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

Create the Data Source Method

The complex list displays and uses several bits of data about a contact. To function properly, it needs all the data for a contact. This requires a method to retrieve contact data for all contacts from the database. Open or switch to ContactDataSource.java to create a new method that returns that data as Contact objects in an ArrayList. Use the code in Listing 6.5.

Listing 6.5 getContacts Method

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public ArrayList<Contact> getContacts() {    ArrayList<Contact> contacts = new ArrayList<Contact>();    try {        String query = "SELECT  * FROM contact";        Cursor cursor = database.rawQuery(query, null);        Contact newContact;        cursor.moveToFirst();        while (!cursor.isAfterLast()) ...