

Eric Fossum

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How to get song title? Android

2 Answers2