k-9/res/layout/message_compose.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical">

    <ScrollView
        android:layout_width="fill_parent"
        android:layout_height="0dip"
        android:layout_weight="1"
        android:scrollbarStyle="insideOverlay"
        android:fillViewport="true">

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical" >

            <LinearLayout
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="4dp"
                android:paddingTop="6dp"
                android:orientation="vertical"
                android:background="#45bcbcbc">

                <Button
                    android:id="@+id/identity"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:gravity="left|center"
                    android:layout_marginLeft="6dip"
                    android:layout_marginRight="6dip"/>

                <LinearLayout
                    android:id="@+id/to_wrapper"
                    android:layout_height="wrap_content"
                    android:baselineAligned="true"
                    android:gravity="bottom"
                    android:layout_marginLeft="6dip"
                    android:layout_marginRight="6dip"
                    android:layout_width="fill_parent">

                    <MultiAutoCompleteTextView
                        android:id="@+id/to"
                        android:layout_height="wrap_content"
                        android:inputType="textEmailAddress|textMultiLine"
                        android:imeOptions="actionNext"
                        android:hint="@string/message_compose_to_hint"
                        android:textAppearance="?android:attr/textAppearanceMedium"
                        android:layout_width="0dp"
                        android:layout_marginRight="6dip"
                        android:layout_weight="1"/>

                    <ImageButton
                        android:id="@+id/add_to"
                        android:contentDescription="@string/message_compose_description_add_to"
                        android:src="@drawable/ic_button_add_contact"
                        android:layout_height="wrap_content"
                        android:layout_width="wrap_content"
                        android:padding="8dip"
                        android:layout_marginTop="1dip"/>

                </LinearLayout>

                <LinearLayout
                    android:id="@+id/cc_wrapper"
                    android:visibility="gone"
                    android:layout_height="wrap_content"
                    android:baselineAligned="true"
                    android:gravity="bottom"
                    android:layout_marginLeft="6dip"
                    android:layout_marginRight="6dip"
                    android:layout_width="fill_parent">

                    <MultiAutoCompleteTextView
                        android:id="@+id/cc"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:layout_marginRight="6dip"
                        android:inputType="textEmailAddress|textMultiLine"
                        android:imeOptions="actionNext"
                        android:hint="@string/message_compose_cc_hint"
                        android:textAppearance="?android:attr/textAppearanceMedium"/>

                    <ImageButton
                        android:id="@+id/add_cc"
                        android:contentDescription="@string/message_compose_description_add_cc"
                        android:src="@drawable/ic_button_add_contact"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:padding="8dip"
                        android:layout_marginTop="1dip"/>

                </LinearLayout>

                <LinearLayout
                    android:id="@+id/bcc_wrapper"
                    android:visibility="gone"
                    android:layout_height="wrap_content"
                    android:baselineAligned="true"
                    android:gravity="bottom"
                    android:layout_marginLeft="6dip"
                    android:layout_marginRight="6dip"
                    android:layout_width="fill_parent">

                    <MultiAutoCompleteTextView
                        android:id="@+id/bcc"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_marginRight="6dip"
                        android:layout_weight="1"
                        android:inputType="textEmailAddress|textMultiLine"
                        android:imeOptions="actionNext"
                        android:hint="@string/message_compose_bcc_hint"
                        android:textAppearance="?android:attr/textAppearanceMedium"/>

                    <ImageButton
                        android:id="@+id/add_bcc"
                        android:contentDescription="@string/message_compose_description_add_bcc"
                        android:layout_marginTop="1dip"
                        android:layout_height="wrap_content"
                        android:layout_width="wrap_content"
                        android:padding="8dip"
                        android:src="@drawable/ic_button_add_contact"/>

                </LinearLayout>

                <LinearLayout
                    android:id="@+id/layout_encrypt"
                    android:orientation="horizontal"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:visibility="gone"
                    android:paddingLeft="6dip"
                    android:paddingRight="6dip">

                    <LinearLayout
                        android:orientation="horizontal"
                        android:layout_gravity="center_vertical"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_weight="1">

                        <CheckBox
                            android:text="@string/btn_crypto_sign"
                            android:id="@+id/cb_crypto_signature"
                            android:layout_gravity="center_vertical"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"/>

