Initial checkin of AOSP Messaging app.

b/23110861

Change-Id: I9aa980d7569247d6b2ca78f5dcb4502e1eaadb8a

res/layout/attachment_grid_item_view.xml

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright (C) 2015 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.
+-->
+<com.android.messaging.ui.attachmentchooser.AttachmentGridItemView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="@dimen/attachment_grid_image_cell_size"
+    android:clickable="true">
+
+    <FrameLayout
+        android:id="@+id/attachment_container"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+    <View
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="?android:attr/selectableItemBackground" />
+
+    <CheckBox
+        android:id="@+id/checkbox"
+        style="@style/AttachmentGridItemViewCheckBoxStyle"
+        android:button="@drawable/gallery_checkbox_selector"
+        android:background="@null"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="top|end"
+        android:paddingTop="4dp"
+        android:contentDescription="@string/gallery_checkbox_content_description" />
+</com.android.messaging.ui.attachmentchooser.AttachmentGridItemView>