Use Util method to create Handler instead of using deprecated method.

Calls to new Handler() without arguments are deprecated as of the latest Android
version. Replace them by a Util.createHandler call similar to the ones we
already have.

PiperOrigin-RevId: 283532891

extensions/leanback/src/main/java/com/google/android/exoplayer2/ext/leanback/LeanbackPlayerAdapter.java

@@ -36,6 +36,7 @@ import com.google.android.exoplayer2.Player.DiscontinuityReason;
 import com.google.android.exoplayer2.Player.TimelineChangeReason;
 import com.google.android.exoplayer2.Timeline;
 import com.google.android.exoplayer2.util.ErrorMessageProvider;
+import com.google.android.exoplayer2.util.Util;
 import com.google.android.exoplayer2.video.VideoListener;
 
 /** Leanback {@code PlayerAdapter} implementation for {@link Player}. */
@@ -71,7 +72,7 @@ public final class LeanbackPlayerAdapter extends PlayerAdapter implements Runnab
     this.context = context;
     this.player = player;
     this.updatePeriodMs = updatePeriodMs;
-    handler = new Handler();
+    handler = Util.createHandler();
     componentListener = new ComponentListener();
     controlDispatcher = new DefaultControlDispatcher();
   }

library/core/src/main/java/com/google/android/exoplayer2/Playlist.java

@@ -427,7 +427,7 @@ import java.util.Set;
         (source, timeline) -> playlistInfoListener.onPlaylistUpdateRequested();
     MediaSourceEventListener eventListener = new ForwardingEventListener(holder);
     childSources.put(holder, new MediaSourceAndListener(mediaSource, caller, eventListener));
-    mediaSource.addEventListener(new Handler(), eventListener);
+    mediaSource.addEventListener(Util.createHandler(), eventListener);
     mediaSource.prepareSource(caller, mediaTransferListener);
   }
 

library/core/src/main/java/com/google/android/exoplayer2/source/CompositeMediaSource.java

@@ -46,7 +46,7 @@ public abstract class CompositeMediaSource<T> extends BaseMediaSource {
   @CallSuper
   protected void prepareSourceInternal(@Nullable TransferListener mediaTransferListener) {
     this.mediaTransferListener = mediaTransferListener;
-    eventHandler = new Handler();
+    eventHandler = Util.createHandler();
   }
 
   @Override

library/core/src/main/java/com/google/android/exoplayer2/source/ProgressiveMediaPeriod.java

@@ -189,7 +189,7 @@ import org.checkerframework.checker.nullness.compatqual.NullableType;
                 .onContinueLoadingRequested(ProgressiveMediaPeriod.this);
           }
         };
-    handler = new Handler();
+    handler = Util.createHandler();
     sampleQueueTrackIds = new TrackId[0];
     sampleQueues = new SampleQueue[0];
     pendingResetPositionUs = C.TIME_UNSET;

library/core/src/main/java/com/google/android/exoplayer2/source/ads/AdsMediaSource.java

@@ -37,6 +37,7 @@ import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.upstream.DataSpec;
 import com.google.android.exoplayer2.upstream.TransferListener;
 import com.google.android.exoplayer2.util.Assertions;
+import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 import java.lang.annotation.Documented;
 import java.lang.annotation.Retention;
@@ -365,7 +366,7 @@ public final class AdsMediaSource extends CompositeMediaSource<MediaPeriodId> {
      * events on the external event listener thread.
      */
     public ComponentListener() {
-      playerHandler = new Handler();
+      playerHandler = Util.createHandler();
     }
 
     /** Releases the component listener. */

library/core/src/main/java/com/google/android/exoplayer2/util/Util.java

@@ -366,6 +366,17 @@ public final class Util {
         /* length= */ second.length);
     return concatenation;
   }
+
+  /**
+   * Creates a {@link Handler} on the current {@link Looper} thread.
+   *
+   * <p>If the current thread doesn't have a {@link Looper}, the application's main thread {@link
+   * Looper} is used.
+   */
+  public static Handler createHandler() {
+    return createHandler(/* callback= */ null);
+  }
+
   /**
    * Creates a {@link Handler} with the specified {@link Handler.Callback} on the current {@link
    * Looper} thread. The method accepts partially initialized objects as callback under the
@@ -375,10 +386,11 @@ public final class Util {
    * <p>If the current thread doesn't have a {@link Looper}, the application's main thread {@link
    * Looper} is used.
    *
-   * @param callback A {@link Handler.Callback}. May be a partially initialized class.
+   * @param callback A {@link Handler.Callback}. May be a partially initialized class, or null if no
+   *     callback is required.
    * @return A {@link Handler} with the specified callback on the current {@link Looper} thread.
    */
-  public static Handler createHandler(Handler.@UnknownInitialization Callback callback) {
+  public static Handler createHandler(@Nullable Handler.@UnknownInitialization Callback callback) {
     return createHandler(getLooper(), callback);
   }
 
