Merge pull request #183 from jasper-apps:bugfix/make-download-notification-appear-immediately

PiperOrigin-RevId: 482165983
(cherry picked from commit 405455b0)

library/core/src/main/java/com/google/android/exoplayer2/ui/DownloadNotificationHelper.java

@@ -15,17 +15,23 @@
  */
 package com.google.android.exoplayer2.ui;
 
+import static androidx.core.app.NotificationCompat.FOREGROUND_SERVICE_IMMEDIATE;
+
+import android.annotation.SuppressLint;
 import android.app.Notification;
 import android.app.PendingIntent;
 import android.content.Context;
+import androidx.annotation.DoNotInline;
 import androidx.annotation.DrawableRes;
 import androidx.annotation.Nullable;
+import androidx.annotation.RequiresApi;
 import androidx.annotation.StringRes;
 import androidx.core.app.NotificationCompat;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.core.R;
 import com.google.android.exoplayer2.offline.Download;
 import com.google.android.exoplayer2.scheduler.Requirements;
+import com.google.android.exoplayer2.util.Util;
 import java.util.List;
 
 /** Helper for creating download notifications. */
@@ -236,6 +242,19 @@ public final class DownloadNotificationHelper {
     notificationBuilder.setProgress(maxProgress, currentProgress, indeterminateProgress);
     notificationBuilder.setOngoing(ongoing);
     notificationBuilder.setShowWhen(showWhen);
+    if (Util.SDK_INT >= 31) {
+      Api31.setForegroundServiceBehavior(notificationBuilder);
+    }
     return notificationBuilder.build();
   }
+
+  @RequiresApi(31)
+  private static final class Api31 {
+    @SuppressLint("WrongConstant") // TODO(b/254277605): remove lint suppression
+    @DoNotInline
+    public static void setForegroundServiceBehavior(
+        NotificationCompat.Builder notificationBuilder) {
+      notificationBuilder.setForegroundServiceBehavior(FOREGROUND_SERVICE_IMMEDIATE);
+    }
+  }
 }