Android - "Method Call Expected" error when trying to build a singleton SQLiteOpenHelper

Question

New programmer here trying to self-learn, apologies for any stupid questions.

I'm trying to build a SQLite database with a singleton pattern in Android, so I can access the same DB through many different activities. I have the code below, but in the dbInstance = DatabaseHelper(context.getApplicationContext()); line, they have flagged an error "Method call expected".

I've searched google and this site, but it seems like this error can be triggered for a variety of reasons, and I wasn't able to figure out what's wrong in my case.

private static class DatabaseHelper extends SQLiteOpenHelper{

    private static DatabaseHelper dbInstance = null;

    private DatabaseHelper(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }

    public static DatabaseHelper getInstance(Context context) {
        synchronized(DatabaseHelper.class) {
            if(dbInstance == null) {
                dbInstance = DatabaseHelper(context.getApplicationContext());
            }
        }

        return dbInstance;
    }

Appreciate all of your help in advance!

Thank you Mike M. Apologies for overlooking that one – adz Dec 05 '16 at 11:10 — adz, Dec 05 '16 at 11:10

score 0 · Answer 1 · answered Nov 21 '16 at 08:44

0

Should be

dbInstance = new DatabaseHelper(context.getApplicationContext());

answered Nov 21 '16 at 08:44

Michel_T.

2,741
5
21
31

Thank you Michel_T. Super helpful – adz Dec 05 '16 at 11:10

Android - "Method Call Expected" error when trying to build a singleton SQLiteOpenHelper

1 Answers1