Make overlapAnchor public, make ActionBar spinner overlap

BUG: 15566102
Change-Id: I23885c2d66ce0749e4c131491205bb8eb2612923

api/current.txt

@@ -859,6 +859,7 @@ package android {
     field public static final int overScrollFooter = 16843459; // 0x10102c3
     field public static final int overScrollHeader = 16843458; // 0x10102c2
     field public static final int overScrollMode = 16843457; // 0x10102c1
+    field public static final int overlapAnchor = 16843876; // 0x1010464
     field public static final int overridesImplicitlyEnabledSubtype = 16843682; // 0x10103a2
     field public static final int packageNames = 16843649; // 0x1010381
     field public static final int padding = 16842965; // 0x10100d5

core/java/com/android/internal/widget/ToolbarWidgetWrapper.java

@@ -480,7 +480,7 @@ public class ToolbarWidgetWrapper implements DecorToolbar {
 
     private void ensureSpinner() {
         if (mSpinner == null) {
-            mSpinner = new Spinner(getContext());
+            mSpinner = new Spinner(getContext(), null, R.attr.actionDropDownStyle);
             Toolbar.LayoutParams lp = new Toolbar.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
                     ViewGroup.LayoutParams.WRAP_CONTENT, Gravity.START | Gravity.CENTER_VERTICAL);
             mSpinner.setLayoutParams(lp);

core/res/res/values/attrs.xml

@@ -3870,8 +3870,11 @@
         <attr name="inputType" />
     </declare-styleable>
     <declare-styleable name="PopupWindow">
+        <!-- The background to use for the popup window. -->
         <attr name="popupBackground" format="reference|color" />
+        <!-- The animation style to use for the popup window. -->
         <attr name="popupAnimationStyle" format="reference" />
+        <!-- Whether the popup window should overlap its anchor view. -->
         <attr name="overlapAnchor" format="boolean" />
     </declare-styleable>
     <declare-styleable name="ViewAnimator">

core/res/res/values/public.xml

@@ -2189,6 +2189,7 @@
   <public type="attr" name="searchKeyphrase" />
   <public type="attr" name="searchKeyphraseSupportedLocales" />
   <public type="attr" name="windowTransitionBackgroundFadeDuration" />
+  <public type="attr" name="overlapAnchor" />
 
   <public-padding type="dimen" name="l_resource_pad" end="0x01050010" />
 

core/res/res/values/styles_material.xml

@@ -625,6 +625,7 @@ please see styles_device_defaults.xml.
 
     <style name="Widget.Material.Spinner.DropDown.ActionBar">
         <item name="background">@drawable/spinner_background_material</item>
+        <item name="overlapAnchor">true</item>
     </style>
 
     <style name="Widget.Material.TabWidget" parent="Widget.TabWidget">