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<div class="subTitle">com.google.android.exoplayer</div>
<h2 title="Class DefaultLoadControl" class="title">Class DefaultLoadControl</h2>
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<dd><a href="../../../../com/google/android/exoplayer/LoadControl.html" title="interface in com.google.android.exoplayer">LoadControl</a></dd>
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<pre>public final class <span class="typeNameLabel">DefaultLoadControl</span>
extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="../../../../com/google/android/exoplayer/LoadControl.html" title="interface in com.google.android.exoplayer">LoadControl</a></pre>
<div class="block">A <a href="../../../../com/google/android/exoplayer/LoadControl.html" title="interface in com.google.android.exoplayer"><code>LoadControl</code></a> implementation that allows loads to continue in a sequence that prevents
any loader from getting too far ahead or behind any of the other loaders.
<p>
Loads are scheduled so as to fill the available buffer space as rapidly as possible. Once the
duration of buffered media and the buffer utilization both exceed respective thresholds, the
control switches to a draining state during which no loads are permitted to start. During
draining periods, resources such as the device radio have an opportunity to switch into low
power modes. The control reverts back to the loading state when either the duration of buffered
media or the buffer utilization fall below respective thresholds.
<p>
This implementation of <a href="../../../../com/google/android/exoplayer/LoadControl.html" title="interface in com.google.android.exoplayer"><code>LoadControl</code></a> integrates with <a href="../../../../com/google/android/exoplayer/upstream/NetworkLock.html" title="class in com.google.android.exoplayer.upstream"><code>NetworkLock</code></a>, by registering
itself as a task with priority <a href="../../../../com/google/android/exoplayer/upstream/NetworkLock.html#STREAMING_PRIORITY"><code>NetworkLock.STREAMING_PRIORITY</code></a> during loading periods,
and unregistering itself during draining periods.</div>
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<td class="colFirst"><code>static interface&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/DefaultLoadControl.EventListener.html" title="interface in com.google.android.exoplayer">DefaultLoadControl.EventListener</a></span></code>
<div class="block">Interface definition for a callback to be notified of <a href="../../../../com/google/android/exoplayer/DefaultLoadControl.html" title="class in com.google.android.exoplayer"><code>DefaultLoadControl</code></a> events.</div>
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<td class="colFirst"><code>static float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/DefaultLoadControl.html#DEFAULT_HIGH_BUFFER_LOAD">DEFAULT_HIGH_BUFFER_LOAD</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/DefaultLoadControl.html#DEFAULT_HIGH_WATERMARK_MS">DEFAULT_HIGH_WATERMARK_MS</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/DefaultLoadControl.html#DEFAULT_LOW_BUFFER_LOAD">DEFAULT_LOW_BUFFER_LOAD</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/DefaultLoadControl.html#DEFAULT_LOW_WATERMARK_MS">DEFAULT_LOW_WATERMARK_MS</a></span></code>&nbsp;</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/DefaultLoadControl.html#DefaultLoadControl-com.google.android.exoplayer.upstream.Allocator-">DefaultLoadControl</a></span>(<a href="../../../../com/google/android/exoplayer/upstream/Allocator.html" title="interface in com.google.android.exoplayer.upstream">Allocator</a>&nbsp;allocator)</code>
<div class="block">Constructs a new instance, using the <code>DEFAULT_*</code> constants defined in this class.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/DefaultLoadControl.html#DefaultLoadControl-com.google.android.exoplayer.upstream.Allocator-android.os.Handler-com.google.android.exoplayer.DefaultLoadControl.EventListener-">DefaultLoadControl</a></span>(<a href="../../../../com/google/android/exoplayer/upstream/Allocator.html" title="interface in com.google.android.exoplayer.upstream">Allocator</a>&nbsp;allocator,
<a href="https://developer.android.com/reference/android/os/Handler.html?is-external=true" title="class or interface in android.os">Handler</a>&nbsp;eventHandler,
<a href="../../../../com/google/android/exoplayer/DefaultLoadControl.EventListener.html" title="interface in com.google.android.exoplayer">DefaultLoadControl.EventListener</a>&nbsp;eventListener)</code>
<div class="block">Constructs a new instance, using the <code>DEFAULT_*</code> constants defined in this class.</div>
</td>