@@ -389,12 +401,13 @@ public final class Util {
    * initialized.
    *
    * @param looper A {@link Looper} to run the callback on.
-   * @param callback A {@link Handler.Callback}. May be a partially initialized class.
+   * @param callback A {@link Handler.Callback}. May be a partially initialized class, or null if no
+   *     callback is required.
    * @return A {@link Handler} with the specified callback on the current {@link Looper} thread.
    */
   @SuppressWarnings({"nullness:argument.type.incompatible", "nullness:return.type.incompatible"})
   public static Handler createHandler(
-      Looper looper, Handler.@UnknownInitialization Callback callback) {
+      Looper looper, @Nullable Handler.@UnknownInitialization Callback callback) {
     return new Handler(looper, callback);
   }
 
@@ -1988,7 +2001,7 @@ public final class Util {
       @Nullable DrmSessionManager<FrameworkMediaCrypto> drmSessionManager) {
     Renderer[] renderers =
         renderersFactory.createRenderers(
-            new Handler(),
+            Util.createHandler(),
             new VideoRendererEventListener() {},
             new AudioRendererEventListener() {},
             (cues) -> {},

library/core/src/main/java/com/google/android/exoplayer2/video/MediaCodecVideoRenderer.java

@@ -1799,7 +1799,7 @@ public class MediaCodecVideoRenderer extends MediaCodecRenderer {
   private final class OnFrameRenderedListenerV23 implements MediaCodec.OnFrameRenderedListener {
 
     private OnFrameRenderedListenerV23(MediaCodec codec) {
-      codec.setOnFrameRenderedListener(this, new Handler());
+      codec.setOnFrameRenderedListener(/* listener= */ this, Util.createHandler());
     }
 
     @Override

library/core/src/test/java/com/google/android/exoplayer2/source/ClippingMediaSourceTest.java

@@ -18,7 +18,6 @@ package com.google.android.exoplayer2.source;
 import static com.google.common.truth.Truth.assertThat;
 import static org.junit.Assert.fail;
 
-import android.os.Handler;
 import androidx.annotation.Nullable;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
@@ -37,6 +36,7 @@ import com.google.android.exoplayer2.testutil.MediaSourceTestRunner;
 import com.google.android.exoplayer2.testutil.TimelineAsserts;
 import com.google.android.exoplayer2.upstream.Allocator;
 import com.google.android.exoplayer2.upstream.TransferListener;
+import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 import org.junit.Before;
 import org.junit.Test;
@@ -553,7 +553,7 @@ public final class ClippingMediaSourceTest {
       testRunner.runOnPlaybackThread(
           () ->
               clippingMediaSource.addEventListener(
-                  new Handler(),
+                  Util.createHandler(),
                   new MediaSourceEventListener() {
                     @Override
                     public void onDownstreamFormatChanged(

library/core/src/test/java/com/google/android/exoplayer2/source/ConcatenatingMediaSourceTest.java

@@ -19,7 +19,6 @@ import static com.google.common.truth.Truth.assertThat;
 import static org.junit.Assert.fail;
 import static org.mockito.Mockito.mock;
 
-import android.os.Handler;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Player;
@@ -34,6 +33,7 @@ import com.google.android.exoplayer2.testutil.FakeTimeline;
 import com.google.android.exoplayer2.testutil.FakeTimeline.TimelineWindowDefinition;
 import com.google.android.exoplayer2.testutil.MediaSourceTestRunner;
 import com.google.android.exoplayer2.testutil.TimelineAsserts;
+import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -414,7 +414,7 @@ public final class ConcatenatingMediaSourceTest {
     dummyMainThread.runOnMainThread(
         () ->
             mediaSource.addMediaSource(
-                createFakeMediaSource(), new Handler(), runnableInvoked::countDown));
+                createFakeMediaSource(), Util.createHandler(), runnableInvoked::countDown));
     runnableInvoked.await(MediaSourceTestRunner.TIMEOUT_MS, TimeUnit.MILLISECONDS);
     dummyMainThread.release();
 
