Do not specify export flags for protected system broadcasts.

Protected system broadcasts should not specify the export flag.
Marking them as NOT_EXPORTED breaks sticky broadcasts in some
cases.

Issue: #10970

#minor-release

PiperOrigin-RevId: 512020154

library/common/src/main/java/com/google/android/exoplayer2/util/NetworkTypeObserver.java

@@ -93,7 +93,7 @@ private NetworkTypeObserver(Context context) {
     networkType = C.NETWORK_TYPE_UNKNOWN;
     IntentFilter filter = new IntentFilter();
     filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
-    Util.registerReceiverNotExported(context, new Receiver(), filter);
+    context.registerReceiver(new Receiver(), filter);
   }
 
   /**

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

@@ -205,6 +205,10 @@ public static byte[] toByteArray(InputStream inputStream) throws IOException {
    * apps. This will be enforced by specifying {@link Context#RECEIVER_NOT_EXPORTED} if {@link
    * #SDK_INT} is 33 or above.
    *
+   * <p>Do not use this method if registering a receiver for a <a
+   * href="https://android.googlesource.com/platform/frameworks/base/+/master/core/res/AndroidManifest.xml">protected
+   * system broadcast</a>.
+   *
    * @param context The context on which {@link Context#registerReceiver} will be called.
    * @param receiver The {@link BroadcastReceiver} to register. This value may be null.
    * @param filter Selects the Intent broadcasts to be received.
@@ -220,32 +224,6 @@ public static Intent registerReceiverNotExported(
     }
   }
 
-  /**
-   * Registers a {@link BroadcastReceiver} that's not intended to receive broadcasts from other
-   * apps. This will be enforced by specifying {@link Context#RECEIVER_NOT_EXPORTED} if {@link
-   * #SDK_INT} is 33 or above.
-   *
-   * @param context The context on which {@link Context#registerReceiver} will be called.
-   * @param receiver The {@link BroadcastReceiver} to register. This value may be null.
-   * @param filter Selects the Intent broadcasts to be received.
-   * @param handler Handler identifying the thread that will receive the Intent.
-   * @return The first sticky intent found that matches {@code filter}, or null if there are none.
-   */
-  @Nullable
-  public static Intent registerReceiverNotExported(
-      Context context, BroadcastReceiver receiver, IntentFilter filter, Handler handler) {
-    if (SDK_INT < 33) {
-      return context.registerReceiver(receiver, filter, /* broadcastPermission= */ null, handler);
-    } else {
-      return context.registerReceiver(
-          receiver,
-          filter,
-          /* broadcastPermission= */ null,
-          handler,
-          Context.RECEIVER_NOT_EXPORTED);
-    }
-  }
-
   /**
    * Calls {@link Context#startForegroundService(Intent)} if {@link #SDK_INT} is 26 or higher, or
    * {@link Context#startService(Intent)} otherwise.

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

@@ -21,7 +21,6 @@
 import android.content.IntentFilter;
 import android.media.AudioManager;
 import android.os.Handler;
-import com.google.android.exoplayer2.util.Util;
 
 /* package */ final class AudioBecomingNoisyManager {
 
@@ -47,8 +46,8 @@ public AudioBecomingNoisyManager(Context context, Handler eventHandler, EventLis
    */
   public void setEnabled(boolean enabled) {
     if (enabled && !receiverRegistered) {
-      Util.registerReceiverNotExported(
-          context, receiver, new IntentFilter(AudioManager.ACTION_AUDIO_BECOMING_NOISY));
+      context.registerReceiver(
+          receiver, new IntentFilter(AudioManager.ACTION_AUDIO_BECOMING_NOISY));
       receiverRegistered = true;
     } else if (!enabled && receiverRegistered) {
       context.unregisterReceiver(receiver);

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

@@ -74,7 +74,7 @@ public StreamVolumeManager(Context context, Handler eventHandler, Listener liste
     VolumeChangeReceiver receiver = new VolumeChangeReceiver();
     IntentFilter filter = new IntentFilter(VOLUME_CHANGED_ACTION);
     try {
-      Util.registerReceiverNotExported(applicationContext, receiver, filter);
+      applicationContext.registerReceiver(receiver, filter);
       this.receiver = receiver;
     } catch (RuntimeException e) {
       Log.w(TAG, "Error registering stream volume receiver", e);

library/core/src/main/java/com/google/android/exoplayer2/audio/AudioCapabilities.java

@@ -88,8 +88,8 @@ public final class AudioCapabilities {
   @SuppressWarnings("InlinedApi")
   public static AudioCapabilities getCapabilities(Context context) {
     Intent intent =
-        Util.registerReceiverNotExported(
-            context, /* receiver= */ null, new IntentFilter(AudioManager.ACTION_HDMI_AUDIO_PLUG));
+        context.registerReceiver(
+            /* receiver= */ null, new IntentFilter(AudioManager.ACTION_HDMI_AUDIO_PLUG));
     return getCapabilities(context, intent);
   }
 

library/core/src/main/java/com/google/android/exoplayer2/audio/AudioCapabilitiesReceiver.java

@@ -91,7 +91,9 @@ public AudioCapabilities register() {
     @Nullable Intent stickyIntent = null;
     if (receiver != null) {
       IntentFilter intentFilter = new IntentFilter(AudioManager.ACTION_HDMI_AUDIO_PLUG);
-      stickyIntent = Util.registerReceiverNotExported(context, receiver, intentFilter, handler);
+      stickyIntent =
+          context.registerReceiver(
+              receiver, intentFilter, /* broadcastPermission= */ null, handler);
     }
     audioCapabilities = AudioCapabilities.getCapabilities(context, stickyIntent);
     return audioCapabilities;

library/core/src/main/java/com/google/android/exoplayer2/scheduler/Requirements.java

@@ -182,8 +182,8 @@ public boolean checkRequirements(Context context) {
   private boolean isDeviceCharging(Context context) {
     @Nullable
     Intent batteryStatus =
-        Util.registerReceiverNotExported(
-            context, /* receiver= */ null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
+        context.registerReceiver(
+            /* receiver= */ null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
     if (batteryStatus == null) {
       return false;
     }
@@ -201,8 +201,8 @@ private boolean isDeviceIdle(Context context) {
   }
 
   private boolean isStorageNotLow(Context context) {
-    return Util.registerReceiverNotExported(
-            context, /* receiver= */ null, new IntentFilter(Intent.ACTION_DEVICE_STORAGE_LOW))
+    return context.registerReceiver(
+            /* receiver= */ null, new IntentFilter(Intent.ACTION_DEVICE_STORAGE_LOW))
         == null;
   }
 

library/core/src/main/java/com/google/android/exoplayer2/scheduler/RequirementsWatcher.java

@@ -109,7 +109,7 @@ public RequirementsWatcher(Context context, Listener listener, Requirements requ
       filter.addAction(Intent.ACTION_DEVICE_STORAGE_OK);
     }
     receiver = new DeviceStatusChangeReceiver();
-    Util.registerReceiverNotExported(context, receiver, filter, handler);
+    context.registerReceiver(receiver, filter, /* broadcastPermission= */ null, handler);
     return notMetRequirements;
   }