diff --git a/res/xml/accessibility_daltonizer_settings.xml b/res/xml/accessibility_daltonizer_settings.xml
index 62c0dfc..9f08400 100644
--- a/res/xml/accessibility_daltonizer_settings.xml
+++ b/res/xml/accessibility_daltonizer_settings.xml
@@ -27,7 +27,6 @@
         android:entries="@array/daltonizer_type_entries"
         android:entryValues="@array/daltonizer_type_values"
         android:key="type"
-        android:persistent="false"
         android:summary="%s"
         android:title="@string/daltonizer_type" />
 
diff --git a/res/xml/accessibility_settings.xml b/res/xml/accessibility_settings.xml
index a59fbdc..32b78c5 100644
--- a/res/xml/accessibility_settings.xml
+++ b/res/xml/accessibility_settings.xml
@@ -55,8 +55,7 @@
         <SwitchPreference
                 android:key="toggle_high_text_contrast_preference"
                 android:title="@string/accessibility_toggle_high_text_contrast_preference_title"
-                android:summary="@string/experimental_preference"
-                android:persistent="false"/>
+                android:summary="@string/experimental_preference"/>
 
         <SwitchPreference
                 android:key="toggle_power_button_ends_call_preference"
diff --git a/res/xml/app_notification_settings.xml b/res/xml/app_notification_settings.xml
index ccf242c..a60eafc 100644
--- a/res/xml/app_notification_settings.xml
+++ b/res/xml/app_notification_settings.xml
@@ -54,6 +54,7 @@
             android:title="@string/app_notification_block_title"
             android:summary="@string/app_notification_block_summary"
             android:order="7" />
+
     <PreferenceCategory
             android:key="categories"
             android:title="@string/notification_topic_categories"
diff --git a/res/xml/application_settings.xml b/res/xml/application_settings.xml
index 1dfdce8..1afe243 100644
--- a/res/xml/application_settings.xml
+++ b/res/xml/application_settings.xml
@@ -51,14 +51,12 @@
             android:key="toggle_advanced_settings"
             android:title="@string/advanced_settings"
             android:summaryOff="@string/advanced_settings_summary"
-            android:summaryOn="@string/advanced_settings_summary"
-            android:persistent="false" />
+            android:summaryOn="@string/advanced_settings_summary" />
 
     <ListPreference
         android:key="app_install_location"
         android:title="@string/app_install_location_title"
         android:summary="@string/app_install_location_summary"
-        android:persistent="false"
         android:entries="@array/app_install_location_entries"
         android:entryValues="@array/app_install_location_values"/>
 
diff --git a/res/xml/battery_saver_settings.xml b/res/xml/battery_saver_settings.xml
index cc6d9af..832da58 100644
--- a/res/xml/battery_saver_settings.xml
+++ b/res/xml/battery_saver_settings.xml
@@ -22,8 +22,7 @@
     <DropDownPreference
             android:key="turn_on_automatically"
             android:title="@string/battery_saver_turn_on_automatically_title"
-            android:summary="%s"
-            android:persistent="false" />
+            android:summary="%s" />
 
     <!-- Feature description text -->
     <com.android.settings.fuelgauge.WallOfTextPreference
diff --git a/res/xml/captioning_settings.xml b/res/xml/captioning_settings.xml
index 30eaa51..5ba89cf 100644
--- a/res/xml/captioning_settings.xml
+++ b/res/xml/captioning_settings.xml
@@ -26,7 +26,6 @@
         android:title="@string/captioning_standard_options_title" >
         <com.android.settings.accessibility.LocalePreference
             android:key="captioning_locale"
-            android:persistent="false"
             android:summary="%s"
             android:title="@string/captioning_locale" />
 
@@ -34,13 +33,11 @@
             android:entries="@array/captioning_font_size_selector_titles"
             android:entryValues="@array/captioning_font_size_selector_values"
             android:key="captioning_font_size"
-            android:persistent="false"
             android:summary="%s"
             android:title="@string/captioning_text_size" />
 
         <com.android.settings.accessibility.PresetPreference
             android:key="captioning_preset"
-            android:persistent="false"
             android:title="@string/captioning_preset" />
     </PreferenceCategory>
     <PreferenceCategory
@@ -50,47 +47,38 @@
             android:entries="@array/captioning_typeface_selector_titles"
             android:entryValues="@array/captioning_typeface_selector_values"
             android:key="captioning_typeface"
-            android:persistent="false"
             android:summary="%s"
             android:title="@string/captioning_typeface" />
 
         <com.android.settings.accessibility.ColorPreference
             android:key="captioning_foreground_color"
-            android:persistent="false"
             android:title="@string/captioning_foreground_color" />
         <com.android.settings.accessibility.ColorPreference
             android:dependency="captioning_foreground_color"
             android:key="captioning_foreground_opacity"
-            android:persistent="false"
             android:title="@string/captioning_foreground_opacity" />
 
         <com.android.settings.accessibility.EdgeTypePreference
             android:key="captioning_edge_type"
-            android:persistent="false"
             android:title="@string/captioning_edge_type" />
 
