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

Code the Activity

You are almost ready to test your custom adapter. But first you need to change the ContactListActivity code to retrieve contact objects rather than contact names, set the ListView to use the custom adapter, and code the onItemClick method to pass the selected contact’s ID to ContactActivity. The first two changes require changing only one line of code each. Switch to the ContactListActivity.java. Code the activity to retrieve Contact objects rather than names by changing the

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ArrayList<String> names = ds.getContactName();

line of code to

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final ArrayList<Contact> contacts = ds.getContacts();

The final keyword needs to be added because you will now use the ArrayList inside ...