diff --git a/core/api/current.txt b/core/api/current.txt
index 9ef3eb462552b..d8003f37fa6c2 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -1746,6 +1746,9 @@ package android {
     field public static final int dialog_min_width_minor = 17104900; // 0x1050004
     field public static final int notification_large_icon_height = 17104902; // 0x1050006
     field public static final int notification_large_icon_width = 17104901; // 0x1050005
+    field public static final int system_app_widget_background_radius = 17104904; // 0x1050008
+    field public static final int system_app_widget_inner_radius = 17104905; // 0x1050009
+    field public static final int system_app_widget_internal_padding = 17104906; // 0x105000a
     field public static final int thumbnail_height = 17104897; // 0x1050001
     field public static final int thumbnail_width = 17104898; // 0x1050002
   }
diff --git a/core/res/res/values/dimens.xml b/core/res/res/values/dimens.xml
index debdab0b37bae..706641985e208 100644
--- a/core/res/res/values/dimens.xml
+++ b/core/res/res/values/dimens.xml
@@ -926,4 +926,12 @@
     <dimen name="controls_thumbnail_image_max_height">140dp</dimen>
     <!-- The maximum width of a thumbnail in a ThumbnailTemplate. The image will be reduced to that width in case they are bigger.-->
     <dimen name="controls_thumbnail_image_max_width">280dp</dimen>
+
+    <!-- System-provided radius for the background view of app widgets. The resolved value of this resource may change at runtime. -->
+    <dimen name="system_app_widget_background_radius">16dp</dimen>
+    <!-- System-provided radius for inner views on app widgets. The resolved value of this resource may change at runtime. -->
+    <dimen name="system_app_widget_inner_radius">8dp</dimen>
+    <!-- System-provided padding for inner views on app widgets. The resolved value of this resource may change at runtime. -->
+    <dimen name="system_app_widget_internal_padding">16dp</dimen>
+
 </resources>
diff --git a/core/res/res/values/public.xml b/core/res/res/values/public.xml
index 278708a26d444..ca40564cbe5b4 100644
--- a/core/res/res/values/public.xml
+++ b/core/res/res/values/public.xml
@@ -3111,6 +3111,11 @@
 
   <public-group type="dimen" first-id="0x01050008">
     <!-- dimension definitions go here -->
+
+    <!-- System-provided dimensions for app widgets. -->
+    <public name="system_app_widget_background_radius" />
+    <public name="system_app_widget_inner_radius" />
+    <public name="system_app_widget_internal_padding" />
   </public-group>
 
   <public-group type="bool" first-id="0x01110007">