         <com.android.settings.accessibility.ColorPreference
             android:dependency="captioning_edge_type"
             android:key="captioning_edge_color"
-            android:persistent="false"
             android:title="@string/captioning_edge_color" />
         <com.android.settings.accessibility.ColorPreference
             android:key="captioning_background_color"
-            android:persistent="false"
             android:title="@string/captioning_background_color" />
         <com.android.settings.accessibility.ColorPreference
             android:dependency="captioning_background_color"
             android:key="captioning_background_opacity"
-            android:persistent="false"
             android:title="@string/captioning_background_opacity" />
         <com.android.settings.accessibility.ColorPreference
             android:key="captioning_window_color"
-            android:persistent="false"
             android:title="@string/captioning_window_color" />
         <com.android.settings.accessibility.ColorPreference
             android:dependency="captioning_window_color"
             android:key="captioning_window_opacity"
-            android:persistent="false"
             android:title="@string/captioning_window_opacity" />
     </PreferenceCategory>
 
diff --git a/res/xml/configure_notification_settings.xml b/res/xml/configure_notification_settings.xml
index 4ba0d39..88d42df 100644
--- a/res/xml/configure_notification_settings.xml
+++ b/res/xml/configure_notification_settings.xml
@@ -22,15 +22,13 @@
     <!-- Pulse notification light -->
     <SwitchPreference
             android:key="notification_pulse"
-            android:title="@string/notification_pulse_title"
-            android:persistent="false" />
+            android:title="@string/notification_pulse_title" />
 
     <!-- When device is locked -->
     <com.android.settingslib.RestrictedDropDownPreference
             android:key="lock_screen_notifications"
             android:title="@string/lock_screen_notifications_title"
-            android:summary="%s"
-            android:persistent="false" />
+            android:summary="%s" />
 
     <PreferenceCategory
         android:key="advanced"
diff --git a/res/xml/development_prefs.xml b/res/xml/development_prefs.xml
index 6335c4e..ee9d2f8 100644
--- a/res/xml/development_prefs.xml
+++ b/res/xml/development_prefs.xml
@@ -64,7 +64,6 @@
         android:key="night_mode"
         android:title="@string/night_mode_title"
         android:summary="%s"
-        android:persistent="false"
         android:entries="@array/night_mode_entries"
         android:entryValues="@array/night_mode_values" />
 
@@ -77,8 +76,7 @@
     <com.android.settings.ColorModePreference
         android:key="color_mode"
         android:title="@string/picture_color_mode"
-        android:summary="@string/picture_color_mode_desc"
-        android:persistent="false" />
+        android:summary="@string/picture_color_mode_desc" />
 
     <ListPreference
         android:key="select_webview_provider"
@@ -89,8 +87,7 @@
     <SwitchPreference
         android:key="color_temperature"
         android:title="@string/color_temperature"
-        android:summary="@string/color_temperature_desc"
-        android:persistent="false" />
+        android:summary="@string/color_temperature_desc" />
 
     <PreferenceCategory android:key="debug_debugging_category"
             android:title="@string/debug_debugging_category">
@@ -220,28 +217,24 @@
         <ListPreference
             android:key="window_animation_scale"
             android:title="@string/window_animation_scale_title"
-            android:persistent="false"
             android:entries="@array/window_animation_scale_entries"
             android:entryValues="@array/window_animation_scale_values" />
 
         <ListPreference
             android:key="transition_animation_scale"
             android:title="@string/transition_animation_scale_title"
-            android:persistent="false"
             android:entries="@array/transition_animation_scale_entries"
             android:entryValues="@array/transition_animation_scale_values" />
 
         <ListPreference
             android:key="animator_duration_scale"
             android:title="@string/animator_duration_scale_title"
-            android:persistent="false"
             android:entries="@array/animator_duration_scale_entries"
             android:entryValues="@array/animator_duration_scale_values" />
 
         <ListPreference
             android:key="overlay_display_devices"
             android:title="@string/overlay_display_devices_title"
-            android:persistent="false"
             android:entries="@array/overlay_display_devices_entries"
             android:entryValues="@array/overlay_display_devices_values" />
 
@@ -268,14 +261,12 @@
         <ListPreference
                 android:key="debug_hw_overdraw"
                 android:title="@string/debug_hw_overdraw"
-                android:persistent="false"
                 android:entries="@array/debug_hw_overdraw_entries"
                 android:entryValues="@array/debug_hw_overdraw_values" />
 
         <ListPreference
                 android:key="show_non_rect_clip"
                 android:title="@string/show_non_rect_clip"
-                android:persistent="false"
                 android:entries="@array/show_non_rect_clip_entries"
                 android:entryValues="@array/show_non_rect_clip_values" />
 
@@ -293,7 +284,6 @@
                 android:entries="@array/simulate_color_space_entries"
                 android:entryValues="@array/simulate_color_space_values"
                 android:key="simulate_color_space"
-                android:persistent="false"
                 android:summary="%s"
                 android:title="@string/simulate_color_space" />
 
@@ -325,14 +315,12 @@
         <ListPreference
             android:key="track_frame_time"
             android:title="@string/track_frame_time"
-            android:persistent="false"
             android:entries="@array/track_frame_time_entries"
             android:entryValues="@array/track_frame_time_values" />
 
         <ListPreference
             android:key="enable_opengl_traces"
             android:title="@string/enable_opengl_traces_title"
-            android:persistent="false"
             android:entries="@array/enable_opengl_traces_entries"
             android:entryValues="@array/enable_opengl_traces_values" />
 
@@ -349,7 +337,6 @@
         <ListPreference
             android:key="app_process_limit"
             android:title="@string/app_process_limit_title"
-            android:persistent="false"
             android:entries="@array/app_process_limit_entries"
             android:entryValues="@array/app_process_limit_values" />
 
diff --git a/res/xml/display_settings.xml b/res/xml/display_settings.xml
index 0543ac1..039cc40 100644
--- a/res/xml/display_settings.xml
+++ b/res/xml/display_settings.xml
@@ -30,8 +30,7 @@
                 android:key="auto_brightness"
                 android:title="@string/auto_brightness_title"
                 settings:keywords="@string/keywords_display_auto_brightness"
-                android:summary="@string/auto_brightness_summary"
-                android:persistent="false" />
+                android:summary="@string/auto_brightness_summary" />
 
