diff --git a/LocationUpdatesForegroundService/app/src/main/java/com/google/android/gms/location/sample/locationupdatesforegroundservice/MainActivity.java b/LocationUpdatesForegroundService/app/src/main/java/com/google/android/gms/location/sample/locationupdatesforegroundservice/MainActivity.java
index 5244c7a7..ab5573af 100644
--- a/LocationUpdatesForegroundService/app/src/main/java/com/google/android/gms/location/sample/locationupdatesforegroundservice/MainActivity.java
+++ b/LocationUpdatesForegroundService/app/src/main/java/com/google/android/gms/location/sample/locationupdatesforegroundservice/MainActivity.java
@@ -135,8 +135,14 @@ protected void onCreate(Bundle savedInstanceState) {
     @Override
     protected void onStart() {
         super.onStart();
-        PreferenceManager.getDefaultSharedPreferences(this)
-                .registerOnSharedPreferenceChangeListener(this);
+        
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
+        SharedPreferences.OnSharedPreferenceChangeListener listener = new SharedPreferences.OnSharedPreferenceChangeListener() {
+            public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
+                // Implementation
+            }
+        };
+        prefs.registerOnSharedPreferenceChangeListener(listener);
 
         mRequestLocationUpdatesButton = (Button) findViewById(R.id.request_location_updates_button);
         mRemoveLocationUpdatesButton = (Button) findViewById(R.id.remove_location_updates_button);