                        <LinearLayout
                            android:orientation="vertical"
                            android:layout_gravity="center_vertical"
                            android:layout_height="wrap_content"
                            android:layout_width="wrap_content"
                            android:paddingRight="2dip">

                            <TextView
                                android:id="@+id/userId"
                                android:ellipsize="end"
                                android:textAppearance="?android:attr/textAppearanceSmall"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"/>

                            <TextView
                                android:id="@+id/userIdRest"
                                android:textSize="10sp"
                                android:ellipsize="end"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"/>

                        </LinearLayout>

                    </LinearLayout>

                    <CheckBox
                        android:text="@string/btn_encrypt"
                        android:id="@+id/cb_encrypt"
                        android:layout_gravity="center_vertical"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"/>

                </LinearLayout>

                <EditText
                    android:id="@+id/subject"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="6dip"
                    android:layout_marginRight="6dip"
                    android:hint="@string/message_compose_subject_hint"
                    android:inputType="textEmailSubject|textAutoCorrect|textCapSentences|textImeMultiLine"
                    android:imeOptions="actionNext"
                    android:singleLine="true"
                    android:textAppearance="?android:attr/textAppearanceMedium" />

                <!--
                    Empty container for storing attachments. We'll stick
                    instances of message_compose_attachment.xml in here.
                -->
                <LinearLayout
                    android:id="@+id/attachments"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:orientation="vertical" />

                <View
                    android:layout_width="fill_parent"
                    android:layout_height="1dip"
                    android:background="@drawable/divider_horizontal_email" />

            </LinearLayout>

            <!-- We have to use "wrap_content" (not "0dip") for "layout_height", otherwise the
                 EditText won't properly grow in height while the user is typing the message -->
            <EditText
                android:id="@+id/message_content"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:gravity="left|top"
                android:hint="@string/message_compose_content_hint"
                android:inputType="textMultiLine|textAutoCorrect|textCapSentences"
                android:imeOptions="actionDone|flagNoEnterAction"
                android:minLines="3"
                android:textAppearance="?android:attr/textAppearanceMedium" />

            <EditText
                android:id="@+id/upper_signature"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:gravity="left|top"
                android:editable="false"
                android:minLines="0"
                android:autoText="true"
                android:capitalize="sentences"
                android:hint="@string/message_compose_signature_hint"
                android:inputType="textMultiLine|textAutoCorrect|textCapSentences"
                android:textAppearance="?android:attr/textAppearanceMedium" />

            <Button
                android:id="@+id/quoted_text_show"
                android:text="@string/message_compose_show_quoted_text_action"
                android:textSize="16dip"
                android:padding="0dip"
                android:layout_gravity="right"
                android:layout_height="wrap_content"
                android:layout_width="match_parent"/>

            <!-- Quoted text bar -->
            <RelativeLayout
                android:id="@+id/quoted_text_bar"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content">

                <EditText
                    android:id="@+id/quoted_text"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:gravity="left|top"
                    android:minLines="3"
                    android:autoText="true"
                    android:capitalize="sentences"
                    android:inputType="textMultiLine|textAutoCorrect|textCapSentences"
                    android:textAppearance="?android:attr/textAppearanceMedium" />

                <com.fsck.k9.view.MessageWebView
                    android:id="@+id/quoted_html"
                    android:layout_height="wrap_content"
                    android:layout_width="fill_parent" />

                <LinearLayout
                    android:id="@+id/quoted_text_buttons"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentTop="true"
                    android:layout_alignParentRight="true">

                    <ImageButton
                        android:id="@+id/quoted_text_edit"
                        android:contentDescription="@string/message_compose_description_edit_quoted_text"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginRight="8dip"
                        android:background="@drawable/btn_edit" />

                    <ImageButton
                        android:id="@+id/quoted_text_delete"
                        android:contentDescription="@string/message_compose_description_delete_quoted_text"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:background="@drawable/btn_dialog" />

                </LinearLayout>

            </RelativeLayout>

            <EditText
                android:id="@+id/lower_signature"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:gravity="left|top"
                android:editable="false"
                android:minLines="0"
                android:autoText="true"
                android:capitalize="sentences"
                android:hint="@string/message_compose_signature_hint"
                android:inputType="textMultiLine|textAutoCorrect|textCapSentences"
                android:textAppearance="?android:attr/textAppearanceMedium" />

        </LinearLayout>

    </ScrollView>

</LinearLayout>