path: root/docs/html/develop/index.jd

fullpage=true
page.title=Develop
header.hide=1
carousel=1
tabbedList=1
@jd:body

<style>
#noplayer-message {
position:absolute;top:50%;left:0;width:100%;z-index:-1;text-align:center;display:none;
}
#player-frame object {z-index:1;}
</style>

<div id="player-wrapper">
  <div id="player-frame">
    <div id="noplayer-message">
      <!-- busted flash player message -->
      Your video is supposed to appear here.<br/>
      Make sure you have the <a href="http://get.adobe.com/flashplayer/" target="_blank">Flash&reg; Player</a>.
    </div>
    <div id="player"><!-- Youtube embeds here... actually replaces this div --></div>
    <a class="close" onclick="$('#player-wrapper').hide()">close video</a>
  </div>
</div>
<div class="wrap">
   <!-- Slideshow -->
   <div class="slideshow-container slideshow-develop col-16">
       <a href="" class="slideshow-prev">Prev</a>
       <a href="" class="slideshow-next">Next</a>
       <div class="frame">
           <ul>
              <li class="item carousel-home">
                 <div class="col-8">
                   <img
src="http://4.bp.blogspot.com/-lfjzgG5Dqrk/UHMThRtpRwI/AAAAAAAABpk/h4d3nsmkgPM/s400/mint.png"
class="play no-shadow no-transform" />
                 </div>
                <div class="content-right col-6">
                  <h2>Building Great Apps for Tablets</h2>
                  <p>Tablets are a growing part of the Android installed base and they offer new opportunities for user engagement and monetization. If you are targeting tablets, check out the <strong>Tablet App Quality Checklist</strong> for tips and techniques on how to deliver a great app experience for tablet users.  </p>
                  <p><a
href="/distribute/googleplay/quality/tablet.html" class="button">Read
more</a></p>
                </div>            
              </li>
               <li class="item carousel-home">
                   <div class="col-8">
                     <img
src="http://1.bp.blogspot.com/-6K1kfNOdek8/T72bXvtTSQI/AAAAAAAABmw/kYzmJt0_328/s1600/google-play-subscriptions.png" class="play"></div>
                   <div class="content-right col-6">
                   <h2>In-app Subscriptions with Trials</h2>
                   <p>You can now set up a <strong>free trial period</strong> for any Google Play in-app subscription, making it easy for users try your subscriber content before automatically converting to a full subscription. Free trials give you a new way to bring users into your products and engage them effectively. </p>
                   <p><a class="button"
href="http://dirkbd.mtv:8809/guide/google/play/billing/billing_subscriptions.html#trials">Read
more</a></p>
                   </div>                
                </li>
               <li class="item carousel-home">
                   <div class="col-8">
                     <img
src="http://2.bp.blogspot.com/-MgN5DnoO5XU/UHYGYzTcAOI/AAAAAAAABs4/jTS7sKkfBcM/s1600/pubsites.png" class="play"></div>
                   <div class="content-right col-6">
                   <p class="title-intro">From the blog:</p>
                   <h2>New Google Play Developer Console</h2>
                   <p>All developers can now try the <strong>new Google Play Developer Console</strong>. With a streamlined publishing flow, new language options, and new user ratings statistics, you’ll have better tools for delivering great Android apps that delight users.</p>
                  <p><a
href="http://android-developers.blogspot.com/2012/10/new-google-play-developer-console.html" class="button">Read
more</a></p>
                   </div>                
                </li>
               <li class="item carousel-home">
                 <div class="col-8">
                   <img
src="http://4.bp.blogspot.com/-g05If_eKKRQ/UAcrVLI-OYI/AAAAAAAAAr8/AWvunVb5S-w/s320/nexus7.png"
class="play no-shadow no-transform" />
                 </div>
                <div class="content-right col-6">
                  <p class="title-intro">From the blog:</p>
                  <h2>Getting Your App Ready for Jelly Bean and Nexus 7</h2>
                  <p>For many people, their first taste of Jelly Bean will be on the beautiful 
                    <strong>Nexus 7 tablet</strong>. Most applications will run just fine on Nexus 7, but who wants 
                    their app to be just fine? Here are some tips for optimizing your app 
                    to make the most of this device.</p>
                  <p><a