@@ -430,7 +430,7 @@ public final class ConcatenatingMediaSourceTest {
         () ->
             mediaSource.addMediaSources(
                 Arrays.asList(new MediaSource[] {createFakeMediaSource(), createFakeMediaSource()}),
-                new Handler(),
+                Util.createHandler(),
                 runnableInvoked::countDown));
     runnableInvoked.await(MediaSourceTestRunner.TIMEOUT_MS, TimeUnit.MILLISECONDS);
     dummyMainThread.release();
@@ -446,7 +446,10 @@ public final class ConcatenatingMediaSourceTest {
     dummyMainThread.runOnMainThread(
         () ->
             mediaSource.addMediaSource(
-                /* index */ 0, createFakeMediaSource(), new Handler(), runnableInvoked::countDown));
+                /* index */ 0,
+                createFakeMediaSource(),
+                Util.createHandler(),
+                runnableInvoked::countDown));
     runnableInvoked.await(MediaSourceTestRunner.TIMEOUT_MS, TimeUnit.MILLISECONDS);
     dummyMainThread.release();
 
@@ -463,7 +466,7 @@ public final class ConcatenatingMediaSourceTest {
             mediaSource.addMediaSources(
                 /* index */ 0,
                 Arrays.asList(new MediaSource[] {createFakeMediaSource(), createFakeMediaSource()}),
-                new Handler(),
+                Util.createHandler(),
                 runnableInvoked::countDown));
     runnableInvoked.await(MediaSourceTestRunner.TIMEOUT_MS, TimeUnit.MILLISECONDS);
     dummyMainThread.release();
@@ -479,7 +482,8 @@ public final class ConcatenatingMediaSourceTest {
     dummyMainThread.runOnMainThread(
         () -> {
           mediaSource.addMediaSource(createFakeMediaSource());
-          mediaSource.removeMediaSource(/* index */ 0, new Handler(), runnableInvoked::countDown);
+          mediaSource.removeMediaSource(
+              /* index */ 0, Util.createHandler(), runnableInvoked::countDown);
         });
     runnableInvoked.await(MediaSourceTestRunner.TIMEOUT_MS, TimeUnit.MILLISECONDS);
     dummyMainThread.release();
@@ -497,7 +501,7 @@ public final class ConcatenatingMediaSourceTest {
           mediaSource.addMediaSources(
               Arrays.asList(new MediaSource[] {createFakeMediaSource(), createFakeMediaSource()}));
           mediaSource.moveMediaSource(
-              /* fromIndex */ 1, /* toIndex */ 0, new Handler(), runnableInvoked::countDown);
+              /* fromIndex */ 1, /* toIndex */ 0, Util.createHandler(), runnableInvoked::countDown);
         });
     runnableInvoked.await(MediaSourceTestRunner.TIMEOUT_MS, TimeUnit.MILLISECONDS);
     dummyMainThread.release();
@@ -513,7 +517,8 @@ public final class ConcatenatingMediaSourceTest {
       final TimelineGrabber timelineGrabber = new TimelineGrabber(testRunner);
       dummyMainThread.runOnMainThread(
           () ->
-              mediaSource.addMediaSource(createFakeMediaSource(), new Handler(), timelineGrabber));
+              mediaSource.addMediaSource(
+                  createFakeMediaSource(), Util.createHandler(), timelineGrabber));
       Timeline timeline = timelineGrabber.assertTimelineChangeBlocking();
       assertThat(timeline.getWindowCount()).isEqualTo(1);
     } finally {
@@ -532,7 +537,7 @@ public final class ConcatenatingMediaSourceTest {
               mediaSource.addMediaSources(
                   Arrays.asList(
                       new MediaSource[] {createFakeMediaSource(), createFakeMediaSource()}),
-                  new Handler(),
+                  Util.createHandler(),
                   timelineGrabber));
       Timeline timeline = timelineGrabber.assertTimelineChangeBlocking();
       assertThat(timeline.getWindowCount()).isEqualTo(2);
@@ -550,7 +555,7 @@ public final class ConcatenatingMediaSourceTest {
       dummyMainThread.runOnMainThread(
           () ->
               mediaSource.addMediaSource(
-                  /* index */ 0, createFakeMediaSource(), new Handler(), timelineGrabber));
+                  /* index */ 0, createFakeMediaSource(), Util.createHandler(), timelineGrabber));
       Timeline timeline = timelineGrabber.assertTimelineChangeBlocking();
       assertThat(timeline.getWindowCount()).isEqualTo(1);
     } finally {
@@ -570,7 +575,7 @@ public final class ConcatenatingMediaSourceTest {
                   /* index */ 0,
                   Arrays.asList(
                       new MediaSource[] {createFakeMediaSource(), createFakeMediaSource()}),
-                  new Handler(),
+                  Util.createHandler(),
                   timelineGrabber));
       Timeline timeline = timelineGrabber.assertTimelineChangeBlocking();
       assertThat(timeline.getWindowCount()).isEqualTo(2);
@@ -589,7 +594,8 @@ public final class ConcatenatingMediaSourceTest {
 