         <!-- Hide night mode for now
         <ListPreference
@@ -39,7 +38,6 @@
             android:title="@string/night_mode_title"
             settings:keywords="@string/keywords_display_night_mode"
             android:summary="@string/night_mode_summary"
-            android:persistent="false"
             android:entries="@array/night_mode_entries"
             android:entryValues="@array/night_mode_values" /> -->
 
@@ -53,21 +51,18 @@
                 android:key="screen_timeout"
                 android:title="@string/screen_timeout"
                 android:summary="@string/screen_timeout_summary"
-                android:persistent="false"
                 android:entries="@array/screen_timeout_entries"
                 android:entryValues="@array/screen_timeout_values" />
 
         <SwitchPreference
                 android:key="camera_gesture"
                 android:title="@string/camera_gesture_title"
-                android:summary="@string/camera_gesture_desc"
-                android:persistent="false" />
+                android:summary="@string/camera_gesture_desc" />
 
         <SwitchPreference
                 android:key="camera_double_tap_power_gesture"
                 android:title="@string/camera_double_tap_power_gesture_title"
-                android:summary="@string/camera_double_tap_power_gesture_desc"
-                android:persistent="false" />
+                android:summary="@string/camera_double_tap_power_gesture_desc" />
 
         <PreferenceScreen
                 android:key="screensaver"
@@ -76,20 +71,17 @@
 
         <SwitchPreference
                 android:key="lift_to_wake"
-                android:title="@string/lift_to_wake_title"
-                android:persistent="false" />
+                android:title="@string/lift_to_wake_title" />
 
         <SwitchPreference
                 android:key="doze"
                 android:title="@string/doze_title"
-                android:summary="@string/doze_summary"
-                android:persistent="false" />
+                android:summary="@string/doze_summary" />
 
         <SwitchPreference
                 android:key="tap_to_wake"
                 android:title="@string/tap_to_wake"
-                android:summary="@string/tap_to_wake_summary"
-                android:persistent="false" />
+                android:summary="@string/tap_to_wake_summary" />
 
         <PreferenceScreen
                 android:key="font_size"
@@ -104,7 +96,6 @@
 
         <DropDownPreference
                 android:key="auto_rotate"
-                android:persistent="false"
                 android:summary="%s"
                 android:title="@string/display_auto_rotate_title" />
 
diff --git a/res/xml/installed_app_launch_settings.xml b/res/xml/installed_app_launch_settings.xml
index dee56ef..7342cc0 100644
--- a/res/xml/installed_app_launch_settings.xml
+++ b/res/xml/installed_app_launch_settings.xml
@@ -22,14 +22,12 @@
 
         <DropDownPreference
                 android:key="app_link_state"
-                android:persistent="false"
                 android:summary="%s"
                 android:title="@string/app_launch_open_domain_urls_title" />
 
         <com.android.settings.applications.AppDomainsPreference
                 android:key="app_launch_supported_domain_urls"
                 android:title="@string/app_launch_supported_domain_urls_title"
-                android:persistent="false"
                 android:dependency="app_link_state"
                 />
 
@@ -40,7 +38,6 @@
 
         <com.android.settings.applications.ClearDefaultsPreference
                 android:key="app_launch_clear_defaults"
-                android:persistent="false"
                 />
 
     </PreferenceCategory>
diff --git a/res/xml/language_settings.xml b/res/xml/language_settings.xml
index 9cc0145..dae20af 100644
--- a/res/xml/language_settings.xml
+++ b/res/xml/language_settings.xml
@@ -103,7 +103,6 @@
                 android:title="@string/vibrate_input_devices"
                 android:summaryOn="@string/vibrate_input_devices_summary"
                 android:summaryOff="@string/vibrate_input_devices_summary"
-                android:persistent="false"
                 />
 
     </PreferenceCategory>
diff --git a/res/xml/location_mode.xml b/res/xml/location_mode.xml
index 3627f11..b1b05bb 100644
--- a/res/xml/location_mode.xml
+++ b/res/xml/location_mode.xml
@@ -20,17 +20,14 @@
         <com.android.settings.location.RadioButtonPreference
             android:key="high_accuracy"
             android:title="@string/location_mode_high_accuracy_title"
-            android:summary="@string/location_mode_high_accuracy_description"
-            android:persistent="false" />
+            android:summary="@string/location_mode_high_accuracy_description" />
         <com.android.settings.location.RadioButtonPreference
             android:key="battery_saving"
             android:title="@string/location_mode_battery_saving_title"
-            android:summary="@string/location_mode_battery_saving_description"
-            android:persistent="false" />
+            android:summary="@string/location_mode_battery_saving_description" />
         <com.android.settings.location.RadioButtonPreference
             android:key="sensors_only"
             android:title="@string/location_mode_sensors_only_title"
-            android:summary="@string/location_mode_sensors_only_description"
-            android:persistent="false" />
+            android:summary="@string/location_mode_sensors_only_description" />
 
