anotherim/res/layout/fragment_conversation.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#e5e5e5" >

    <RelativeLayout
        android:background="#eee"
        android:id="@+id/textsend"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true" >

        <EditText
            android:id="@+id/textinput"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:minHeight="48dp"
            android:layout_alignParentLeft="true"
            android:paddingBottom="12dp"
            android:paddingLeft="8dp"
            android:paddingRight="8dp"
            android:paddingTop="12dp"
            android:layout_toLeftOf="@+id/textSendButton"
            android:background="#eee"
            android:ems="10"
            android:inputType="textMultiLine"
            android:minLines="1" >
        </EditText>

        <ImageButton
            android:id="@+id/textSendButton"
            android:layout_width="48dp"
            android:layout_height="48dp"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true"
            android:background="?android:selectableItemBackground"
            android:src="@drawable/ic_action_send_now" />
    </RelativeLayout>

    <ListView
        android:id="@+id/messages_view"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_above="@+id/textsend"
        android:layout_alignParentLeft="true"
        android:background="#e5e5e5"
        tools:listitem="@layout/message_sent"
        android:divider="@null"
		android:dividerHeight="0dp"
		android:transcriptMode="alwaysScroll"
		android:listSelector="@android:color/transparent">
    </ListView>
    <LinearLayout
        android:id="@+id/new_fingerprint"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_alignTop="@+id/messages_view"
        android:background="#cc0000"
        android:orientation="vertical"
        android:visibility="gone"
        >

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Unknown OTR Fingerprint"
            android:textColor="#eee"
            android:textStyle="bold"
            android:padding="8dp"
            android:textSize="20sp"/>
        <TextView 
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/otr_fingerprint"
            android:textColor="#eee"
            android:text="2674D6A0 0B1421B1 BFC42AEC C56F3719 672437D8"
            android:paddingLeft="8dp"
            android:paddingBottom="8dp"
            android:textSize="14sp"
            android:typeface="monospace"/>
        
    </LinearLayout>

</RelativeLayout>