       final TimelineGrabber timelineGrabber = new TimelineGrabber(testRunner);
       dummyMainThread.runOnMainThread(
-          () -> mediaSource.removeMediaSource(/* index */ 0, new Handler(), timelineGrabber));
+          () ->
+              mediaSource.removeMediaSource(/* index */ 0, Util.createHandler(), timelineGrabber));
       Timeline timeline = timelineGrabber.assertTimelineChangeBlocking();
       assertThat(timeline.getWindowCount()).isEqualTo(0);
     } finally {
@@ -613,7 +619,7 @@ public final class ConcatenatingMediaSourceTest {
       dummyMainThread.runOnMainThread(
           () ->
               mediaSource.moveMediaSource(
-                  /* fromIndex */ 1, /* toIndex */ 0, new Handler(), timelineGrabber));
+                  /* fromIndex */ 1, /* toIndex */ 0, Util.createHandler(), timelineGrabber));
       Timeline timeline = timelineGrabber.assertTimelineChangeBlocking();
       assertThat(timeline.getWindowCount()).isEqualTo(2);
     } finally {
@@ -634,7 +640,7 @@ public final class ConcatenatingMediaSourceTest {
             mediaSource.moveMediaSource(
                 /* currentIndex= */ 0,
                 /* newIndex= */ 1,
-                new Handler(),
+                Util.createHandler(),
                 callbackCalledCondition::countDown);
             mediaSource.releaseSource(caller);
           });
@@ -886,7 +892,7 @@ public final class ConcatenatingMediaSourceTest {
     testRunner.prepareSource();
     final TimelineGrabber timelineGrabber = new TimelineGrabber(testRunner);
 
-    dummyMainThread.runOnMainThread(() -> mediaSource.clear(new Handler(), timelineGrabber));
+    dummyMainThread.runOnMainThread(() -> mediaSource.clear(Util.createHandler(), timelineGrabber));
 
     Timeline timeline = timelineGrabber.assertTimelineChangeBlocking();
     assertThat(timeline.isEmpty()).isTrue();
@@ -1038,7 +1044,7 @@ public final class ConcatenatingMediaSourceTest {
         () ->
             mediaSource.setShuffleOrder(
                 new ShuffleOrder.UnshuffledShuffleOrder(/* length= */ 0),
-                new Handler(),
+                Util.createHandler(),
                 runnableInvoked::countDown));
     runnableInvoked.await(MediaSourceTestRunner.TIMEOUT_MS, TimeUnit.MILLISECONDS);
     dummyMainThread.release();
@@ -1058,7 +1064,7 @@ public final class ConcatenatingMediaSourceTest {
           () ->
               mediaSource.setShuffleOrder(
                   new ShuffleOrder.UnshuffledShuffleOrder(/* length= */ 3),
-                  new Handler(),
+                  Util.createHandler(),
                   timelineGrabber));
       Timeline timeline = timelineGrabber.assertTimelineChangeBlocking();
       assertThat(timeline.getFirstWindowIndex(/* shuffleModeEnabled= */ true)).isEqualTo(0);

library/dash/src/main/java/com/google/android/exoplayer2/source/dash/DashMediaSource.java

@@ -663,7 +663,7 @@ public final class DashMediaSource extends BaseMediaSource {
     } else {
       dataSource = manifestDataSourceFactory.createDataSource();
       loader = new Loader("Loader:DashMediaSource");
-      handler = new Handler();
+      handler = Util.createHandler();
       startLoadingManifest();
     }
   }

library/hls/src/main/java/com/google/android/exoplayer2/source/hls/HlsSampleStreamWrapper.java

@@ -219,7 +219,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
     @SuppressWarnings("nullness:methodref.receiver.bound.invalid")
     Runnable onTracksEndedRunnable = this::onTracksEnded;
     this.onTracksEndedRunnable = onTracksEndedRunnable;
-    handler = new Handler();
+    handler = Util.createHandler();
     lastSeekPositionUs = positionUs;
     pendingResetPositionUs = positionUs;
   }

library/hls/src/main/java/com/google/android/exoplayer2/source/hls/playlist/DefaultHlsPlaylistTracker.java