 </PreferenceScreen>
diff --git a/res/xml/location_scanning.xml b/res/xml/location_scanning.xml
index 74e6d3b..f82500b 100644
--- a/res/xml/location_scanning.xml
+++ b/res/xml/location_scanning.xml
@@ -21,14 +21,12 @@
             android:title="@string/location_scanning_wifi_always_scanning_title"
             android:summary="@string/location_scanning_wifi_always_scanning_description"
             android:defaultValue="true"
-            android:key="wifi_always_scanning"
-            android:persistent="false" />
+            android:key="wifi_always_scanning" />
 
         <SwitchPreference
             android:title="@string/location_scanning_bluetooth_always_scanning_title"
             android:summary="@string/location_scanning_bluetooth_always_scanning_description"
             android:defaultValue="true"
-            android:key="bluetooth_always_scanning"
-            android:persistent="false" />
+            android:key="bluetooth_always_scanning" />
 
 </PreferenceScreen>
diff --git a/res/xml/location_settings.xml b/res/xml/location_settings.xml
index d22d32a..9fd0826 100644
--- a/res/xml/location_settings.xml
+++ b/res/xml/location_settings.xml
@@ -31,7 +31,6 @@
             android:key="managed_profile_location_switch"
             android:title="@string/managed_profile_location_switch_title"
             settings:useAdminDisabledSummary="true"
-            android:persistent="false"
             android:enabled="false"
             android:selectable="true" />
 
diff --git a/res/xml/manage_assist.xml b/res/xml/manage_assist.xml
index 7669d26..97a06ea 100644
--- a/res/xml/manage_assist.xml
+++ b/res/xml/manage_assist.xml
@@ -28,14 +28,12 @@
     <SwitchPreference
         android:key="context"
         android:title="@string/assist_access_context_title"
-        android:summary="@string/assist_access_context_summary"
-        android:persistent="false"/>
+        android:summary="@string/assist_access_context_summary"/>
 
     <SwitchPreference
         android:key="screenshot"
         android:title="@string/assist_access_screenshot_title"
-        android:summary="@string/assist_access_screenshot_summary"
-        android:persistent="false"/>
+        android:summary="@string/assist_access_screenshot_summary"/>
 
     <com.android.settings.voice.VoiceInputListPreference
             android:key="voice_input_settings"
diff --git a/res/xml/other_sound_settings.xml b/res/xml/other_sound_settings.xml
index df113dc..66535e3 100644
--- a/res/xml/other_sound_settings.xml
+++ b/res/xml/other_sound_settings.xml
@@ -22,51 +22,43 @@
     <!-- Dial pad tones -->
     <SwitchPreference
             android:key="dial_pad_tones"
-            android:title="@string/dial_pad_tones_title"
-            android:persistent="false" />
+            android:title="@string/dial_pad_tones_title" />
 
     <!-- Screen locking sounds -->
     <SwitchPreference
             android:key="screen_locking_sounds"
-            android:title="@string/screen_locking_sounds_title"
-            android:persistent="false" />
+            android:title="@string/screen_locking_sounds_title" />
 
     <!-- Charging sounds -->
     <SwitchPreference
             android:key="charging_sounds"
-            android:title="@string/charging_sounds_title"
-            android:persistent="false" />
+            android:title="@string/charging_sounds_title" />
 
     <!-- Docking sounds -->
     <SwitchPreference
             android:key="docking_sounds"
-            android:title="@string/docking_sounds_title"
-            android:persistent="false" />
+            android:title="@string/docking_sounds_title" />
 
     <!-- Touch sounds -->
     <SwitchPreference
             android:key="touch_sounds"
-            android:title="@string/touch_sounds_title"
-            android:persistent="false" />
+            android:title="@string/touch_sounds_title" />
 
     <!-- Vibrate on touch -->
     <SwitchPreference
             android:key="vibrate_on_touch"
-            android:title="@string/vibrate_on_touch_title"
-            android:persistent="false" />
+            android:title="@string/vibrate_on_touch_title" />
 
     <!-- Dock speaker plays -->
     <DropDownPreference
             android:key="dock_audio_media"
             android:title="@string/dock_audio_media_title"
-            android:summary="%s"
-            android:persistent="false" />
+            android:summary="%s" />
 
     <!-- Emergency tone -->
     <DropDownPreference
             android:key="emergency_tone"
             android:title="@string/emergency_tone_title"
-            android:summary="%s"
-            android:persistent="false" />
+            android:summary="%s" />
 
 </PreferenceScreen>
diff --git a/res/xml/privacy_settings.xml b/res/xml/privacy_settings.xml
index 461d242..6a6b548 100644
--- a/res/xml/privacy_settings.xml
+++ b/res/xml/privacy_settings.xml
@@ -41,8 +41,7 @@
     <SwitchPreference
         android:key="auto_restore"
         android:title="@string/auto_restore_title"
-        android:summary="@string/auto_restore_summary"
-        android:persistent="false" />
+        android:summary="@string/auto_restore_summary" />
 
     <Preference
         android:key="backup_inactive"
diff --git a/res/xml/screen_pinning_settings.xml b/res/xml/screen_pinning_settings.xml
index 6727687..229c4ea 100644
--- a/res/xml/screen_pinning_settings.xml
+++ b/res/xml/screen_pinning_settings.xml
@@ -19,7 +19,6 @@
 
         <SwitchPreference
                 android:key="use_screen_lock"
-                android:title="@string/screen_pinning_unlock_none"
-                android:persistent="false" />
+                android:title="@string/screen_pinning_unlock_none" />
 
 </PreferenceScreen>
diff --git a/res/xml/security_settings_misc.xml b/res/xml/security_settings_misc.xml
index a437547..b225682 100644
--- a/res/xml/security_settings_misc.xml
+++ b/res/xml/security_settings_misc.xml
@@ -37,8 +37,7 @@
             android:persistent="false">
 
