Messaging: Nullability

Change-Id: I8bcde2a868a9c8989971d056be24ff4986e4f8f3

src/com/android/messaging/ui/conversation/ConversationMessageBubbleView.java

@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2015 The Android Open Source Project
+ * Copyright (C) 2024 The LineageOS Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,6 +24,8 @@ import android.util.AttributeSet;
 import android.view.ViewGroup;
 import android.widget.LinearLayout;
 
+import androidx.annotation.NonNull;
+
 import com.android.messaging.R;
 import com.android.messaging.annotation.VisibleForAnimation;
 import com.android.messaging.datamodel.data.ConversationMessageBubbleData;
@@ -104,11 +107,11 @@ public class ConversationMessageBubbleView extends LinearLayout {
         mAnimator.setDuration(UiUtils.MEDIAPICKER_TRANSITION_DURATION);
         mAnimator.addListener(new AnimatorListener() {
             @Override
-            public void onAnimationStart(Animator animator) {
+            public void onAnimationStart(@NonNull Animator animator) {
             }
 
             @Override
-            public void onAnimationEnd(Animator animator) {
+            public void onAnimationEnd(@NonNull Animator animator) {
                 mAnimator = null;
                 mMorphedWidth = 0;
                 // Allow the bubble to resize if, for example, the status text changed during
@@ -120,11 +123,11 @@ public class ConversationMessageBubbleView extends LinearLayout {
             }
 
             @Override
-            public void onAnimationCancel(Animator animator) {
+            public void onAnimationCancel(@NonNull Animator animator) {
             }
 
             @Override
-            public void onAnimationRepeat(Animator animator) {
+            public void onAnimationRepeat(@NonNull Animator animator) {
             }
         });
         mAnimator.start();