href="http://android-developers.blogspot.com/2012/07/getting-your-app-ready-for-jelly-bean.html" class="button">Read
more</a></p>
                </div>            
              </li>
           </ul>
       </div>
   </div>
   <!-- /End slideshow -->
</div>
<div class="wrap">
	<!-- news and feature feed -->
	<div class="feed col-8" style="margin-left:0">
		<ul class="feed-nav">
			<li class="active">DEVELOPER NEWS</li>
			<li>FEATURED DOCS</li>
		</ul>
		<div class="feed-container">
			<div class="feed-frame">
                                <!-- DEVELOPER NEWS -->
          <ul>
            <li><a href="http://android-developers.blogspot.com/2012/10/google-play-seller-support-in-india.html">
              <div class="feed-image" style="background:url('http://4.bp.blogspot.com/-ekT-9XQi0YY/UH7WT2XjSdI/AAAAAAAABwc/fI5QaPi7QEk/s320/india-apps1.png') no-repeat 0 0"></div>
              <h4>Google Play Seller Support in India</h4>
              <p>Developers in India can sell paid applications, in-app products, and subscriptions in Google Play, with monthly payouts to their local bank accounts...</p>
              </a></li>
            <li><a href="http://android-developers.blogspot.com/2012/09/google-play-services-and-oauth-identity.html">
              <div class="feed-image" style="background:url('https://lh4.ggpht.com/7z4NItEg-X21zvFGAarKonk-VaysBYthJ30u1JjaQ0-5fjyHNawnmoNeG--4FCACog=w124') no-repeat 0 0"></div>
              <h4>Google Play services and OAuth Tools</h4>
              <p>The rollout of Google Play services to all Android 2.2+ devices worldwide is now complete, and all of those devices now have new tools for working with OAuth 2.0 tokens...</p>
              </a></li>
            <li><a href="http://android-developers.blogspot.com/2012/08/creating-your-own-spelling-checker.html">
              <div class="feed-image" style="background:url('http://2.bp.blogspot.com/-QKlztEdM1aA/UC1bH6Kv4UI/AAAAAAAAADo/fQS8-EfBYIQ/s320/spell-check-framed-new.png') no-repeat 0 0"></div>
              <h4>Creating A Spelling Checker Service</h4>
              <p>If you are an IME developer, the Spelling Checker framework gives you a great way to provide an even better experience for your users...</p>
              </a></li>
            <li><a href="http://android-developers.blogspot.com/2012/04/accessibility-are-you-serving-all-your.html">
              <div class="feed-image"></div>
              <h4>Accessibility</h4>
              <p>We recently published some new resources to help developers make their Android applications more accessible... </p>
              </a></li>                         
          </ul>
                                <!-- FEATURED DOCS -->
          <ul>
            <li><a href="{@docRoot}distribute/googleplay/spotlight/tablets.html">
              <h4>Tablet Stories</h4>
              <p>More developers are investing in a full tablet experience for their apps. Here are some stories from developers who are seeing real results as they expand their offering to include Android tablets. </p>
              </a></li>
            <li><a href="{@docRoot}distribute/googleplay/quality/core.html">
              <h4>Core App Quality Guidelines</h4>
              <p>This document helps you assess basic aspects of quality in your app through a compact set of core app quality criteria and associated tests. All Android apps should meet these criteria.</p>
              </a></li>
            <li><a href="{@docRoot}guide/topics/ui/notifiers/notifications.html">
              <h4>Updated Notifications API Guide</h4>
              <p>The Notifications API Guide is updated to include information about building Jelly Bean rich notifications using the Support Library APIs for backwards-compatibility.</p>
              </a></li>
            <li><a href="{@docRoot}guide/topics/ui/dialogs.html">
              <h4>Updated Dialogs API Guide</h4>
              <p>The Dialogs API Guide now shows to use DialogFragment class, a simpler way to manage your dialogs and embed them in alternative layouts.</p>
              </a></li>                                      
          </ul>
			</div>
		</div>
	</div>	<!-- /news and feature feed -->
	<!-- video feed -->
	<div class="feed col-8" style="margin-right:0">
		<ul class="feed-nav">
			<li class="active">DEVELOPERS LIVE</li>
			<li>VIDEO PLAYLISTS</li>
		</ul>
		<div class="feed-container">
			<div class="feed-frame">
              <ul id="DevelopersLive">
              </ul>
              <ul id="VideoPlaylists">
              </ul>
			</div>
		</div>
	</div>
	<!-- /video feed -->
</div>