         <SwitchPreference android:key="show_password"
-                android:title="@string/show_password"
-                android:persistent="false"/>
+                android:title="@string/show_password"/>
 
     </PreferenceCategory>
 
@@ -55,8 +54,7 @@
         <com.android.settingslib.RestrictedSwitchPreference android:key="toggle_install_applications"
                 android:title="@string/install_applications"
                 android:summaryOff="@string/install_unknown_applications"
-                android:summaryOn="@string/install_unknown_applications"
-                android:persistent="false" />
+                android:summaryOn="@string/install_unknown_applications" />
 
     </PreferenceCategory>
 
diff --git a/res/xml/security_settings_password.xml b/res/xml/security_settings_password.xml
index d96ca4b..6c4d4ff 100644
--- a/res/xml/security_settings_password.xml
+++ b/res/xml/security_settings_password.xml
@@ -26,8 +26,7 @@
             android:key="unlock_set_or_change"
             android:title="@string/unlock_set_unlock_launch_picker_title"
             android:summary="@string/unlock_set_unlock_mode_password"
-            settings:keywords="@string/keywords_lockscreen"
-            android:persistent="false"/>
+            settings:keywords="@string/keywords_lockscreen" />
 
     </PreferenceCategory>
 
diff --git a/res/xml/security_settings_pattern.xml b/res/xml/security_settings_pattern.xml
index d3fd97d..3b463d8 100644
--- a/res/xml/security_settings_pattern.xml
+++ b/res/xml/security_settings_pattern.xml
@@ -26,8 +26,7 @@
             android:key="unlock_set_or_change"
             android:title="@string/unlock_set_unlock_launch_picker_title"
             android:summary="@string/unlock_set_unlock_mode_pattern"
-            settings:keywords="@string/keywords_lockscreen"
-            android:persistent="false"/>
+            settings:keywords="@string/keywords_lockscreen" />
 
     </PreferenceCategory>
 
diff --git a/res/xml/security_settings_pin.xml b/res/xml/security_settings_pin.xml
index ba19c43..404a2e4 100644
--- a/res/xml/security_settings_pin.xml
+++ b/res/xml/security_settings_pin.xml
@@ -26,8 +26,7 @@
             android:key="unlock_set_or_change"
             android:title="@string/unlock_set_unlock_launch_picker_title"
             android:summary="@string/unlock_set_unlock_mode_pin"
-            settings:keywords="@string/keywords_lockscreen"
-            android:persistent="false"/>
+            settings:keywords="@string/keywords_lockscreen" />
 
     </PreferenceCategory>
 
diff --git a/res/xml/sim_lock_settings.xml b/res/xml/sim_lock_settings.xml
index ee25fdf..0246ea2 100644
--- a/res/xml/sim_lock_settings.xml
+++ b/res/xml/sim_lock_settings.xml
@@ -21,7 +21,6 @@
     <SwitchPreference
             android:key="sim_toggle"
             android:title="@string/sim_pin_toggle"
-            android:persistent="false"
             android:summaryOn="@string/sim_lock_on"
             android:summaryOff="@string/sim_lock_off"/>
 
@@ -31,7 +30,6 @@
             android:title="@string/sim_pin_change"
             android:dialogTitle="@string/sim_change_pin"
             android:dialogMessage="@string/sim_enter_old"
-            android:persistent="false"
             android:positiveButtonText="@string/sim_enter_ok"
             android:negativeButtonText="@string/sim_enter_cancel"/>
 
diff --git a/res/xml/sound_settings.xml b/res/xml/sound_settings.xml
index 2b8ae13..47b4db1 100644
--- a/res/xml/sound_settings.xml
+++ b/res/xml/sound_settings.xml
@@ -47,14 +47,12 @@
         <!-- Also vibrate for calls -->
         <SwitchPreference
                 android:key="vibrate_when_ringing"
-                android:title="@string/vibrate_when_ringing_title"
-                android:persistent="false" />
+                android:title="@string/vibrate_when_ringing_title" />
 
         <!-- Master mono -->
         <SwitchPreference
                 android:key="master_mono"
                 android:title="@string/master_mono_title"
-                android:persistent="false"
                 android:summaryOn="@string/master_mono_on"
                 android:summaryOff="@string/master_mono_off" />
 
@@ -71,7 +69,6 @@
                 android:key="ringtone"
                 android:title="@string/ringtone_title"
                 android:dialogTitle="@string/ringtone_title"
-                android:persistent="false"
                 android:ringtoneType="ringtone" />
 
         <!-- Default notification ringtone -->
@@ -79,7 +76,6 @@
                 android:key="notification_ringtone"
                 android:title="@string/notification_ringtone_title"
                 android:dialogTitle="@string/notification_ringtone_title"
-                android:persistent="false"
                 android:ringtoneType="notification" />
 
         <!-- Default alarm ringtone -->
diff --git a/res/xml/tether_prefs.xml b/res/xml/tether_prefs.xml
index 7a70306..3a39d8a 100644
--- a/res/xml/tether_prefs.xml
+++ b/res/xml/tether_prefs.xml
@@ -18,13 +18,11 @@
 
     <SwitchPreference
         android:key="usb_tether_settings"
-        android:title="@string/usb_tethering_button_text"
-        android:persistent="false" />
+        android:title="@string/usb_tethering_button_text" />
 
