Connecting answer call action in UI to service.

Also starting pinging animation for glow pad.

Change-Id: Ifac94582b8448c288a07577db02633bf9452ee56
diff --git a/InCallUI/res/layout/answer_fragment.xml b/InCallUI/res/layout/answer_fragment.xml
index bfe2303..b334a12 100644
--- a/InCallUI/res/layout/answer_fragment.xml
+++ b/InCallUI/res/layout/answer_fragment.xml
@@ -1,18 +1,19 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2013 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.
--->
+<!--
+  ~ Copyright (C) 2013 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
+  -->
 
 <!-- TODO(klp): move out to separate file -->
 <com.android.incallui.AnswerUi
@@ -27,7 +28,8 @@
         android:layout_alignParentBottom="true"
         android:layout_centerHorizontal="true"
         android:gravity="center"
-        android:layout_gravity="center_vertical"
+        android:layout_gravity="bottom|center_horizontal"
+        android:background="#000"
 
         dc:targetDrawables="@array/incoming_call_widget_3way_targets"
         dc:targetDescriptions="@array/incoming_call_widget_3way_target_descriptions"