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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">com.google.android.exoplayer2.util</a></div>
<h2 title="Interface Clock" class="title">Interface Clock</h2>
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<dt>All Known Implementing Classes:</dt>
<dd><code><a href="../testutil/FakeClock.html" title="class in com.google.android.exoplayer2.testutil">FakeClock</a></code>, <code><a href="SystemClock.html" title="class in com.google.android.exoplayer2.util">SystemClock</a></code></dd>
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<pre>public interface <span class="typeNameLabel">Clock</span></pre>
<div class="block">An interface through which system clocks can be read and <a href="HandlerWrapper.html" title="interface in com.google.android.exoplayer2.util"><code>HandlerWrapper</code></a>s created. The
<a href="#DEFAULT"><code>DEFAULT</code></a> implementation must be used for all non-test cases.</div>
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<td class="colFirst"><code>static <a href="Clock.html" title="interface in com.google.android.exoplayer2.util">Clock</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT">DEFAULT</a></span></code></th>
<td class="colLast">
<div class="block">Default <a href="Clock.html" title="interface in com.google.android.exoplayer2.util"><code>Clock</code></a> to use for all non-test cases.</div>
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<td class="colFirst"><code><a href="HandlerWrapper.html" title="interface in com.google.android.exoplayer2.util">HandlerWrapper</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#createHandler(android.os.Looper,android.os.Handler.Callback)">createHandler</a></span>&#8203;(<a href="https://developer.android.com/reference/android/os/Looper.html" title="class or interface in android.os" class="externalLink" target="_top">Looper</a>&nbsp;looper,
<a href="https://developer.android.com/reference/android/os/Handler.Callback.html" title="class or interface in android.os" class="externalLink" target="_top">Handler.Callback</a>&nbsp;callback)</code></th>
<td class="colLast">
<div class="block">Creates a <a href="HandlerWrapper.html" title="interface in com.google.android.exoplayer2.util"><code>HandlerWrapper</code></a> using a specified looper and a specified callback for handling
messages.</div>
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<td class="colFirst"><code>long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#currentTimeMillis()">currentTimeMillis</a></span>()</code></th>
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<div class="block">Returns the current time in milliseconds since the Unix Epoch.</div>
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<td class="colFirst"><code>long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#elapsedRealtime()">elapsedRealtime</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onThreadBlocked()">onThreadBlocked</a></span>()</code></th>
<td class="colLast">
<div class="block">Notifies the clock that the current thread is about to be blocked and won't return until a
condition on another thread becomes true.</div>
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<td class="colFirst"><code>long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#uptimeMillis()">uptimeMillis</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
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<h4>DEFAULT</h4>
<pre>static final&nbsp;<a href="Clock.html" title="interface in com.google.android.exoplayer2.util">Clock</a> DEFAULT</pre>
<div class="block">Default <a href="Clock.html" title="interface in com.google.android.exoplayer2.util"><code>Clock</code></a> to use for all non-test cases.</div>
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<h4>currentTimeMillis</h4>
<pre class="methodSignature">long&nbsp;currentTimeMillis()</pre>
<div class="block">Returns the current time in milliseconds since the Unix Epoch.</div>
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<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="https://developer.android.com/reference/java/lang/System.html#currentTimeMillis()" title="class or interface in java.lang" class="externalLink" target="_top"><code>System.currentTimeMillis()</code></a></dd>
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<h4>elapsedRealtime</h4>
<pre class="methodSignature">long&nbsp;elapsedRealtime()</pre>
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<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="https://developer.android.com/reference/android/os/SystemClock.html#elapsedRealtime()" title="class or interface in android.os" class="externalLink" target="_top"><code>SystemClock.elapsedRealtime()</code></a></dd>
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<h4>uptimeMillis</h4>
<pre class="methodSignature">long&nbsp;uptimeMillis()</pre>
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<dd><a href="https://developer.android.com/reference/android/os/SystemClock.html#uptimeMillis()" title="class or interface in android.os" class="externalLink" target="_top"><code>SystemClock.uptimeMillis()</code></a></dd>
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<h4>createHandler</h4>
<pre class="methodSignature"><a href="HandlerWrapper.html" title="interface in com.google.android.exoplayer2.util">HandlerWrapper</a>&nbsp;createHandler&#8203;(<a href="https://developer.android.com/reference/android/os/Looper.html" title="class or interface in android.os" class="externalLink" target="_top">Looper</a>&nbsp;looper,
@Nullable
<a href="https://developer.android.com/reference/android/os/Handler.Callback.html" title="class or interface in android.os" class="externalLink" target="_top">Handler.Callback</a>&nbsp;callback)</pre>
<div class="block">Creates a <a href="HandlerWrapper.html" title="interface in com.google.android.exoplayer2.util"><code>HandlerWrapper</code></a> using a specified looper and a specified callback for handling
messages.</div>
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<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="https://developer.android.com/reference/android/os/Handler.html#%3Cinit%3E(android.os.Looper,android.os.Handler.Callback)" title="class or interface in android.os" class="externalLink" target="_top"><code>Handler(Looper, Handler.Callback)</code></a></dd>
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<h4>onThreadBlocked</h4>
<pre class="methodSignature">void&nbsp;onThreadBlocked()</pre>
<div class="block">Notifies the clock that the current thread is about to be blocked and won't return until a
condition on another thread becomes true.
<p>Should be a no-op for all non-test cases.</div>
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