     <SwitchPreference
         android:key="enable_wifi_ap"
-        android:title="@string/wifi_tether_checkbox_text"
-        android:persistent="false" />
+        android:title="@string/wifi_tether_checkbox_text" />
 
     <Preference
         android:key="wifi_ap_ssid_and_security"
@@ -33,7 +31,6 @@
 
     <SwitchPreference
         android:key="enable_bluetooth_tethering"
-        android:title="@string/bluetooth_tether_checkbox_text"
-        android:persistent="false" />
+        android:title="@string/bluetooth_tether_checkbox_text" />
 
 </PreferenceScreen>
diff --git a/res/xml/tts_engine_settings.xml b/res/xml/tts_engine_settings.xml
index 176bdbc..d00c102 100644
--- a/res/xml/tts_engine_settings.xml
+++ b/res/xml/tts_engine_settings.xml
@@ -19,7 +19,6 @@
         android:key="tts_default_lang"
         android:title="@string/tts_default_lang_title"
         android:summary="@string/tts_default_lang_summary"
-        android:persistent="false"
         android:order="100" />
 
     <Preference
diff --git a/res/xml/tts_settings.xml b/res/xml/tts_settings.xml
index dbdf469..e829710 100644
--- a/res/xml/tts_settings.xml
+++ b/res/xml/tts_settings.xml
@@ -28,7 +28,6 @@
             android:key="tts_default_rate"
             android:title="@string/tts_default_rate_title"
             android:summary="@string/tts_default_rate_summary"
-            android:persistent="false"
             android:defaultValue="50"
             android:max="400" />
         <SwitchPreference
diff --git a/res/xml/user_details_settings.xml b/res/xml/user_details_settings.xml
index 0b0c6d9..9bcc194 100644
--- a/res/xml/user_details_settings.xml
+++ b/res/xml/user_details_settings.xml
@@ -19,11 +19,10 @@
 
     <SwitchPreference
             android:key="enable_calling"
-            android:title="@string/user_enable_calling_sms"
-            android:persistent="false" />
+            android:title="@string/user_enable_calling_sms" />
     <com.android.settingslib.RestrictedPreference
             android:key="remove_user"
             android:title="@string/user_remove_user"
             settings:useAdminDisabledSummary="true" />
 
-</PreferenceScreen>
\ No newline at end of file
+</PreferenceScreen>
diff --git a/res/xml/wifi_configure_settings.xml b/res/xml/wifi_configure_settings.xml
index 15e524a..b99caf0 100644
--- a/res/xml/wifi_configure_settings.xml
+++ b/res/xml/wifi_configure_settings.xml
@@ -26,13 +26,11 @@
     <SwitchPreference
         android:key="notify_open_networks"
         android:title="@string/wifi_notify_open_networks"
-        android:summary="@string/wifi_notify_open_networks_summary"
-        android:persistent="false" />
+        android:summary="@string/wifi_notify_open_networks_summary" />
 
     <ListPreference
         android:key="sleep_policy"
         android:title="@string/wifi_setting_sleep_policy_title"
-        android:persistent="false"
         android:entries="@array/wifi_sleep_policy_entries"
         android:entryValues="@array/wifi_sleep_policy_values" />
 
@@ -40,14 +38,12 @@
         android:key="wifi_assistant"
         android:title="@string/wifi_automatically_connect_title"
         android:summary="@string/wifi_automatically_connect_summary"
-        android:dialogTitle="@string/wifi_select_assistant_dialog_title"
-        android:persistent="false" />
+        android:dialogTitle="@string/wifi_select_assistant_dialog_title" />
 
     <ListPreference
         android:key="frequency_band"
         android:title="@string/wifi_setting_frequency_band_title"
         android:summary="@string/wifi_setting_frequency_band_summary"
-        android:persistent="false"
         android:entries="@array/wifi_frequency_band_entries"
         android:entryValues="@array/wifi_frequency_band_values" />
 
diff --git a/res/xml/wireless_settings.xml b/res/xml/wireless_settings.xml
index d0d429a..0461bf8 100644
--- a/res/xml/wireless_settings.xml
+++ b/res/xml/wireless_settings.xml
@@ -21,14 +21,12 @@
     <SwitchPreference
         android:key="toggle_airplane"
         android:title="@string/airplane_mode"
-        android:persistent="false"
         android:disableDependentsState="true" />
 
     <SwitchPreference
         android:key="toggle_nfc"
         android:title="@string/nfc_quick_toggle_title"
-        android:summary="@string/nfc_quick_toggle_summary"
-        android:persistent="false" />
+        android:summary="@string/nfc_quick_toggle_summary" />
 
     <PreferenceScreen
         android:key="wifi_calling_settings"
diff --git a/res/xml/zen_mode_event_rule_settings.xml b/res/xml/zen_mode_event_rule_settings.xml
index 98e75ce..102d2a2 100644
--- a/res/xml/zen_mode_event_rule_settings.xml
+++ b/res/xml/zen_mode_event_rule_settings.xml
@@ -28,21 +28,18 @@
     <DropDownPreference
         android:key="calendar"
         android:title="@string/zen_mode_event_rule_calendar"
-        android:summary="%s"
-        android:persistent="false" />
+        android:summary="%s" />
 
     <!-- Where reply is -->
     <DropDownPreference
         android:key="reply"
         android:title="@string/zen_mode_event_rule_reply"
-        android:summary="%s"
-        android:persistent="false" />
+        android:summary="%s" />
 
     <!-- Zen mode -->
     <DropDownPreference
         android:key="zen_mode"
         android:title="@string/zen_mode_settings_title"
-        android:summary="%s"
-        android:persistent="false" />
+        android:summary="%s" />
 
