From 13c7e686463bfa54163b310e5ed7371aa9c8488d Mon Sep 17 00:00:00 2001
From: Fan Zhang <zhfan@google.com>
Date: Wed, 23 May 2018 13:21:31 -0700
Subject: [PATCH] Fix a NPE when highlighting fingerprint row.

If fingerprint pref is not bound to UI yet, then its view is null so we
can't do any ripple animation on it.

Change-Id: I0ccca2dfdb471ab520677c6cd206205230959b27
Fixes: 80147956
Test: manual
---
 src/com/android/settings/fingerprint/FingerprintSettings.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/com/android/settings/fingerprint/FingerprintSettings.java b/src/com/android/settings/fingerprint/FingerprintSettings.java
index 5e301dafdc4..0fd3f8be338 100644
--- a/src/com/android/settings/fingerprint/FingerprintSettings.java
+++ b/src/com/android/settings/fingerprint/FingerprintSettings.java
@@ -605,6 +605,10 @@ public class FingerprintSettings extends SubSettings {
             final Drawable highlight = getHighlightDrawable();
             if (highlight != null && fpref != null) {
                 final View view = fpref.getView();
+                if (view == null) {
+                    // FingerprintPreference is not bound to UI yet, so view is null.
+                    return;
+                }
                 final int centerX = view.getWidth() / 2;
                 final int centerY = view.getHeight() / 2;
                 highlight.setHotspot(centerX, centerY);