<br class="clearfix"/>

      
      
      
      
      
      
      
      

<script src="//swfobject.googlecode.com/svn/trunk/swfobject/swfobject.js" type="text/javascript"></script>
<script type="text/javascript">

/* Load a video into the player box.
 * @param id        The YouTube video ID
 * @param title     The video title to display in the player box (character escaped)
 * @param autoplay  Whether to automatically play the video
 */
function loadVideo(id, title, autoplay) {
  swfobject.embedSWF('//www.youtube.com/v/' + id + '&rel=1&border=0&fs=1&autoplay=' +
      (autoplay?1:0), 'player', '525', '330', '9.0.0', false, false, {allowfullscreen: 'true'});
  $("#videoPlayerTitle").html("<h2>" + unescape(title) + "</h2>");
  $("#player-wrapper").show();
  setTimeout(function(){$('#noplayer-message').show()}, 2000);
}

/* Draw all videos from a playlist into a 'videoPreviews' list
 * @param data  The feed data returned from the youtube request
 */
function renderVideoPlaylists(data) {
  var MAX_LIST_DESC_LENGTH = 130; // the length at which we will trim the description
  var MAX_VIDEO_DESC_LENGTH = 100; // the length at which we will trim the description
  var MAX_LIST_LENGTH = 4; // number of videos to put in the list
  var feed = data.feed;
  var entries = feed.entry || [];
  var playlistId = feed.yt$playlistId.$t;

  var $ulVideos = $('<ul style="display:none"/>');
  var summary = feed.media$group.media$description != null ? feed.media$group.media$description.$t : feed.subtitle.$t;
  
  var $liPlaylist = $('<li class="playlist"></li>');
  var $aPlaylist = $('<a href="" onclick="togglePlaylist(this);return false;"></a>');
  $liPlaylist.append($aPlaylist);
  $aPlaylist.append('<h4>' + feed.title.$t + '</h4>');
  
  var playlistDescription = summary.substr(0, MAX_LIST_DESC_LENGTH);
  playlistDescription += playlistDescription.length == MAX_LIST_DESC_LENGTH ? "..." : ""; // add ellipsis if we've chopped the description
  $aPlaylist.append('<p>' +  playlistDescription + '</p>');
  
  // Loop through each entry (each video) and add it to the 'videoPreviews' list
  var length = feed.entry.length < MAX_LIST_LENGTH ? feed.entry.length : MAX_LIST_LENGTH; // max of 4 videos per list
  for (var i = 0; i < length; i++) {
    var entry = entries[i];

    var title = entry.title.$t;
    var id = entry.media$group.yt$videoid.$t;
    var thumbUrl = entry.media$group.media$thumbnail[0].url;
    var fullDescription = entry.media$group.media$description.$t;
    var playerUrl = entry.media$group.media$content[0].url;

    var shortDescription = fullDescription.substr(0, MAX_VIDEO_DESC_LENGTH);
    shortDescription += shortDescription.length == MAX_VIDEO_DESC_LENGTH ? "..." : ""; // add ellipsis if we've chopped the description

    var img = $('<img src="' + thumbUrl + '" width="60" height="45"/>');
    var a = $('<a href="#" onclick="loadVideo(\'' + id + '\',\'' + escape(title) + '\',true); return false;" />');
    var pShortDescription = $('<p>' + shortDescription + '</p>');
    var h5Title = "<h5>" + title + "</h5>";
    var li = $('<li class="playlist-video"/>');

    li.append(a);
    a.append(img).append(h5Title).append(pShortDescription);

