Add a null check for digitsHint.

Bug: 77908301
Test: listnr
PiperOrigin-RevId: 195479105
Change-Id: Ieb64d5df486392b9bc1f6e9bbd340dc18e7b6e26
diff --git a/java/com/android/dialer/dialpadview/DialpadFragment.java b/java/com/android/dialer/dialpadview/DialpadFragment.java
index c45c776..d48870d 100644
--- a/java/com/android/dialer/dialpadview/DialpadFragment.java
+++ b/java/com/android/dialer/dialpadview/DialpadFragment.java
@@ -477,7 +477,13 @@
       return;
     }
     digits.setContentDescription(null);
-    digitsHint.setVisibility(View.GONE);
+
+    // TOOD(77908301): Investigate why this is the case
+    // It's not clear why digitsHint would be null when digits is initialized as the time, so adding
+    // a todo to investigate why.
+    if (digitsHint != null) {
+      digitsHint.setVisibility(View.GONE);
+    }
   }
 
   /**