 </PreferenceScreen>
diff --git a/res/xml/zen_mode_external_rule_settings.xml b/res/xml/zen_mode_external_rule_settings.xml
index e3fafbd..0869cb0 100644
--- a/res/xml/zen_mode_external_rule_settings.xml
+++ b/res/xml/zen_mode_external_rule_settings.xml
@@ -40,7 +40,6 @@
     <DropDownPreference
         android:key="zen_mode"
         android:summary="%s"
-        android:title="@string/zen_mode_settings_title"
-        android:persistent="false" />
+        android:title="@string/zen_mode_settings_title" />
 
 </PreferenceScreen>
diff --git a/res/xml/zen_mode_priority_settings.xml b/res/xml/zen_mode_priority_settings.xml
index 6d9f36f..e2b8f48 100644
--- a/res/xml/zen_mode_priority_settings.xml
+++ b/res/xml/zen_mode_priority_settings.xml
@@ -24,39 +24,33 @@
         android:key="alarms"
         android:title="@string/zen_mode_alarms"
         android:enabled="false"
-        android:defaultValue="true"
-        android:persistent="false"/>
+        android:defaultValue="true"/>
 
     <!-- Reminders -->
     <SwitchPreference
         android:key="reminders"
-        android:title="@string/zen_mode_reminders"
-        android:persistent="false"/>
+        android:title="@string/zen_mode_reminders"/>
 
     <!-- Events -->
     <SwitchPreference
         android:key="events"
-        android:title="@string/zen_mode_events"
-        android:persistent="false"/>
+        android:title="@string/zen_mode_events"/>
 
     <!-- Messages -->
     <DropDownPreference
         android:key="messages"
         android:title="@string/zen_mode_messages"
-        android:summary="%s"
-        android:persistent="false" />
+        android:summary="%s" />
 
     <!-- Calls -->
     <DropDownPreference
         android:key="calls"
         android:title="@string/zen_mode_calls"
-        android:summary="%s"
-        android:persistent="false" />
+        android:summary="%s" />
 
     <!-- Repeat callers -->
     <SwitchPreference
         android:key="repeat_callers"
-        android:title="@string/zen_mode_repeat_callers"
-        android:persistent="false"/>
+        android:title="@string/zen_mode_repeat_callers"/>
 
 </PreferenceScreen>
diff --git a/res/xml/zen_mode_schedule_rule_settings.xml b/res/xml/zen_mode_schedule_rule_settings.xml
index 3c62b5b..80a9d66 100644
--- a/res/xml/zen_mode_schedule_rule_settings.xml
+++ b/res/xml/zen_mode_schedule_rule_settings.xml
@@ -37,7 +37,6 @@
             android:key="zen_mode"
             android:title="@string/zen_mode_settings_title"
             android:order="100"
-            android:summary="%s"
-            android:persistent="false" />
+            android:summary="%s" />
 
 </PreferenceScreen>
diff --git a/res/xml/zen_mode_visual_interruptions_settings.xml b/res/xml/zen_mode_visual_interruptions_settings.xml
index 8f67e08..42a043b 100644
--- a/res/xml/zen_mode_visual_interruptions_settings.xml
+++ b/res/xml/zen_mode_visual_interruptions_settings.xml
@@ -20,17 +20,14 @@
 
     <SwitchPreference android:key="peek"
                       android:title="@string/zen_mode_peek"
-                      android:summary="@string/zen_mode_peek_summary"
-                      android:persistent="false" />
+                      android:summary="@string/zen_mode_peek_summary" />
 
     <SwitchPreference android:key="lights"
                       android:title="@string/zen_mode_lights"
-                      android:summary="@string/zen_mode_lights_summary"
-                      android:persistent="false" />
+                      android:summary="@string/zen_mode_lights_summary" />
 
     <SwitchPreference android:key="screen_on"
                       android:title="@string/zen_mode_screen_on"
-                      android:summary="@string/zen_mode_screen_on_summary"
-                      android:persistent="false" />
+                      android:summary="@string/zen_mode_screen_on_summary" />
 
 </PreferenceScreen>
diff --git a/src/com/android/settings/InstrumentedFragment.java b/src/com/android/settings/InstrumentedFragment.java
index db14a9cf..b5f99b5 100644
--- a/src/com/android/settings/InstrumentedFragment.java
+++ b/src/com/android/settings/InstrumentedFragment.java
@@ -16,11 +16,11 @@
 
 package com.android.settings;
 
+import com.android.internal.logging.MetricsLogger;
+
 import android.os.Bundle;
 import android.support.v14.preference.PreferenceFragment;
 
-import com.android.internal.logging.MetricsLogger;
-
 /**
  * Instrumented fragment that logs visibility state.
  */
@@ -44,6 +44,10 @@
     public static final int DATA_SAVER_SUMMARY = UNDECLARED + 14;
     public static final int DATA_USAGE_UNRESTRICTED_ACCESS = UNDECLARED + 15;
 
+    // Used for generic logging of Settings Preference Persistence, should not be used
+    // outside SharedPreferencesLogger.
+    public static final int ACTION_GENERIC_PACKAGE = UNDECLARED + 16;
+
     /**
      * Declare the view of this category.
      *
diff --git a/src/com/android/settings/SettingsActivity.java b/src/com/android/settings/SettingsActivity.java
index ce70f4c..38537fb 100644
--- a/src/com/android/settings/SettingsActivity.java
+++ b/src/com/android/settings/SettingsActivity.java
@@ -457,6 +457,21 @@
         return true;
     }
 
