ated.</span></div>
<div class="block">Starts loading a <a href="Loader.Loadable.html" title="interface in com.google.android.exoplayer2.upstream"><code>Loader.Loadable</code></a>.

 <p>The calling thread must be a <a href="https://developer.android.com/reference/android/os/Looper.html" title="class or interface in android.os" class="externalLink"><code>Looper</code></a> thread, which is the thread on which the <a href="Loader.Callback.html" title="interface in com.google.android.exoplayer2.upstream" target=