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page.title=Debugging over Bluetooth
@jd:body
<div id="tb-wrapper">
<div id="tb">
<!-- Required platform, tools, add-ons, devices, knowledge, etc. -->
<h2>This lesson teaches you to</h2>
<ol>
<li><a href="#SetupDevices">Set Up Devices for Debugging</a></li>
<li><a href="#SetupSession">Set Up a Debugging Session</a></li>
<li><a href="#DebugApp">Debug Your App</a></li>
</ol>
<h2>You should also read</h2>
<ul>
<li><a href="{@docRoot}design/wear/index.html">Android Wear Design Principles</a></li>
</ul>
</div>
</div>
<p>You can debug your wearable over Bluetooth by routing its debug output to the
handheld device that's connected to your development machine.</p>
<h2 id="SetupDevices">Setup Devices for Debugging</h2>
<ol>
<li>Enable USB debugging on the handheld:
<ul>
<li>Open the Settings app and scroll to the bottom.</li>
<li>If it doesn't have a Developer Options setting, tap <b>About Phone</b>
(or <b>About Tablet</b>), scroll to the bottom, and tap the build number 7 times.</li>
<li>Go back and tap <b>Developer Options</b>.</li>
<li>Enable <b>USB debugging</b>.</li>
</ul>
</li>
<li>Enable Bluetooth debugging on the wearable:
<ol>
<li>Tap the home screen twice to bring up the Wear menu. </li>
<li>Scroll to the bottom and tap <b>Settings</b>.</li>
<li>Scroll to the bottom. If there's no <b>Developer Options</b> item, tap <b>About</b>,
and then tap the build number 7 times.</li>
<li>Tap the <b>Developer Options</b> item.</li>
<li>Enable <b>Debug over Bluetooth</b>.</li>
</ol>
</li>
</ol>
<h2 id="SetupSession">Set Up a Debugging Session</h2>
<ol>
<li>On the handheld, open the Android Wear companion app.</li>
<li>Tap the menu on the top right and select <b>Settings</b>.</li>
<li>Enable <b>Debugging over Bluetooth</b>. You should see a tiny status summary appear under the
option:
<pre>
Host: disconnected
Target: connected
</pre>
</li>
<li>Connect the handheld to your machine over USB and run:
<pre>
adb forward tcp:4444 localabstract:/adb-hub
adb connect localhost:4444
</pre>
<p class="note"><b>Note</b>: You can use any available port that you have access to.</p>
</li>
</ol>
<p>
In the Android Wear companion app, you should see the status change to:</p>
<pre>
Host: connected
Target: connected
</pre>
<h2 id="#debug">Debug Your App</h2>
Your wearable should show up as <code>localhost:4444</code> when running <code>adb devices</code>.
To run any <code>adb</code> command, use this format:
<pre>adb -s localhost:4444 <command> </pre>
<p>If there are no other devices connected over TCP/IP (namely emulators), you can shorten the command
to:</p>
<pre>
adb -e <command>
</pre>
<p>For example:</p>
<pre>
adb -e logcat
adb -e shell
adb -e bugreport
</pre>
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