+    @Override
+    public SharedPreferences getSharedPreferences(String name, int mode) {
+        if (name.equals(getPackageName() + "_preferences")) {
+            String tag = getClass().getName();
+            if (getIntent() != null && getIntent().hasExtra(EXTRA_SHOW_FRAGMENT)) {
+                tag = getIntent().getStringExtra(EXTRA_SHOW_FRAGMENT);
+            }
+            if (tag.startsWith("com.android.settings.")) {
+                tag = tag.replace("com.android.settings.", "");
+            }
+            return new SharedPreferencesLogger(this, tag);
+        }
+        return super.getSharedPreferences(name, mode);
+    }
+
     private static boolean isShortCutIntent(final Intent intent) {
         Set<String> categories = intent.getCategories();
         return (categories != null) && categories.contains("com.android.settings.SHORTCUT");
diff --git a/src/com/android/settings/SharedPreferencesLogger.java b/src/com/android/settings/SharedPreferencesLogger.java
new file mode 100644
index 0000000..ae2c4e5
--- /dev/null
+++ b/src/com/android/settings/SharedPreferencesLogger.java
@@ -0,0 +1,191 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the
+ * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+package com.android.settings;
+
+import com.android.internal.logging.MetricsLogger;
+
+import android.annotation.Nullable;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.content.pm.PackageManager;
+import android.os.AsyncTask;
+import android.text.TextUtils;
+import android.util.Log;
+
+import java.util.Map;
+import java.util.Set;
+
+public class SharedPreferencesLogger implements SharedPreferences {
+
+    private final String mTag;
+    private final Context mContext;
+
+    public SharedPreferencesLogger(Context context, String tag) {
+        mContext = context;
+        mTag = tag;
+    }
+
+    @Override
+    public Map<String, ?> getAll() {
+        return null;
+    }
+
+    @Override
+    public String getString(String key, @Nullable String defValue) {
+        return defValue;
+    }
+
+    @Override
+    public Set<String> getStringSet(String key, @Nullable Set<String> defValues) {
+        return defValues;
+    }
+
+    @Override
+    public int getInt(String key, int defValue) {
+        return defValue;
+    }
+
+    @Override
+    public long getLong(String key, long defValue) {
+        return defValue;
+    }
+
+    @Override
+    public float getFloat(String key, float defValue) {
+        return defValue;
+    }
+
+    @Override
+    public boolean getBoolean(String key, boolean defValue) {
+        return defValue;
+    }
+
+    @Override
+    public boolean contains(String key) {
+        return false;
+    }
+
+    @Override
+    public Editor edit() {
+        return new EditorLogger();
+    }
+
+    @Override
+    public void registerOnSharedPreferenceChangeListener(
+            OnSharedPreferenceChangeListener listener) {
+    }
+
+    @Override
+    public void unregisterOnSharedPreferenceChangeListener(
+            OnSharedPreferenceChangeListener listener) {
+    }
+
+    private void logValue(String key, String value) {
+        MetricsLogger.histogram(mContext, mTag + "/" + key + "|" + value, 1);
+    }
+
+    private void logPackageName(String key, String value) {
+        MetricsLogger.histogram(mContext, mTag + "/" + key, 1);
+        MetricsLogger.action(mContext, InstrumentedFragment.ACTION_GENERIC_PACKAGE,
+                mTag + "/" + key + "|" + value);
+    }
+
+    private void safeLogValue(String key, String value) {
+        new AsyncPackageCheck().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, key, value);
+    }
+
+    private class AsyncPackageCheck extends AsyncTask<String, Void, Void> {
+        @Override
+        protected Void doInBackground(String... params) {
+            String key = params[0];
+            String value = params[1];
+            PackageManager pm = mContext.getPackageManager();
+            try {
+                // Check if this might be a component.
+                ComponentName name = ComponentName.unflattenFromString(value);
+                if (value != null) {
+                    value = name.getPackageName();
+                }
+            } catch (Exception e) {
+            }
+            try {
+                pm.getPackageInfo(value, PackageManager.MATCH_UNINSTALLED_PACKAGES);
+                logPackageName(key, value);
+            } catch (PackageManager.NameNotFoundException e) {
+                // Clearly not a package, lets log it.
+                logValue(key, value);
+            }
+            return null;
+        }
+    }
+
+    public class EditorLogger implements Editor {
+        @Override
+        public Editor putString(String key, @Nullable String value) {
+            safeLogValue(key, value);
+            return this;
+        }
+
+        @Override
+        public Editor putStringSet(String key, @Nullable Set<String> values) {
+            safeLogValue(key, TextUtils.join(",", values));
+            return this;
+        }
+
+        @Override
+        public Editor putInt(String key, int value) {
+            logValue(key, String.valueOf(value));
+            return this;
+        }
+
+        @Override
+        public Editor putLong(String key, long value) {
+            logValue(key, String.valueOf(value));
+            return this;
+        }
+
+        @Override
+        public Editor putFloat(String key, float value) {
+            logValue(key, String.valueOf(value));
+            return this;
+        }
+
+        @Override
+        public Editor putBoolean(String key, boolean value) {
+            logValue(key, String.valueOf(value));
+            return this;
+        }
+
+        @Override
+        public Editor remove(String key) {
+            return this;
+        }
+
+        @Override
+        public Editor clear() {
+            return this;
+        }
+
+        @Override
+        public boolean commit() {
+            return true;
+        }
+
+        @Override
+        public void apply() {
+        }
+    }
+}