Fix or suppress nullness warnings introduced by checkerframework 3.7.0

PiperOrigin-RevId: 340826532

library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerNotificationManager.java

@@ -610,10 +610,12 @@ public class PlayerNotificationManager {
     controlDispatcher = new DefaultControlDispatcher();
     window = new Timeline.Window();
     instanceId = instanceIdCounter++;
-    //noinspection Convert2MethodRef
-    mainHandler =
-        Util.createHandler(
-            Looper.getMainLooper(), msg -> PlayerNotificationManager.this.handleMessage(msg));
+    // This fails the nullness checker because handleMessage() is 'called' while `this` is still
+    // @UnderInitialization. No tasks are scheduled on mainHandler before the constructor completes,
+    // so this is safe and we can suppress the warning.
+    @SuppressWarnings("nullness:methodref.receiver.bound.invalid")
+    Handler mainHandler = Util.createHandler(Looper.getMainLooper(), this::handleMessage);
+    this.mainHandler = mainHandler;
     notificationManager = NotificationManagerCompat.from(context);
     playerListener = new PlayerListener();
     notificationBroadcastReceiver = new NotificationBroadcastReceiver();

library/ui/src/main/java/com/google/android/exoplayer2/ui/StyledPlayerControlView.java

@@ -1920,7 +1920,7 @@ public class StyledPlayerControlView extends FrameLayout {
     }
   }
 
-  private class SettingViewHolder extends RecyclerView.ViewHolder {
+  private final class SettingViewHolder extends RecyclerView.ViewHolder {
     private final TextView mainTextView;
     private final TextView subTextView;
     private final ImageView iconView;
@@ -1930,8 +1930,7 @@ public class StyledPlayerControlView extends FrameLayout {
       mainTextView = itemView.findViewById(R.id.exo_main_text);
       subTextView = itemView.findViewById(R.id.exo_sub_text);
       iconView = itemView.findViewById(R.id.exo_icon);
-      itemView.setOnClickListener(
-          v -> onSettingViewClicked(SettingViewHolder.this.getAdapterPosition()));
+      itemView.setOnClickListener(v -> onSettingViewClicked(getAdapterPosition()));
     }
   }
 
@@ -1969,7 +1968,7 @@ public class StyledPlayerControlView extends FrameLayout {
     }
   }
 
-  private class SubSettingViewHolder extends RecyclerView.ViewHolder {
+  private final class SubSettingViewHolder extends RecyclerView.ViewHolder {
     private final TextView textView;
     private final View checkView;
 
@@ -1977,8 +1976,7 @@ public class StyledPlayerControlView extends FrameLayout {
       super(itemView);
       textView = itemView.findViewById(R.id.exo_text);
       checkView = itemView.findViewById(R.id.exo_check);
-      itemView.setOnClickListener(
-          v -> onSubSettingViewClicked(SubSettingViewHolder.this.getAdapterPosition()));
+      itemView.setOnClickListener(v -> onSubSettingViewClicked(getAdapterPosition()));
     }
   }