page.title=Connecting Devices Wirelessly
page.tags=wifi,network,wireless

trainingnavtop=true
startpage=true

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<h2>Dependencies and prerequisites</h2>
<ul>
  <li>Android 4.1 or higher</li>
</ul>

<h2>You should also read</h2>
<ul>
  <li><a href="{@docRoot}guide/topics/connectivity/wifip2p.html">Wi-Fi P2P</a></li>
</ul>

</div>
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<a class="notice-developers-video wide" href="http://www.youtube.com/watch?v=oi_ARV_I8Dc">
<div>
    <h3>Video</h3>
    <p>DevBytes: Network Service Discovery</p>
</div>
</a>


<p>Besides enabling communication with the cloud, Android's wireless APIs also
enable communication with other devices on the same local network, and even
devices which are not on a network, but are physically nearby.  The addition of
Network Service Discovery (NSD) takes this further by allowing an application to
seek out a nearby device running services with which it can communicate.
Integrating this functionality into your application helps you provide a wide range
of features, such as playing games with users in the same room, pulling
images from a networked NSD-enabled webcam, or remotely logging into
other machines on the same network.</p>
<p>This class describes the key APIs for finding and
connecting to other devices from your application.  Specifically, it
describes the NSD API for discovering available services and the Wi-Fi
Peer-to-Peer (P2P) API for doing peer-to-peer wireless connections.  This class also
shows you how to use NSD and Wi-Fi P2P in
combination to detect the services offered by a device and connect to the
device when neither device is connected to a network.
</p>
<h2>Lessons</h2>

<dl>
  <dt><strong><a href="nsd.html">Using Network Service Discovery</a></strong></dt>
  <dd>Learn how to broadcast services offered by your own application, discover
  services offered on the local network, and use NSD to determine the connection
  details for the service you wish to connect to.</dd>
  <dt><strong><a href="wifi-direct.html">Creating P2P Connections with Wi-Fi</a></strong></dt>
  <dd>Learn how to fetch a list of nearby peer devices, create an access point
  for legacy devices, and connect to other devices capable of Wi-Fi P2P
  connections.</dd>
  <dt><strong><a href="nsd-wifi-direct.html">Using Wi-Fi P2P for Service
      Discovery</a></strong></dt>
  <dd>Learn how to discover services published by nearby devices without being
  on the same network, using Wi-Fi P2P.</dd>
</dl>