@@ -31,6 +31,7 @@ import com.google.android.exoplayer2.upstream.Loader;
 import com.google.android.exoplayer2.upstream.Loader.LoadErrorAction;
 import com.google.android.exoplayer2.upstream.ParsingLoadable;
 import com.google.android.exoplayer2.util.Assertions;
+import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -117,7 +118,7 @@ public final class DefaultHlsPlaylistTracker
       Uri initialPlaylistUri,
       EventDispatcher eventDispatcher,
       PrimaryPlaylistListener primaryPlaylistListener) {
-    this.playlistRefreshHandler = new Handler();
+    this.playlistRefreshHandler = Util.createHandler();
     this.eventDispatcher = eventDispatcher;
     this.primaryPlaylistListener = primaryPlaylistListener;
     ParsingLoadable<HlsPlaylist> masterPlaylistLoadable =

library/smoothstreaming/src/main/java/com/google/android/exoplayer2/source/smoothstreaming/SsMediaSource.java

@@ -50,6 +50,7 @@ import com.google.android.exoplayer2.upstream.LoaderErrorThrower;
 import com.google.android.exoplayer2.upstream.ParsingLoadable;
 import com.google.android.exoplayer2.upstream.TransferListener;
 import com.google.android.exoplayer2.util.Assertions;
+import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
@@ -560,7 +561,7 @@ public final class SsMediaSource extends BaseMediaSource
       manifestDataSource = manifestDataSourceFactory.createDataSource();
       manifestLoader = new Loader("Loader:Manifest");
       manifestLoaderErrorThrower = manifestLoader;
-      manifestRefreshHandler = new Handler();
+      manifestRefreshHandler = Util.createHandler();
       startLoadingManifest();
     }
   }

testutils/src/main/java/com/google/android/exoplayer2/testutil/Action.java

@@ -37,6 +37,7 @@ import com.google.android.exoplayer2.trackselection.DefaultTrackSelector.Paramet
 import com.google.android.exoplayer2.util.ConditionVariable;
 import com.google.android.exoplayer2.util.HandlerWrapper;
 import com.google.android.exoplayer2.util.Log;
+import com.google.android.exoplayer2.util.Util;
 
 /** Base class for actions to perform during playback tests. */
 public abstract class Action {
@@ -422,7 +423,7 @@ public abstract class Action {
       } else {
         message.setPosition(positionMs);
       }
-      message.setHandler(new Handler());
+      message.setHandler(Util.createHandler());
       message.setDeleteAfterDelivery(deleteAfterDelivery);
       message.send();
     }
@@ -503,7 +504,7 @@ public abstract class Action {
         final Surface surface,
         final HandlerWrapper handler,
         final ActionNode nextAction) {
-      Handler testThreadHandler = new Handler();
+      Handler testThreadHandler = Util.createHandler();
       // Schedule a message on the playback thread to ensure the player is paused immediately.
       player
           .createMessage(

testutils/src/main/java/com/google/android/exoplayer2/testutil/FakeMediaPeriod.java

@@ -30,6 +30,7 @@ import com.google.android.exoplayer2.source.TrackGroup;
 import com.google.android.exoplayer2.source.TrackGroupArray;
 import com.google.android.exoplayer2.trackselection.TrackSelection;
 import com.google.android.exoplayer2.upstream.DataSpec;
+import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 import java.util.Collections;
 
@@ -126,7 +127,7 @@ public class FakeMediaPeriod implements MediaPeriod {
         SystemClock.elapsedRealtime());
     prepareCallback = callback;
     if (deferOnPrepared) {
-      playerHandler = new Handler();
+      playerHandler = Util.createHandler();
     } else {
       finishPreparation();
     }

testutils/src/main/java/com/google/android/exoplayer2/testutil/FakeMediaSource.java

@@ -37,6 +37,7 @@ import com.google.android.exoplayer2.upstream.Allocator;
 import com.google.android.exoplayer2.upstream.DataSpec;
 import com.google.android.exoplayer2.upstream.TransferListener;
 import com.google.android.exoplayer2.util.Assertions;
+import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -97,7 +98,7 @@ public class FakeMediaSource extends BaseMediaSource {
     transferListener = mediaTransferListener;
     preparedSource = true;
     releasedSource = false;
-    sourceInfoRefreshHandler = new Handler();
+    sourceInfoRefreshHandler = Util.createHandler();
     if (timeline != null) {
       finishSourcePreparation();
     }