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<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/DefaultLoadControl.html#DefaultLoadControl-com.google.android.exoplayer.upstream.Allocator-android.os.Handler-com.google.android.exoplayer.DefaultLoadControl.EventListener-int-int-float-float-">DefaultLoadControl</a></span>(<a href="../../../../com/google/android/exoplayer/upstream/Allocator.html" title="interface in com.google.android.exoplayer.upstream">Allocator</a>&nbsp;allocator,
<a href="https://developer.android.com/reference/android/os/Handler.html?is-external=true" title="class or interface in android.os">Handler</a>&nbsp;eventHandler,
<a href="../../../../com/google/android/exoplayer/DefaultLoadControl.EventListener.html" title="interface in com.google.android.exoplayer">DefaultLoadControl.EventListener</a>&nbsp;eventListener,
int&nbsp;lowWatermarkMs,
int&nbsp;highWatermarkMs,
float&nbsp;lowBufferLoad,
float&nbsp;highBufferLoad)</code>
<div class="block">Constructs a new instance.</div>
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<td class="colFirst"><code><a href="../../../../com/google/android/exoplayer/upstream/Allocator.html" title="interface in com.google.android.exoplayer.upstream">Allocator</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/DefaultLoadControl.html#getAllocator--">getAllocator</a></span>()</code>
<div class="block">Gets the <a href="../../../../com/google/android/exoplayer/upstream/Allocator.html" title="interface in com.google.android.exoplayer.upstream"><code>Allocator</code></a> that loaders should use to obtain memory allocations into which
data can be loaded.</div>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/DefaultLoadControl.html#register-java.lang.Object-int-">register</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;loader,
int&nbsp;bufferSizeContribution)</code>
<div class="block">Registers a loader.</div>
</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/DefaultLoadControl.html#trimAllocator--">trimAllocator</a></span>()</code>
<div class="block">Hints to the control that it should consider trimming any unused memory being held in order
to satisfy allocation requests.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/DefaultLoadControl.html#unregister-java.lang.Object-">unregister</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;loader)</code>
<div class="block">Unregisters a loader.</div>
</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/DefaultLoadControl.html#update-java.lang.Object-long-long-boolean-">update</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;loader,
long&nbsp;playbackPositionUs,
long&nbsp;nextLoadPositionUs,
boolean&nbsp;loading)</code>
<div class="block">Invoked by a loader to update the control with its current state.</div>
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<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h4>DEFAULT_LOW_WATERMARK_MS</h4>
<pre>public static final&nbsp;int DEFAULT_LOW_WATERMARK_MS</pre>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../constant-values.html#com.google.android.exoplayer.DefaultLoadControl.DEFAULT_LOW_WATERMARK_MS">Constant Field Values</a></dd>
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<h4>DEFAULT_HIGH_WATERMARK_MS</h4>
<pre>public static final&nbsp;int DEFAULT_HIGH_WATERMARK_MS</pre>
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<dd><a href="../../../../constant-values.html#com.google.android.exoplayer.DefaultLoadControl.DEFAULT_HIGH_WATERMARK_MS">Constant Field Values</a></dd>
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<h4>DEFAULT_LOW_BUFFER_LOAD</h4>
<pre>public static final&nbsp;float DEFAULT_LOW_BUFFER_LOAD</pre>
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<dd><a href="../../../../constant-values.html#com.google.android.exoplayer.DefaultLoadControl.DEFAULT_LOW_BUFFER_LOAD">Constant Field Values</a></dd>
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<h4>DEFAULT_HIGH_BUFFER_LOAD</h4>
<pre>public static final&nbsp;float DEFAULT_HIGH_BUFFER_LOAD</pre>
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<dd><a href="../../../../constant-values.html#com.google.android.exoplayer.DefaultLoadControl.DEFAULT_HIGH_BUFFER_LOAD">Constant Field Values</a></dd>
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<h4>DefaultLoadControl</h4>
<pre>public&nbsp;DefaultLoadControl(<a href="../../../../com/google/android/exoplayer/upstream/Allocator.html" title="interface in com.google.android.exoplayer.upstream">Allocator</a>&nbsp;allocator)</pre>
<div class="block">Constructs a new instance, using the <code>DEFAULT_*</code> constants defined in this class.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>allocator</code> - The <a href="../../../../com/google/android/exoplayer/upstream/Allocator.html" title="interface in com.google.android.exoplayer.upstream"><code>Allocator</code></a> used by the loader.</dd>
