Created landscape layout for group empty view

Created a landscape layout for the empty view in groups, and
adjusted the dimens and integers so view displays correctly
in multiwindow mode.

Test: Manually tested new layouts in landscape, portrait,
multiview sizes and on tablets.

Bug: 33841666

Change-Id: I9fce9893ce6b0b854b9fc7dda8895e969e3b76e2
diff --git a/res/layout-land/empty_group_view.xml b/res/layout-land/empty_group_view.xml
new file mode 100644
index 0000000..66f445b
--- /dev/null
+++ b/res/layout-land/empty_group_view.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2017 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.
+-->
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/empty_group"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:background="@color/empty_state_background"
+    android:visibility="gone">
+
+    <ImageView
+        android:id="@+id/empty_group_image"
+        android:layout_width="wrap_content"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:paddingTop="@dimen/empty_group_view_image_padding_top"
+        android:scaleType="centerInside"
+        android:adjustViewBounds="true"
+        android:src="@drawable/label_empty"/>
+
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:layout_gravity="center_horizontal"
+        android:orientation="vertical">
+
+        <TextView
+            android:id="@+id/empty_group_view_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal"
+            android:paddingTop="@dimen/empty_group_view_text_padding_top"
+            android:text="@string/emptyGroup"
+            style="@style/EmptyStateTextStyle"/>
+
+        <Button
+            android:id="@+id/add_member_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal"
+            android:text="@string/menu_addContactsToGroup"
+            style="@style/AddContactsButtonStyle"/>
+    </LinearLayout>
+</LinearLayout>
\ No newline at end of file