You can get a little glimpse of this from the SQLiteOpenHelper onCreate method documentation: That's the basic problem I see most Android developers run into, but there is a second problem you also need to know about: If your database already exists, the onCreate method will never be called.Īs its named implies, the onCreate method is only called when the database needs to be created. It took me a little while to understand this, but onCreate isn't called from your constructor it’s called by the Android framework when you try to access your database. In fact, onCreate won't be called at all unless you call the getWritableDatabase or getReadableDatabase methods on your SQLiteOpenHelper class, like this:

There are a couple of possible problems here, but as I found out, the first thing to know is that just calling the constructor for your SQLiteOpenHelper class isn’t enough to have the onCreate method called. Android/ SQLite FAQ: I’ve created an instance of a SQLiteOpenHelper object, but the onCreate method isn’t getting called, what's wrong? ( onCreate is not getting called, and my database tables are not being created.)

Sqliteopenhelper