3da5ab74b9
#minor-release PiperOrigin-RevId: 455361427 (cherry picked from commit 87420fcdabbe362d571edfd09f3128b6bb3ae873)
707 lines
33 KiB
HTML
707 lines
33 KiB
HTML
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<div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">com.google.android.exoplayer2</a></div>
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<h2 title="Class Tracks.Group" class="title">Class Tracks.Group</h2>
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<li>com.google.android.exoplayer2.Tracks.Group</li>
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<dl>
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<dt>Enclosing class:</dt>
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<dd><a href="Tracks.html" title="class in com.google.android.exoplayer2">Tracks</a></dd>
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</dl>
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<pre>public static final class <span class="typeNameLabel">Tracks.Group</span>
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extends <a href="https://developer.android.com/reference/java/lang/Object.html" title="class or interface in java.lang" class="externalLink" target="_top">Object</a>
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implements <a href="Bundleable.html" title="interface in com.google.android.exoplayer2">Bundleable</a></pre>
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<div class="block">Information about a single group of tracks, including the underlying <a href="source/TrackGroup.html" title="class in com.google.android.exoplayer2.source"><code>TrackGroup</code></a>, the
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level to which each track is supported by the player, and whether any of the tracks are
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selected.</div>
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<h3>Nested classes/interfaces inherited from interface com.google.android.exoplayer2.<a href="Bundleable.html" title="interface in com.google.android.exoplayer2">Bundleable</a></h3>
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<code><a href="Bundleable.Creator.html" title="interface in com.google.android.exoplayer2">Bundleable.Creator</a><<a href="Bundleable.Creator.html" title="type parameter in Bundleable.Creator">T</a> extends <a href="Bundleable.html" title="interface in com.google.android.exoplayer2">Bundleable</a>></code></li>
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<table class="memberSummary">
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<caption><span>Fields</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colSecond" scope="col">Field</th>
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<th class="colLast" scope="col">Description</th>
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<tr class="altColor">
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<td class="colFirst"><code>static <a href="Bundleable.Creator.html" title="interface in com.google.android.exoplayer2">Bundleable.Creator</a><<a href="Tracks.Group.html" title="class in com.google.android.exoplayer2">Tracks.Group</a>></code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#CREATOR">CREATOR</a></span></code></th>
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<td class="colLast">
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<div class="block">Object that can restore a group of tracks from a <a href="https://developer.android.com/reference/android/os/Bundle.html" title="class or interface in android.os" class="externalLink" target="_top"><code>Bundle</code></a>.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#length">length</a></span></code></th>
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<td class="colLast">
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<div class="block">The number of tracks in the group.</div>
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</td>
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</tr>
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</table>
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</li>
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</ul>
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<h3>Constructor Summary</h3>
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<table class="memberSummary">
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<caption><span>Constructors</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colFirst" scope="col">Constructor</th>
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<th class="colLast" scope="col">Description</th>
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</tr>
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<tr class="altColor">
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(com.google.android.exoplayer2.source.TrackGroup,boolean,@com.google.android.exoplayer2.C.FormatSupportint%5B%5D,boolean%5B%5D)">Group</a></span>​(<a href="source/TrackGroup.html" title="class in com.google.android.exoplayer2.source">TrackGroup</a> mediaTrackGroup,
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boolean adaptiveSupported,
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@com.google.android.exoplayer2.C.FormatSupport int[] trackSupport,
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boolean[] trackSelected)</code></th>
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<td class="colLast">
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<div class="block">Constructs an instance.</div>
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</td>
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<h3>Method Summary</h3>
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<table class="memberSummary">
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colSecond" scope="col">Method</th>
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<th class="colLast" scope="col">Description</th>
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<tr id="i0" class="altColor">
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<td class="colFirst"><code>boolean</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#equals(java.lang.Object)">equals</a></span>​(<a href="https://developer.android.com/reference/java/lang/Object.html" title="class or interface in java.lang" class="externalLink" target="_top">Object</a> other)</code></th>
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<td class="colLast"> </td>
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</tr>
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<tr id="i1" class="rowColor">
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<td class="colFirst"><code><a href="source/TrackGroup.html" title="class in com.google.android.exoplayer2.source">TrackGroup</a></code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMediaTrackGroup()">getMediaTrackGroup</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Returns the underlying <a href="source/TrackGroup.html" title="class in com.google.android.exoplayer2.source"><code>TrackGroup</code></a> defined by the media.</div>
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</td>
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</tr>
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<tr id="i2" class="altColor">
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<td class="colFirst"><code><a href="Format.html" title="class in com.google.android.exoplayer2">Format</a></code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTrackFormat(int)">getTrackFormat</a></span>​(int trackIndex)</code></th>
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<td class="colLast">
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<div class="block">Returns the <a href="Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a> for a specified track.</div>