    $ulVideos.append(li);
    
    // use the first entry's thumbnail for the playlist
    if (i == 0) {
      $aPlaylist.prepend('<img src="' + thumbUrl + '" width="120" height="90"/>');
    }
  }
  
  if (feed.entry.length > MAX_LIST_LENGTH) {
    // add item to go to youtube for playlist
    $ulVideos.append('<li class="more"><a href="//www.youtube.com/playlist?list=PL' + playlistId + '">More &raquo;</a></li>');
  }

  $liPlaylist.append($ulVideos);
  $('#VideoPlaylists').append($liPlaylist);
}


function renderDevelopersLivePlaylist(data) {

  var MAX_DESC_LENGTH = 125; // the length at which we will trim the description
  var feed = data.feed;
  var entries = feed.entry || [];
  var playlistId = feed.yt$playlistId.$t;

  var ul = $('#DevelopersLive');

  // Loop through each entry (each video) and add it to the '#DevelopersLive' list
  for (var i = 0; i < 4; i++) {
    var entry = entries[i];

    var title = entry.title.$t;
    var id = entry.media$group.yt$videoid.$t;
    var thumbUrl = entry.media$group.media$thumbnail[0].url;
    var fullDescription = entry.media$group.media$description.$t;
    var playerUrl = entry.media$group.media$content[0].url;
    var shortDescription = fullDescription.substr(0, MAX_DESC_LENGTH);
    shortDescription += shortDescription.length == MAX_DESC_LENGTH ? "..." : ""; // add ellipsis if we've chopped the description

    var img = $('<img src="' + thumbUrl + '" width="120" height="90"/>');
    var a = $('<a href="#" onclick="loadVideo(\'' + id + '\',\'' + escape(title) + '\',true); return false;" />');
    var pShortDescription = $('<p>' + shortDescription + '</p>');
    var h4Title = "<h4>" + title + "</h4>";
    var li = $('<li/>');

    li.append(a);
    a.append(img).append(h4Title).append(pShortDescription);

    ul.append(li);
  }
}



/* This 'playlist' object defines the playlist IDs for each tab.
 * Each name inside 'playlist' corresponds to class names for the tab that the playlists belong to (eg: "googleioTab" and "googleioBox" divs).
 * Each string in 'ids' is the ID of a YouTube playlist that belongs in the corresponding tab.
 */
var playlists = {
  'googleio' : {
    'ids': ["4C6BCDE45E05F49E"]
  },
  'fridayreview' : {
    'ids': ["B7B9B23D864A55C3"]
  },
  'officehours' : {
    'ids': ["7383D9AADA6E6D55"]
  },
  'about' : {
    'ids': ["D7C64411AF40DEA5"]
  }
};

/* Request the playlist feeds from YouTube */
function showVideosPlaylists() {
  for (var x in playlists) {
    var ids = playlists[x].ids;
    for (var i in ids) {
      var script = "<script type='text/javascript' src='//gdata.youtube.com/feeds/api/playlists/"
                    + ids[i] +
                    "?v=2&alt=json-in-script&max-results=50&callback=renderVideoPlaylists&orderby=published'><\/script>";
      $("body").append(script);
    }
  }
}


/* Request the playlist feeds from YouTube */
function showDevelopersLivePlaylist() {
  var playlistId = "B7B9B23D864A55C3"; /* The Friday Review */
  var script = "<script type='text/javascript' src='//gdata.youtube.com/feeds/api/playlists/"
                + playlistId +
                "?v=2&alt=json-in-script&max-results=10&callback=renderDevelopersLivePlaylist&orderby=published'><\/script > ";
  $("body").append(script);
}


function togglePlaylist(listLink) {
  var $list = $(listLink).parent();
  var $ul = $list.find('ul');
  if ($ul.is(":visible")) {
    $ul.slideUp(function() {
      $list.css({'height':'inherit'});
    });
  } else {
    $list.closest('ul').find('li.playlist').find('ul').slideUp();
    $ul.slideDown();
    $list.css({'height':'auto'});
  }
}

showDevelopersLivePlaylist();
showVideosPlaylists();
</script>