page.title=Get Started with the Preview
meta.keywords="wear-preview"
page.tags="wear-preview"
page.image=images/cards/card-n-sdk_2x.png
@jd:body
<div id="qv-wrapper">
<div id="qv">
<ol>
<li>
<a href="#install_android_studio_and_the_latest_packages">Install
Android Studio and the Latest Packages</a>
</li>
<li>
<a href="#get_the_preview_reference_documentation">Get the Preview
Reference Documentation</a>
</li>
<li>
<a href="#update_or_create_a_project">Update or Create a
Project</a>
</li>
</ol>
</div>
</div>
<p>
If you want an environment for basic compatibility
testing of your app, you can use your current APK and a
supported watch or an emulator. You don't necessarily need to update your
full development environment to do basic testing. To simply test your
app's compatibility with a preview system image, see <a href=
"{@docRoot}wear/preview/downloads.html">Download and Test with a
Device</a>.
</p>
<p>
However, to develop apps for the Android Wear 2.0 Developer Preview, you
need to make some updates to your development environment, as described
below.
</p>
<h2 id="install_android_studio_and_the_latest_packages">
Install Android Studio and the Latest Packages
</h2>
<p>
1. For compatibility with the <a href="{@docRoot}preview/overview.html">N
Developer Preview</a>, follow the <a href=
"{@docRoot}preview/setup-sdk.html">setup instructions</a> for installing
the latest version of Android Studio.
</p>
<p>
2. Use the <a href="{@docRoot}tools/help/sdk-manager.html">SDK
manager</a> to install or confirm that you have the latest installations
of the following packages:
</p>
<ul>
<li>Under the <strong>SDK Platforms tab</strong>:
<ul>
<li>Android N Preview
</li>
</ul>
</li>
<li>Under the <strong>SDK Tools tab</strong>:
<ul>
<li>Android Support Library
</li>
<li>Google Play services
</li>
<li>Google Repository
</li>
<li>Android Support Repository
</li>
</ul>
</li>
</ul>
<h2 id="get_the_preview_reference_documentation">
Get the Preview Reference Documentation
</h2>
<p>
Detailed information about the preview is available in the preview
reference documentation, which you can download from the following table.
The zip file includes an updated API reference for the preview.
</p>
<table>
<tr>
<th style="width:300px">
Reference documentation
</th>
<th>
Checksums
</th>
</tr>
<tr>
<td>
<a href="http://storage.googleapis.com/androiddevelopers/shareables/wear-preview/wearable-support-preview-1-docs.zip">wearable-support-preview-1-docs.zip</a>
</td>
<td>MD5: 02f9dc7714c00076b323c9081655c3b2<br>
SHA-1: 075f3821ee9b66a919a0e8086f79c12bc9576fb2
</td>
</tr>
</table>
<h2 id="update_or_create_a_project">
Update or Create a Project
</h2>
<p>
To use the APIs, your project must be configured appropriately in Android
Studio.
</p>
<h3 id="update_an_existing_project">
Update an existing project
</h3>
<p>
To update an existing project for development:
</p>
<ol>
<li>Start Android Studio, click <strong>Open an existing Android Studio
Project</strong>, and select a project.
</li>
<li>If prompted by the Android SDK Manager for the SDK version to use for
the project, select <strong>Use Android Studio's
SDK</strong>.
</li>
<li>If prompted to update the Gradle plugin, update the version of the
plugin.
</li>
<li>In the <code>build.gradle</code> file for the Wear module, in the
<code>dependencies</code> section, update the existing reference to the
Wearable Support Library (for example, <code>compile
'com.google.android.support:wearable:1.4.0'</code>) by changing it to the
following, which requires that your the Google Repository <a href=
"#install_android_studio_and_the_latest_packages">is the latest
version</a>:
<pre>
compile 'com.google.android.support:wearable:2.0.0-alpha1'
</pre>
</li>
<li>See the following page for setting up a watch or emulator with a
preview system image, in order to begin testing your app: <a href=
"{@docRoot}wear/preview/downloads.html">Download and Test with a
Device</a>
</li>
</ol>
<h3 id="create_a_new_project">
Create a new project
</h3>
<p>
To create a new project for development:
</p>
<ol>
<li>Click <strong>File > New Project</strong> and follow the steps in
the Create New Project wizard until you reach the Target Android Devices
page.
</li>
<li>Optionally, select the <strong>Phone and Tablet</strong> option. If
you plan to use N Preview APIs in a phone app, then the Minimum SDK
option list, select <strong>API N: Android 6.x (N Preview)</strong>.
</li>
<li>Select the <strong>Wear</strong> option, and in the Minimum SDK
option list, select the latest available (<strong>N Preview</strong>)
option. Click <strong>Next</strong> until you exit the Create New Project
wizard.
</li>
<li>In the <code>build.gradle</code> file for the Wear module, in the
<code>dependencies</code> section, update the existing reference to the
Wearable Support Library (perhaps <code>compile
'com.google.android.support:wearable:1.4.0'</code>) to:
<pre>
compile 'com.google.android.support:wearable:2.0.0-alpha1'
</pre>
</li>
<li>See the following page for setting up a watch or emulator with a
preview system image, in order to begin testing your app: <a href=
"{@docRoot}wear/preview/downloads.html">Download and Test with a
Device</a>
</li>
</ol>