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<h4>DefaultLoadControl</h4>
<pre>public&nbsp;DefaultLoadControl(<a href="../../../../com/google/android/exoplayer/upstream/Allocator.html" title="interface in com.google.android.exoplayer.upstream">Allocator</a>&nbsp;allocator,
<a href="https://developer.android.com/reference/android/os/Handler.html?is-external=true" title="class or interface in android.os">Handler</a>&nbsp;eventHandler,
<a href="../../../../com/google/android/exoplayer/DefaultLoadControl.EventListener.html" title="interface in com.google.android.exoplayer">DefaultLoadControl.EventListener</a>&nbsp;eventListener)</pre>
<div class="block">Constructs a new instance, using the <code>DEFAULT_*</code> constants defined in this class.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>allocator</code> - The <a href="../../../../com/google/android/exoplayer/upstream/Allocator.html" title="interface in com.google.android.exoplayer.upstream"><code>Allocator</code></a> used by the loader.</dd>
<dd><code>eventHandler</code> - A handler to use when delivering events to <code>eventListener</code>. May be
null if delivery of events is not required.</dd>
<dd><code>eventListener</code> - A listener of events. May be null if delivery of events is not required.</dd>
</dl>
</li>
</ul>
<a name="DefaultLoadControl-com.google.android.exoplayer.upstream.Allocator-android.os.Handler-com.google.android.exoplayer.DefaultLoadControl.EventListener-int-int-float-float-">
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<h4>DefaultLoadControl</h4>
<pre>public&nbsp;DefaultLoadControl(<a href="../../../../com/google/android/exoplayer/upstream/Allocator.html" title="interface in com.google.android.exoplayer.upstream">Allocator</a>&nbsp;allocator,
<a href="https://developer.android.com/reference/android/os/Handler.html?is-external=true" title="class or interface in android.os">Handler</a>&nbsp;eventHandler,
<a href="../../../../com/google/android/exoplayer/DefaultLoadControl.EventListener.html" title="interface in com.google.android.exoplayer">DefaultLoadControl.EventListener</a>&nbsp;eventListener,
int&nbsp;lowWatermarkMs,
int&nbsp;highWatermarkMs,
float&nbsp;lowBufferLoad,
float&nbsp;highBufferLoad)</pre>
<div class="block">Constructs a new instance.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>allocator</code> - The <a href="../../../../com/google/android/exoplayer/upstream/Allocator.html" title="interface in com.google.android.exoplayer.upstream"><code>Allocator</code></a> used by the loader.</dd>
<dd><code>eventHandler</code> - A handler to use when delivering events to <code>eventListener</code>. May be
null if delivery of events is not required.</dd>
<dd><code>eventListener</code> - A listener of events. May be null if delivery of events is not required.</dd>
<dd><code>lowWatermarkMs</code> - The minimum duration of media that can be buffered for the control to
be in the draining state. If less media is buffered, then the control will transition to
the filling state.</dd>
<dd><code>highWatermarkMs</code> - The minimum duration of media that can be buffered for the control to
transition from filling to draining.</dd>
<dd><code>lowBufferLoad</code> - The minimum fraction of the buffer that must be utilized for the control
to be in the draining state. If the utilization is lower, then the control will transition
to the filling state.</dd>
<dd><code>highBufferLoad</code> - The minimum fraction of the buffer that must be utilized for the control
to transition from the loading state to the draining state.</dd>
</dl>
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<h4>register</h4>
<pre>public&nbsp;void&nbsp;register(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;loader,
int&nbsp;bufferSizeContribution)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../com/google/android/exoplayer/LoadControl.html#register-java.lang.Object-int-">LoadControl</a></code></span></div>
<div class="block">Registers a loader.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/LoadControl.html#register-java.lang.Object-int-">register</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../com/google/android/exoplayer/LoadControl.html" title="interface in com.google.android.exoplayer">LoadControl</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>loader</code> - The loader being registered.</dd>
<dd><code>bufferSizeContribution</code> - For instances whose <a href="../../../../com/google/android/exoplayer/upstream/Allocator.html" title="interface in com.google.android.exoplayer.upstream"><code>Allocator</code></a> maintains a pool of memory
