Add popup for the period on the symbols keyboard. Bug: 2345920

res/xml/kbd_symbols.xml

@@ -131,7 +131,9 @@
                 android:keyWidth="40%p"
                 android:iconPreview="@drawable/sym_keyboard_feedback_space"
                 android:isRepeatable="true"/>
-        <Key android:keyLabel="." android:keyWidth="10%p" />
+        <Key android:codes="46" android:keyLabel="."
+                android:popupKeyboard="@xml/popup_punctuation"
+                android:keyWidth="10%p"/>
         <Key android:codes="10" android:keyIcon="@drawable/sym_keyboard_return" android:keyWidth="20%p" android:keyEdgeFlags="right"
                 android:iconPreview="@drawable/sym_keyboard_feedback_return"
                 />