page.title=Accessing Contacts Data

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<!-- Required platform, tools, add-ons, devices, knowledge, etc. -->
<h2>Dependencies and prerequisites</h2>
<ul>
  <li>Android 2.0 (API Level 5) or higher</li>
  <li>Experience in using {@link android.content.Intent} objects</li>
  <li>Experience in using content providers</li>
</ul>

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<h2>You should also read</h2>
<ul>
    <li>
        <a href="{@docRoot}guide/topics/providers/content-provider-basics.html">
        Content Provider Basics</a>
    </li>
    <li>
        <a href="{@docRoot}guide/topics/providers/contacts-provider.html">
        Contacts Provider</a>
    </li>
</ul>

<h2>Try it out</h2>

<div class="download-box">
    <a href="http://developer.android.com/shareables/training/ContactsList.zip" class="button">
    Download the sample
    </a>
 <p class="filename">ContactsList.zip</p>
</div>

</div>
</div>

<p>
    The <a href="{@docRoot}guide/topics/providers/contacts-provider.html">Contacts Provider</a> is
    the central repository of the user's contacts information, including data from contacts apps and
    social networking apps. In your apps, you can access Contacts Provider information directly by
    calling {@link android.content.ContentResolver} methods or by sending intents to a contacts app.
</p>
<p>
    This class focuses on retrieving lists of contacts, displaying the details for a particular
    contact, and modifying contacts using intents. The basic techniques described
    here can be extended to perform more complex tasks. In addition, this class helps you
    understand the overall structure and operation of the
    <a href="{@docRoot}guide/topics/providers/contacts-provider.html">Contacts Provider</a>.
</p>
<h2>Lessons</h2>
 
<dl>
    <dt>
        <b><a href="retrieve-names.html">Retrieving a List of Contacts</a></b>
    </dt>
    <dd>
        Learn how to retrieve a list of contacts for which the data matches all or part of a search
        string, using the following techniques:
        <ul>
            <li>Match by contact name</li>
            <li>Match any type of contact data</li>
            <li>Match a specific type of contact data, such as a phone number</li>
        </ul>
    </dd>
    <dt>
        <b><a href="retrieve-details.html">Retrieving Details for a Contact</a></b>
    </dt>
    <dd>
        Learn how to retrieve the details for a single contact. A contact's details are data
        such as phone numbers and email addresses. You can retrieve all details, or you can
        retrieve details of a specific type, such as all email addresses.
    </dd>
    <dt>
        <b><a href="modify-data.html">Modifying Contacts Using Intents</a></b>
    </dt>
    <dd>
        Learn how to modify a contact by sending an intent to the People app.
    </dd>
    <dt>
        <b>
            <a href="display-contact-badge.html">Displaying the Quick Contact Badge</a>
        </b>
    </dt>
    <dd>
        Learn how to display the {@link android.widget.QuickContactBadge} widget. When the user
        clicks the contact badge widget, a dialog opens that displays the contact's details and
        action buttons for apps that can handle the details. For example, if the contact has an
        email address, the dialog displays an action button for the default email app.
    </dd>
</dl>