Android Programming Tutorials

Seeking the Proper Level

public String getDisplayNameField() {

return(Contacts.DISPLAY_NAME);

}

}

We simply generate and return the Cursor using the same query as before,

and indicate that Contacts.DISPLAY_NAME is what should be used from the

Cursor for the dialog.

Step #3: Implement the Interface: the Old Way..............................

We also need an implementation of this interface that used the old

Contacts content provider, as opposed to the new ContactsContract

content provider. The good news is that while the classes changed, the

general concepts are still the same. It is still a content provider, which we

can query against to get the data we need. All we need is the proper content

Uri, the proper set of projection columns, the right WHERE clause, and so

on.

With that in mind, add the following as

LunchList/src/apt/tutorial/OldMobileContacts.java:

package apt.tutorial;

import android.app.Activity;

import android.database.Cursor;

import android.provider.Contacts;

class OldMobileContacts implements MobileContactsBridge {

public Cursor getMobileNumbers(Activity host) {

String[] PROJECTION=new String[] { Contacts.Phones._ID,

Contacts.Phones.NAME,

Contacts.Phones.NUMBER

};

String[] ARGS={String.valueOf(Contacts.Phones.TYPE_MOBILE)};

return(host.managedQuery(Contacts.Phones.CONTENT_URI,

PROJECTION,

Contacts.Phones.TYPE+"=?", ARGS,

Contacts.Phones.NAME));

}

public String getDisplayNameField() {

return(Contacts.Phones.NAME);

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