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</td>
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</tr>
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<tr id="i3" class="rowColor">
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<td class="colFirst"><code>@com.google.android.exoplayer2.C.FormatSupport int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTrackSupport(int)">getTrackSupport</a></span>​(int trackIndex)</code></th>
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<td class="colLast">
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<div class="block">Returns the level of support for a specified track.</div>
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</td>
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</tr>
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<tr id="i4" class="altColor">
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<td class="colFirst"><code>@com.google.android.exoplayer2.C.TrackType int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getType()">getType</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Returns the <a href="C.TrackType.html" title="annotation in com.google.android.exoplayer2"><code>C.TrackType</code></a> of the group.</div>
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</td>
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</tr>
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<tr id="i5" class="rowColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hashCode()">hashCode</a></span>()</code></th>
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<td class="colLast"> </td>
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</tr>
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<tr id="i6" class="altColor">
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<td class="colFirst"><code>boolean</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isAdaptiveSupported()">isAdaptiveSupported</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Returns whether adaptive selections containing more than one track are supported.</div>
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</td>
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</tr>
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<tr id="i7" class="rowColor">
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<td class="colFirst"><code>boolean</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isSelected()">isSelected</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Returns whether at least one track in the group is selected for playback.</div>
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</td>
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</tr>
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<tr id="i8" class="altColor">
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<td class="colFirst"><code>boolean</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isSupported()">isSupported</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Returns whether at least one track in the group is supported for playback, without exceeding
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the advertised capabilities of the device.</div>
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</td>
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</tr>
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<tr id="i9" class="rowColor">
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<td class="colFirst"><code>boolean</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isSupported(boolean)">isSupported</a></span>​(boolean allowExceedsCapabilities)</code></th>
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<td class="colLast">
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<div class="block">Returns whether at least one track in the group is supported for playback.</div>
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</td>
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</tr>
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<tr id="i10" class="altColor">
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<td class="colFirst"><code>boolean</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isTrackSelected(int)">isTrackSelected</a></span>​(int trackIndex)</code></th>
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<td class="colLast">
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<div class="block">Returns whether a specified track is selected for playback.</div>
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</td>
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</tr>
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<tr id="i11" class="rowColor">
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<td class="colFirst"><code>boolean</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isTrackSupported(int)">isTrackSupported</a></span>​(int trackIndex)</code></th>
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<td class="colLast">
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<div class="block">Returns whether a specified track is supported for playback, without exceeding the advertised
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capabilities of the device.</div>
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</td>
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</tr>
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<tr id="i12" class="altColor">
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<td class="colFirst"><code>boolean</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isTrackSupported(int,boolean)">isTrackSupported</a></span>​(int trackIndex,
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boolean allowExceedsCapabilities)</code></th>
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<td class="colLast">
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<div class="block">Returns whether a specified track is supported for playback.</div>
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</td>
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</tr>
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<tr id="i13" class="rowColor">
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<td class="colFirst"><code><a href="https://developer.android.com/reference/android/os/Bundle.html" title="class or interface in android.os" class="externalLink" target="_top">Bundle</a></code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toBundle()">toBundle</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Returns a <a href="https://developer.android.com/reference/android/os/Bundle.html" title="class or interface in android.os" class="externalLink" target="_top"><code>Bundle</code></a> representing the information stored in this object.</div>
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<h3>Methods inherited from class java.lang.<a href="https://developer.android.com/reference/java/lang/Object.html" title="class or interface in java.lang" class="externalLink" target="_top">Object</a></h3>
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<code><a href="https://developer.android.com/reference/java/lang/Object.html#clone()" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink">toString</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink" target="_top">wait</a></code></li>
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<h4>length</h4>
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<pre>public final int length</pre>
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<div class="block">The number of tracks in the group.</div>
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<a id="CREATOR">
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<h4>CREATOR</h4>
