diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 7ec50c0674..cb41231c1a 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -60,6 +60,9 @@
         `ImaServerSideAdInsertionMediaSource.AdsLoader.Builder` to request
         focusing the skip button on TV devices and set it to true by default.
     *   Bump IMA SDK version to 3.29.0.
+*   Demo app
+    *   Request notification permission for download notifications at runtime
+        ([#10884](https://github.com/google/ExoPlayer/issues/10884)).
 
 ### 1.0.0-beta03 (2022-11-22)
 
diff --git a/demos/main/src/main/AndroidManifest.xml b/demos/main/src/main/AndroidManifest.xml
index 401d73a8e6..21d07e4ee5 100644
--- a/demos/main/src/main/AndroidManifest.xml
+++ b/demos/main/src/main/AndroidManifest.xml
@@ -23,6 +23,7 @@
   <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
   <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
   <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
+  <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
 
   <uses-feature android:name="android.software.leanback" android:required="false"/>
   <uses-feature android:name="android.hardware.touchscreen" android:required="false"/>
diff --git a/demos/main/src/main/java/androidx/media3/demo/main/SampleChooserActivity.java b/demos/main/src/main/java/androidx/media3/demo/main/SampleChooserActivity.java
index fc7144dc91..ef01b148ca 100644
--- a/demos/main/src/main/java/androidx/media3/demo/main/SampleChooserActivity.java
+++ b/demos/main/src/main/java/androidx/media3/demo/main/SampleChooserActivity.java
@@ -19,6 +19,7 @@ import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Preconditions.checkNotNull;
 import static com.google.common.base.Preconditions.checkState;
 
+import android.Manifest;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
@@ -41,8 +42,10 @@ import android.widget.ExpandableListView.OnChildClickListener;
 import android.widget.ImageButton;
 import android.widget.TextView;
 import android.widget.Toast;
+import androidx.annotation.DoNotInline;
 import androidx.annotation.Nullable;
 import androidx.annotation.OptIn;
+import androidx.annotation.RequiresApi;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.media3.common.MediaItem;
 import androidx.media3.common.MediaItem.ClippingConfiguration;
@@ -76,6 +79,7 @@ public class SampleChooserActivity extends AppCompatActivity
   private static final String TAG = "SampleChooserActivity";
   private static final String GROUP_POSITION_PREFERENCE_KEY = "sample_chooser_group_position";
   private static final String CHILD_POSITION_PREFERENCE_KEY = "sample_chooser_child_position";
+  private static final int POST_NOTIFICATION_PERMISSION_REQUEST_CODE = 100;
 
   private String[] uris;
   private boolean useExtensionRenderers;
@@ -83,6 +87,8 @@ public class SampleChooserActivity extends AppCompatActivity
   private SampleAdapter sampleAdapter;
   private MenuItem preferExtensionDecodersMenuItem;
   private ExpandableListView sampleListView;
+  @Nullable private MediaItem downloadMediaItemWaitingForNotificationPermission;
+  private boolean notificationPermissionToastShown;
 
   @Override
   public void onCreate(Bundle savedInstanceState) {
@@ -172,12 +178,34 @@ public class SampleChooserActivity extends AppCompatActivity
   public void onRequestPermissionsResult(
       int requestCode, String[] permissions, int[] grantResults) {
     super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+    if (requestCode == POST_NOTIFICATION_PERMISSION_REQUEST_CODE) {
+      handlePostNotificationPermissionGrantResults(grantResults);
+    } else {
+      handleExternalStoragePermissionGrantResults(grantResults);
+    }
+  }
+
+  private void handlePostNotificationPermissionGrantResults(int[] grantResults) {
+    if (!notificationPermissionToastShown
+        && (grantResults.length == 0 || grantResults[0] != PackageManager.PERMISSION_GRANTED)) {
+      Toast.makeText(
+              getApplicationContext(), R.string.post_notification_not_granted, Toast.LENGTH_LONG)
+          .show();
+      notificationPermissionToastShown = true;
+    }
+    if (downloadMediaItemWaitingForNotificationPermission != null) {
+      // Download with or without permission to post notifications.
+      toggleDownload(downloadMediaItemWaitingForNotificationPermission);
+      downloadMediaItemWaitingForNotificationPermission = null;
+    }
+  }
+
+  private void handleExternalStoragePermissionGrantResults(int[] grantResults) {
     if (grantResults.length == 0) {
       // Empty results are triggered if a permission is requested while another request was already
       // pending and can be safely ignored in this case.
       return;
-    }
-    if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+    } else if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
       loadSample();
     } else {
       Toast.makeText(getApplicationContext(), R.string.sample_list_load_error, Toast.LENGTH_LONG)
@@ -244,15 +272,26 @@ public class SampleChooserActivity extends AppCompatActivity
     if (downloadUnsupportedStringId != 0) {
       Toast.makeText(getApplicationContext(), downloadUnsupportedStringId, Toast.LENGTH_LONG)
           .show();
+    } else if (!notificationPermissionToastShown
+        && Util.SDK_INT >= 33
+        && checkSelfPermission(Api33.getPostNotificationPermissionString())
+            != PackageManager.PERMISSION_GRANTED) {
+      downloadMediaItemWaitingForNotificationPermission = playlistHolder.mediaItems.get(0);
+      requestPermissions(
+          new String[] {Api33.getPostNotificationPermissionString()},
+          /* requestCode= */ POST_NOTIFICATION_PERMISSION_REQUEST_CODE);
     } else {
-      RenderersFactory renderersFactory =
-          DemoUtil.buildRenderersFactory(
-              /* context= */ this, isNonNullAndChecked(preferExtensionDecodersMenuItem));
-      downloadTracker.toggleDownload(
-          getSupportFragmentManager(), playlistHolder.mediaItems.get(0), renderersFactory);
+      toggleDownload(playlistHolder.mediaItems.get(0));
     }
   }
 
+  private void toggleDownload(MediaItem mediaItem) {
+    RenderersFactory renderersFactory =
+        DemoUtil.buildRenderersFactory(
+            /* context= */ this, isNonNullAndChecked(preferExtensionDecodersMenuItem));
+    downloadTracker.toggleDownload(getSupportFragmentManager(), mediaItem, renderersFactory);
+  }
+
   private int getDownloadUnsupportedStringId(PlaylistHolder playlistHolder) {
     if (playlistHolder.mediaItems.size() > 1) {
       return R.string.download_playlist_unsupported;
@@ -630,4 +669,13 @@ public class SampleChooserActivity extends AppCompatActivity
       this.playlists = new ArrayList<>();
     }
   }
+
+  @RequiresApi(33)
+  private static class Api33 {
+
+    @DoNotInline
+    public static String getPostNotificationPermissionString() {
+      return Manifest.permission.POST_NOTIFICATIONS;
+    }
+  }
 }
diff --git a/demos/main/src/main/res/values/strings.xml b/demos/main/src/main/res/values/strings.xml
index 49441ef7da..ce9c90d0c2 100644
--- a/demos/main/src/main/res/values/strings.xml
+++ b/demos/main/src/main/res/values/strings.xml
@@ -45,6 +45,8 @@
 
   <string name="sample_list_load_error">One or more sample lists failed to load</string>
 
+  <string name="post_notification_not_granted">Notifications suppressed. Grant permission to see download notifications.</string>
+
   <string name="download_start_error">Failed to start download</string>
 
   <string name="download_start_error_offline_license">Failed to obtain offline license</string>