for the purpose of satisfying allocation requests, this is a hint indicating the loader's
desired contribution to the size of the pool, in bytes.</dd>
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<h4>unregister</h4>
<pre>public&nbsp;void&nbsp;unregister(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;loader)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../com/google/android/exoplayer/LoadControl.html#unregister-java.lang.Object-">LoadControl</a></code></span></div>
<div class="block">Unregisters a loader.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/LoadControl.html#unregister-java.lang.Object-">unregister</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../com/google/android/exoplayer/LoadControl.html" title="interface in com.google.android.exoplayer">LoadControl</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>loader</code> - The loader being unregistered.</dd>
</dl>
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<h4>trimAllocator</h4>
<pre>public&nbsp;void&nbsp;trimAllocator()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../com/google/android/exoplayer/LoadControl.html#trimAllocator--">LoadControl</a></code></span></div>
<div class="block">Hints to the control that it should consider trimming any unused memory being held in order
to satisfy allocation requests.
<p>
This method is typically invoked by a recently unregistered loader, once it has released all
of its allocations back to the <a href="../../../../com/google/android/exoplayer/upstream/Allocator.html" title="interface in com.google.android.exoplayer.upstream"><code>Allocator</code></a>.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/LoadControl.html#trimAllocator--">trimAllocator</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../com/google/android/exoplayer/LoadControl.html" title="interface in com.google.android.exoplayer">LoadControl</a></code></dd>
</dl>
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<h4>getAllocator</h4>
<pre>public&nbsp;<a href="../../../../com/google/android/exoplayer/upstream/Allocator.html" title="interface in com.google.android.exoplayer.upstream">Allocator</a>&nbsp;getAllocator()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../com/google/android/exoplayer/LoadControl.html#getAllocator--">LoadControl</a></code></span></div>
<div class="block">Gets the <a href="../../../../com/google/android/exoplayer/upstream/Allocator.html" title="interface in com.google.android.exoplayer.upstream"><code>Allocator</code></a> that loaders should use to obtain memory allocations into which
data can be loaded.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/LoadControl.html#getAllocator--">getAllocator</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../com/google/android/exoplayer/LoadControl.html" title="interface in com.google.android.exoplayer">LoadControl</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The <a href="../../../../com/google/android/exoplayer/upstream/Allocator.html" title="interface in com.google.android.exoplayer.upstream"><code>Allocator</code></a> to use.</dd>
</dl>
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<h4>update</h4>
<pre>public&nbsp;boolean&nbsp;update(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;loader,
long&nbsp;playbackPositionUs,
long&nbsp;nextLoadPositionUs,
boolean&nbsp;loading)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../com/google/android/exoplayer/LoadControl.html#update-java.lang.Object-long-long-boolean-">LoadControl</a></code></span></div>
<div class="block">Invoked by a loader to update the control with its current state.
<p>
This method must be called by a registered loader whenever its state changes. This is true
even if the registered loader does not itself wish to start its next load (since the state of
the loader will still affect whether other registered loaders are allowed to proceed).</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/LoadControl.html#update-java.lang.Object-long-long-boolean-">update</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../com/google/android/exoplayer/LoadControl.html" title="interface in com.google.android.exoplayer">LoadControl</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>loader</code> - The loader invoking the update.</dd>
<dd><code>playbackPositionUs</code> - The loader's playback position.</dd>
<dd><code>nextLoadPositionUs</code> - The loader's next load position. -1 if finished, failed, or if the
next load position is not yet known.</dd>
<dd><code>loading</code> - Whether the loader is currently loading data.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>True if the loader is allowed to start its next load. False otherwise.</dd>
</dl>
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