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<pre>public static final <a href="Bundleable.Creator.html" title="interface in com.google.android.exoplayer2">Bundleable.Creator</a><<a href="Tracks.Group.html" title="class in com.google.android.exoplayer2">Tracks.Group</a>> CREATOR</pre>
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<div class="block">Object that can restore a group of tracks from a <a href="https://developer.android.com/reference/android/os/Bundle.html" title="class or interface in android.os" class="externalLink" target="_top"><code>Bundle</code></a>.</div>
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<h3>Constructor Detail</h3>
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<a id="<init>(com.google.android.exoplayer2.source.TrackGroup,boolean,@com.google.android.exoplayer2.C.FormatSupportint[],boolean[])">
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<h4>Group</h4>
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<pre>public Group​(<a href="source/TrackGroup.html" title="class in com.google.android.exoplayer2.source">TrackGroup</a> mediaTrackGroup,
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boolean adaptiveSupported,
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<a href="C.FormatSupport.html" title="annotation in com.google.android.exoplayer2">@FormatSupport</a>
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@com.google.android.exoplayer2.C.FormatSupport int[] trackSupport,
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boolean[] trackSelected)</pre>
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<div class="block">Constructs an instance.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>mediaTrackGroup</code> - The underlying <a href="source/TrackGroup.html" title="class in com.google.android.exoplayer2.source"><code>TrackGroup</code></a> defined by the media.</dd>
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<dd><code>adaptiveSupported</code> - Whether the player supports adaptive selections containing more than
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one track in the group.</dd>
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<dd><code>trackSupport</code> - The <a href="C.FormatSupport.html" title="annotation in com.google.android.exoplayer2"><code>C.FormatSupport</code></a> of each track in the group.</dd>
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<dd><code>trackSelected</code> - Whether each track in the <code>trackGroup</code> is selected.</dd>
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</dl>
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<h3>Method Detail</h3>
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<a id="getMediaTrackGroup()">
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<h4>getMediaTrackGroup</h4>
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<pre class="methodSignature">public <a href="source/TrackGroup.html" title="class in com.google.android.exoplayer2.source">TrackGroup</a> getMediaTrackGroup()</pre>
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<div class="block">Returns the underlying <a href="source/TrackGroup.html" title="class in com.google.android.exoplayer2.source"><code>TrackGroup</code></a> defined by the media.
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<p>Unlike this class, <a href="source/TrackGroup.html" title="class in com.google.android.exoplayer2.source"><code>TrackGroup</code></a> only contains information defined by the media
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itself, and does not contain runtime information such as which tracks are supported and
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currently selected. This makes it suitable for use as a <code>key</code> in certain <code>(key,
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value)</code> data structures.</div>
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</li>
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</ul>
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<a id="getTrackFormat(int)">
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<h4>getTrackFormat</h4>
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<pre class="methodSignature">public <a href="Format.html" title="class in com.google.android.exoplayer2">Format</a> getTrackFormat​(int trackIndex)</pre>
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<div class="block">Returns the <a href="Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a> for a specified track.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>trackIndex</code> - The index of the track in the group.</dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>The <a href="Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a> of the track.</dd>
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<a id="getTrackSupport(int)">
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<h4>getTrackSupport</h4>
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<pre class="methodSignature"><a href="C.FormatSupport.html" title="annotation in com.google.android.exoplayer2">@FormatSupport</a>
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public @com.google.android.exoplayer2.C.FormatSupport int getTrackSupport​(int trackIndex)</pre>
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<div class="block">Returns the level of support for a specified track.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>trackIndex</code> - The index of the track in the group.</dd>
|
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>The <a href="C.FormatSupport.html" title="annotation in com.google.android.exoplayer2"><code>C.FormatSupport</code></a> of the track.</dd>
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</dl>
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<h4>isTrackSupported</h4>
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<pre class="methodSignature">public boolean isTrackSupported​(int trackIndex)</pre>
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<div class="block">Returns whether a specified track is supported for playback, without exceeding the advertised
|
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capabilities of the device. Equivalent to <code>isTrackSupported(trackIndex, false)</code>.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
|
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<dd><code>trackIndex</code> - The index of the track in the group.</dd>
|
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<dt><span class="returnLabel">Returns:</span></dt>
|
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<dd>True if the track's format can be played, false otherwise.</dd>
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</dl>
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<h4>isTrackSupported</h4>
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<pre class="methodSignature">public boolean isTrackSupported​(int trackIndex,
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boolean allowExceedsCapabilities)</pre>
|
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<div class="block">Returns whether a specified track is supported for playback.</div>
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<dl>
|
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<dt><span class="paramLabel">Parameters:</span></dt>
|
|
<dd><code>trackIndex</code> - The index of the track in the group.</dd>
|
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<dd><code>allowExceedsCapabilities</code> - Whether to consider the track as supported if it has a
|
|
supported <a href="Format.html#sampleMimeType"><code>MIME type</code></a>, but otherwise exceeds the advertised
|
|
capabilities of the device. For example, a video track for which there's a corresponding
|
|
decoder whose maximum advertised resolution is exceeded by the resolution of the track.
