Learning Mobile App Development: A Hands-on Guide to Building Apps with iOS and Android

Create the Data Source Class

Create a new class named ContactDataSource. Enter the code in Listing 5.2, being sure to import any objects underlined in red.

Listing 5.2 ContactDataSource Required Code

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public class ContactDataSource {    private SQLiteDatabase database;                                              //1    private ContactDBHelper dbHelper;    public ContactDataSource(Context context) {                                   //2        dbHelper = new ContactDBHelper(context);    }    public void open() throws SQLException {                                      //3        database = dbHelper.getWritableDatabase();    }    public void close() {                                                         //4         ...