Ensure TalkBack announces the selected playback speed in the UI menu

Issue: google/ExoPlayer#10298
#minor-release
PiperOrigin-RevId: 457991028

RELEASENOTES.md

@@ -18,6 +18,10 @@
         `MetadataRenderer(MetadataOutput, Looper,
         MetadataDecoderFactory, boolean)` to specify whether the renderer will
         output metadata early or in sync with the player position.
+*   UI:
+    *   Ensure TalkBack announces the currently active speed option in the
+        playback controls menu
+        ([#10298](https://github.com/google/ExoPlayer/issues/10298)).
 *   RTSP:
     *   Add RTP reader for H263
         ([#63](https://github.com/androidx/media/pull/63)).

libraries/ui/src/main/java/androidx/media3/ui/PlayerControlView.java

@@ -1811,7 +1811,13 @@ public class PlayerControlView extends FrameLayout {
       if (position < playbackSpeedTexts.length) {
         holder.textView.setText(playbackSpeedTexts[position]);
       }
-      holder.checkView.setVisibility(position == selectedIndex ? VISIBLE : INVISIBLE);
+      if (position == selectedIndex) {
+        holder.itemView.setSelected(true);
+        holder.checkView.setVisibility(VISIBLE);
+      } else {
+        holder.itemView.setSelected(false);
+        holder.checkView.setVisibility(INVISIBLE);
+      }
       holder.itemView.setOnClickListener(
           v -> {
             if (position != selectedIndex) {