Conditionally show settings.

Change-Id: I8e62ed6e2515b76de73d3d25adcfb121f809c646
diff --git a/res/xml/app_notification_settings.xml b/res/xml/app_notification_settings.xml
index 6e27a07..5f00caf 100644
--- a/res/xml/app_notification_settings.xml
+++ b/res/xml/app_notification_settings.xml
@@ -30,7 +30,12 @@
     <Preference
             android:key="app_settings"
             android:title="@string/app_notification_preferences"
-            android:order="5"
+            android:order="2"
             android:persistent="false" />
 
+    <PreferenceCategory
+            android:key="categories"
+            android:title="@string/notification_topic_categories"
+            android:order="3" />
+
 </PreferenceScreen>
diff --git a/res/xml/topic_notification_settings.xml b/res/xml/topic_notification_settings.xml
index 174c273..d5f28b3 100644
--- a/res/xml/topic_notification_settings.xml
+++ b/res/xml/topic_notification_settings.xml
@@ -21,7 +21,7 @@
     <!-- Importance -->
     <com.android.settings.notification.ImportanceSeekBarPreference
             android:key="importance"
-            android:title="@string/app_notification_importance_title"
+            android:title="@string/notification_importance_title"
             android:order="1"
             android:persistent="false" />