Merge "Fix potential NPE when preference is null" am: 2b6a72ba1f am: b5e5983379 am: e754249f83

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2256881

Change-Id: Ic7c7c34dae8b03734ce5b381a862560cd91dedfb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/packages/SettingsLib/src/com/android/settingslib/core/AbstractPreferenceController.java b/packages/SettingsLib/src/com/android/settingslib/core/AbstractPreferenceController.java
index 988055e7d8db..9567a3b38896 100644
--- a/packages/SettingsLib/src/com/android/settingslib/core/AbstractPreferenceController.java
+++ b/packages/SettingsLib/src/com/android/settingslib/core/AbstractPreferenceController.java
@@ -41,8 +41,10 @@ public abstract class AbstractPreferenceController {
             setVisible(screen, prefKey, true /* visible */);
             if (this instanceof Preference.OnPreferenceChangeListener) {
                 final Preference preference = screen.findPreference(prefKey);
-                preference.setOnPreferenceChangeListener(
-                        (Preference.OnPreferenceChangeListener) this);
+                if (preference != null) {
+                    preference.setOnPreferenceChangeListener(
+                            (Preference.OnPreferenceChangeListener) this);
+                }
             }
         } else {
             setVisible(screen, prefKey, false /* visible */);