Blame - docs/html/develop/index.jd - platform_frameworks_base

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<h2>In-app Subscriptions with Trials</h2>

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<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>

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<p><a class="button"

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href="{@docRoot}google/play/billing/v2/billing_subscriptions.html#trials">Read

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more</a></p>

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</div>

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</li>

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</div>

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</div>

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<li class="active">DEVELOPER NEWS</li>

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<li>FEATURED DOCS</li>

</ul>

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<ul>

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<h4>New Ways to Optimize Your Business in Google Play</h4>

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<p>Many of you have invested in making great tablet experiences for your users, and we want to ensure that that work pays off...</p>

</a></li>

<h4>Android Studio: An IDE built for Android</h4>

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<p>To develop Android Studio, we cooperated with JetBrains, creators of one of the most advanced Java IDEs available today...</p>

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</a></li>

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<h4>Verifying Back-End Calls from Android Apps</h4>

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<p>You can take advantage of the auth APIs in Google Play services to let your back end know which app is calling and for which user....</p>

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</a></li>

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Dirk Dougherty

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<h4>Daydream: Interactive Screen Savers</h4>

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<p>Daydream is an interactive screen-saver mode introduced in Android 4.2. Learn how to add Daydreams to your apps...</p>

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</a></li>

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</ul>

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<ul>

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<h4>Tablet Stories</h4>

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<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>

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</a></li>

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<h4>Core App Quality Guidelines</h4>

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<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>

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</a></li>

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<h4>Updated Notifications API Guide</h4>

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<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>

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</a></li>

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<h4>Updated Dialogs API Guide</h4>

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<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>

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</a></li>

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</ul>

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</div>

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</div>

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</div>

<li class="active">DEVELOPERS LIVE</li>

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<li>VIDEO PLAYLISTS</li>

</ul>

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</ul>

</ul>

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</div>

</div>

</div>

</div>

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/* Load a video into the player box.

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* @param id The YouTube video ID

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* @param title The video title to display in the player box (character escaped)

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* @param autoplay Whether to automatically play the video

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*/

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function loadVideo(id, title, autoplay) {

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swfobject.embedSWF('//www.youtube.com/v/' + id + '&rel=1&border=0&fs=1&autoplay=' +

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(autoplay?1:0), 'player', '525', '330', '9.0.0', false, false, {allowfullscreen: 'true'});

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$("#videoPlayerTitle").html("<h2>" + unescape(title) + "</h2>");

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$("#player-wrapper").show();

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setTimeout(function(){$('#noplayer-message').show()}, 2000);

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}

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/* Draw all videos from a playlist into a 'videoPreviews' list

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* @param data The feed data returned from the youtube request

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*/

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function renderVideoPlaylists(data) {

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var MAX_LIST_DESC_LENGTH = 130; // the length at which we will trim the description

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var MAX_VIDEO_DESC_LENGTH = 100; // the length at which we will trim the description

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var MAX_LIST_LENGTH = 4; // number of videos to put in the list

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var feed = data.feed;

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var entries = feed.entry || [];

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var playlistId = feed.yt$playlistId.$t;

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var $ulVideos = $('<ul style="display:none"/>');

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var summary = feed.media$group.media$description != null ? feed.media$group.media$description.$t : feed.subtitle.$t;

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var $liPlaylist = $('<li class="playlist"></li>');

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var $aPlaylist = $('<a href="" onclick="togglePlaylist(this);return false;"></a>');

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$liPlaylist.append($aPlaylist);

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$aPlaylist.append('<h4>' + feed.title.$t + '</h4>');

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var playlistDescription = summary.substr(0, MAX_LIST_DESC_LENGTH);

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playlistDescription += playlistDescription.length == MAX_LIST_DESC_LENGTH ? "..." : ""; // add ellipsis if we've chopped the description

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$aPlaylist.append('<p>' + playlistDescription + '</p>');

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// Loop through each entry (each video) and add it to the 'videoPreviews' list

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var length = feed.entry.length < MAX_LIST_LENGTH ? feed.entry.length : MAX_LIST_LENGTH; // max of 4 videos per list

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for (var i = 0; i < length; i++) {

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var entry = entries[i];

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var title = entry.title.$t;

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var id = entry.media$group.yt$videoid.$t;

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var thumbUrl = entry.media$group.media$thumbnail[0].url;

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var fullDescription = entry.media$group.media$description.$t;

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var playerUrl = entry.media$group.media$content[0].url;