|
|
Such tracks may be playable in some cases.</dd>
|
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<dt><span class="returnLabel">Returns:</span></dt>
|
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<dd>True if the track's format can be played, false otherwise.</dd>
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</dl>
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<pre class="methodSignature">public boolean isSelected()</pre>
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<div class="block">Returns whether at least one track in the group is selected for playback.</div>
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</li>
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</ul>
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<a id="isAdaptiveSupported()">
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<pre class="methodSignature">public boolean isAdaptiveSupported()</pre>
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<div class="block">Returns whether adaptive selections containing more than one track are supported.</div>
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</li>
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</ul>
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<a id="isSupported()">
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<h4>isSupported</h4>
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<pre class="methodSignature">public boolean isSupported()</pre>
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<div class="block">Returns whether at least one track in the group is supported for playback, without exceeding
|
|
the advertised capabilities of the device. Equivalent to <code>isSupported(false)</code>.</div>
|
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</li>
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</ul>
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<a id="isSupported(boolean)">
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<h4>isSupported</h4>
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<pre class="methodSignature">public boolean isSupported​(boolean allowExceedsCapabilities)</pre>
|
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<div class="block">Returns whether at least one track in the group is supported for playback.</div>
|
|
<dl>
|
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
|
<dd><code>allowExceedsCapabilities</code> - Whether to consider a track as supported if it has a
|
|
supported <a href="Format.html#sampleMimeType"><code>MIME type</code></a>, but otherwise exceeds the advertised
|
|
capabilities of the device. For example, a video track for which there's a corresponding
|
|
decoder whose maximum advertised resolution is exceeded by the resolution of the track.
|
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Such tracks may be playable in some cases.</dd>
|
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</dl>
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</li>
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</ul>
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<a id="isTrackSelected(int)">
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<h4>isTrackSelected</h4>
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<pre class="methodSignature">public boolean isTrackSelected​(int trackIndex)</pre>
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<div class="block">Returns whether a specified track is selected for playback.
|
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|
|
<p>Note that multiple tracks in the group may be selected. This is common in adaptive
|
|
streaming, where tracks of different qualities are selected and the player switches between
|
|
them during playback (e.g., based on the available network bandwidth).
|
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|
|
<p>This class doesn't provide a way to determine which of the selected tracks is currently
|
|
playing, however some player implementations have ways of getting such information. For
|
|
example, ExoPlayer provides this information via <code>ExoTrackSelection.getSelectedFormat</code>.</div>
|
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<dl>
|
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<dt><span class="paramLabel">Parameters:</span></dt>
|
|
<dd><code>trackIndex</code> - The index of the track in the group.</dd>
|
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<dt><span class="returnLabel">Returns:</span></dt>
|
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<dd>True if the track is selected, false otherwise.</dd>
|
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</dl>
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</ul>
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<a id="getType()">
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<h4>getType</h4>
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<pre class="methodSignature">public @com.google.android.exoplayer2.C.TrackType int getType()</pre>
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<div class="block">Returns the <a href="C.TrackType.html" title="annotation in com.google.android.exoplayer2"><code>C.TrackType</code></a> of the group.</div>
|
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</li>
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</ul>
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<a id="equals(java.lang.Object)">
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<h4>equals</h4>
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<pre class="methodSignature">public boolean equals​(@Nullable
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<a href="https://developer.android.com/reference/java/lang/Object.html" title="class or interface in java.lang" class="externalLink" target="_top">Object</a> other)</pre>
|
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<dl>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
|
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<dd><code><a href="https://developer.android.com/reference/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink">equals</a></code> in class <code><a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_top">Object</a></code></dd>
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<h4>hashCode</h4>
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<pre class="methodSignature">public int hashCode()</pre>
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<dl>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
|
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<dd><code><a href="https://developer.android.com/reference/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="externalLink">hashCode</a></code> in class <code><a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_top">Object</a></code></dd>
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</dl>
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</li>
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</ul>
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<a id="toBundle()">
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<h4>toBundle</h4>
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<pre class="methodSignature">public <a href="https://developer.android.com/reference/android/os/Bundle.html" title="class or interface in android.os" class="externalLink" target="_top">Bundle</a> toBundle()</pre>
|
|
<div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="Bundleable.html#toBundle()">Bundleable</a></code></span></div>
|
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<div class="block">Returns a <a href="https://developer.android.com/reference/android/os/Bundle.html" title="class or interface in android.os" class="externalLink" target="_top"><code>Bundle</code></a> representing the information stored in this object.</div>
|
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<dl>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
|
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<dd><code><a href="Bundleable.html#toBundle()">toBundle</a></code> in interface <code><a href="Bundleable.html" title="interface in com.google.android.exoplayer2">Bundleable</a></code></dd>
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</dl>
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</li>
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</ul>
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</li>
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</ul>
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</section>
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