res/layout/conversation_item_view_wide.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
     Copyright (C) 2011 Google Inc.
     Licensed to 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.
-->

<!-- This layout is used as a template to create custom view CanvasConversationHeaderView
    in wide mode. To be able to get the correct measurements, every source field should
    be populated with data here. E.g:
    - Text View should set text to a random long string (android:text="@string/long_string")
    - Image View should set source to a specific asset -->
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:minHeight="64sp"
    android:orientation="horizontal">
    <ImageView
        android:id="@+id/checkmark"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="16dip"
        android:layout_marginRight="16dip"
        android:layout_gravity="center_vertical"
        android:src="@drawable/btn_check_on_normal_holo_light" />
    <TextView
        android:id="@+id/senders"
        android:layout_width="224dip"
        android:layout_height="wrap_content"
        android:text="@string/long_string"
        android:textSize="@dimen/wide_senders_font_size"
        android:layout_gravity="center_vertical"
        android:maxLines="2"
        android:layout_marginTop="@dimen/wide_senders_margin_top"  />
    <ImageView
        android:id="@+id/personal_level"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="16dip"
        android:layout_marginRight="16dip"
        android:layout_gravity="center_vertical"
        android:src="@drawable/ic_email_caret_single" />
    <TextView
        android:id="@+id/subject"
        android:layout_width="0dip"
        android:layout_weight="0.7"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:text="@string/long_string"
        android:lines="2"
        android:textColor="@color/subject_text_color_unread"
        android:textSize="@dimen/wide_subject_font_size"
        android:layout_marginTop="2sp"
        android:layout_marginRight="@dimen/wide_subject_margin_right"/>
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:orientation="vertical">
        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:layout_gravity="center_vertical">
            <ImageView
                android:id="@+id/paperclip"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@drawable/ic_attachment_holo_light"
                android:layout_gravity="center_vertical"
                android:layout_marginTop="@dimen/wide_attachment_margin_top"/>
            <TextView
                android:id="@+id/date"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_vertical"
                android:text="@string/date"
                android:layout_marginTop="@dimen/wide_date_margin_top" />
        </LinearLayout>
    </LinearLayout>
    <ImageView
        android:id="@+id/star"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="16dip"
        android:layout_marginRight="16dip"
        android:layout_gravity="center_vertical"
        android:src="@drawable/btn_star_off_normal_email_holo_light" />
</LinearLayout>