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var shortDescription = fullDescription.substr(0, MAX_VIDEO_DESC_LENGTH);

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shortDescription += shortDescription.length == MAX_VIDEO_DESC_LENGTH ? "..." : ""; // add ellipsis if we've chopped the description

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var img = $('<img src="' + thumbUrl + '" width="60" height="45"/>');

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var a = $('<a href="#" onclick="loadVideo(\'' + id + '\',\'' + escape(title) + '\',true); return false;" />');

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var pShortDescription = $('<p>' + shortDescription + '</p>');

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var h5Title = "<h5>" + title + "</h5>";

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var li = $('<li class="playlist-video"/>');

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li.append(a);

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

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$ulVideos.append(li);

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// use the first entry's thumbnail for the playlist

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if (i == 0) {

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$aPlaylist.prepend('<img src="' + thumbUrl + '" width="120" height="90"/>');

}

}

if (feed.entry.length > MAX_LIST_LENGTH) {

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// add item to go to youtube for playlist

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$ulVideos.append('<li class="more"><a href="//www.youtube.com/playlist?list=' + playlistId + '">More »</a></li>');

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}

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$liPlaylist.append($ulVideos);

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

}

function renderDevelopersLivePlaylist(data) {

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var MAX_DESC_LENGTH = 125; // the length at which we will trim the description

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var feed = data.feed;

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var entries = feed.entry || [];

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var playlistId = feed.yt$playlistId.$t;

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var ul = $('#DevelopersLive');

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// Loop through each entry (each video) and add it to the '#DevelopersLive' list

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for (var i = 0; i < 4; i++) {

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var entry = entries[i];

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var title = entry.title.$t;

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var id = entry.media$group.yt$videoid.$t;

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var thumbUrl = entry.media$group.media$thumbnail[0].url;

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var fullDescription = entry.media$group.media$description.$t;

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var playerUrl = entry.media$group.media$content[0].url;

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var shortDescription = fullDescription.substr(0, MAX_DESC_LENGTH);

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shortDescription += shortDescription.length == MAX_DESC_LENGTH ? "..." : ""; // add ellipsis if we've chopped the description

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var img = $('<img src="' + thumbUrl + '" width="120" height="90"/>');

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var a = $('<a href="#" onclick="loadVideo(\'' + id + '\',\'' + escape(title) + '\',true); return false;" />');

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var pShortDescription = $('<p>' + shortDescription + '</p>');

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var h4Title = "<h4>" + title + "</h4>";

var li = $('<li/>');

li.append(a);

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

ul.append(li);

}

}

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/* This 'playlist' object defines the playlist IDs for each tab.

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* Each name inside 'playlist' corresponds to class names for the tab that the playlists belong to (eg: "googleioTab" and "googleioBox" divs).

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* Each string in 'ids' is the ID of a YouTube playlist that belongs in the corresponding tab.

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*/

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var playlists = {

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'designinaction' : {

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'ids': ["PLWz5rJ2EKKc8j2B95zGMb8muZvrIy-wcF"]

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},

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'bizdevbytes' : {

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'ids': ["PLWz5rJ2EKKc8-Osr0TuHyTMEhKV0xJ6ql"]

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},

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'thisweek' : {

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'ids': ["PLWz5rJ2EKKc9Wam5jE-9oY8l6RpeAx-XM"]

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},

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'googleio' : {

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'ids': ["PLWz5rJ2EKKc9WGUwq2gQ-coU3fSyexgOx"]

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}

};

/* Request the playlist feeds from YouTube */

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function showVideosPlaylists() {

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for (var x in playlists) {

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var ids = playlists[x].ids;

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for (var i in ids) {

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var script = "<script type='text/javascript' src='//gdata.youtube.com/feeds/api/playlists/"

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+ ids[i] +

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"?v=2&alt=json-in-script&max-results=50&callback=renderVideoPlaylists&orderby=position'><\/script>";

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$("body").append(script);

}

}

}

/* Request the playlist feeds from YouTube */

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function showDevelopersLivePlaylist() {

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var playlistId = "PLWz5rJ2EKKc_XOgcRukSoKKjewFJZrKV0"; /* DevBytes */

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var script = "<script type='text/javascript' src='//gdata.youtube.com/feeds/api/playlists/"

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+ playlistId +

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"?v=2&alt=json-in-script&max-results=10&callback=renderDevelopersLivePlaylist&orderby=position'><\/script > ";

Scott Main