linphone-android/res/layout/chat.xml

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

    <RelativeLayout
        android:id="@+id/top"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <LinearLayout
            android:id="@+id/top_bar"
            android:orientation="horizontal"
            android:background="@color/colorF"
            android:layout_width="match_parent"
            android:layout_height="60dp">

            <ImageView
                android:id="@+id/back"
                android:src="@drawable/back"
                android:background="@drawable/toolbar_button"
                android:contentDescription="@string/content_description_back"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="0.2"
                android:padding="18dp"/>

            <LinearLayout
                android:orientation="vertical"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="0.4"
                android:paddingLeft="5dp"
                android:layout_gravity="center_vertical|left"
                android:gravity="center_vertical|left">

                <TextView
                    android:id="@+id/subject"
                    style="@style/font6"
                    android:ellipsize="end"
                    android:maxLines="1"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"/>

                <TextView
                    android:id="@+id/participants"
                    android:ellipsize="end"
                    android:maxLines="1"
                    android:textColor="@color/colorC"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"/>

            </LinearLayout>

            <ImageView
                android:id="@+id/start_call"
                android:src="@drawable/call_alt_start"
                android:background="@drawable/toolbar_button"
                android:contentDescription="@string/content_description_call"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="0.2"
                android:padding="15dp"/>

            <ImageView
                android:id="@+id/group_infos"
                android:src="@drawable/chat_room_group_infos"
                android:background="@drawable/toolbar_button"
                android:contentDescription="@string/content_description_conversation_infos"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="0.2"
                android:padding="15dp"/>

            <ImageView
                android:id="@+id/back_to_call"
                android:src="@drawable/call_back"
                android:background="@drawable/toolbar_button"
                android:contentDescription="@string/content_description_back_call"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="0.2"
                android:visibility="gone"
                android:padding="15dp"/>

            <ImageView
                android:id="@+id/edit"
                android:src="@drawable/edit_list_button"
                android:background="@drawable/toolbar_button"
                android:contentDescription="@string/content_description_edit_list"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="0.2"
                android:padding="15dp"/>
        </LinearLayout>

        <include layout="@layout/edit_list"/>

    </RelativeLayout>

	<LinearLayout
		android:id="@+id/footer"
		android:background="@color/colorF"
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:orientation="vertical"
		android:layout_alignParentBottom="true">

        <HorizontalScrollView
            android:orientation="horizontal"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <LinearLayout
                android:id="@+id/file_upload_layout"
                android:orientation="horizontal"
                android:layout_width="match_parent"
                android:layout_height="wrap_content">

            </LinearLayout>

        </HorizontalScrollView>

		<LinearLayout
			android:id="@+id/message_layout"
			android:orientation="horizontal"
			android:layout_width="match_parent"
			android:layout_height="wrap_content"
            android:gravity="center_vertical">

			<ImageView
				android:id="@+id/send_picture"
				android:src="@drawable/chat_send_file"
				android:contentDescription="@string/content_description_send_file"
                android:padding="5dp"
				android:layout_width="wrap_content"
				android:layout_height="wrap_content" />

			<EditText
				android:id="@+id/message"
				android:textColor="@color/colorB"
				android:imeOptions="flagNoExtractUi"
				android:textCursorDrawable="@null"
				android:inputType="textShortMessage|textMultiLine|textAutoComplete|textAutoCorrect|textCapSentences"
				android:contentDescription="@string/content_description_message"
				android:maxLines="6"
				android:padding="5dp"
				android:layout_margin="5dp"
				android:layout_weight="1"
				android:layout_width="match_parent"
				android:layout_height="wrap_content"
				android:background="@drawable/resizable_textfield"
				android:layout_gravity="center_vertical"/>

			<ImageView
				android:id="@+id/send_message"
				android:src="@drawable/chat_send_message"
				android:contentDescription="@string/content_description_send_message"
                android:padding="5dp"
				android:layout_width="wrap_content"
				android:layout_height="wrap_content"/>

		</LinearLayout>

	</LinearLayout>

	<TextView
		android:id="@+id/remote_composing"
		android:text="@string/remote_composing"
		style="@style/font11"
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:layout_above="@id/footer"/>

	<android.support.v7.widget.RecyclerView

		android:id="@+id/chat_message_list"
		android:divider="@android:color/transparent"
		android:choiceMode="multipleChoice"
		android:transcriptMode="normal"
		android:cacheColorHint="@color/transparent"
    	android:listSelector="@color/transparent"
		android:layout_above="@id/remote_composing"
		android:layout_width="match_parent"
		android:layout_height="match_parent"
		android:layout_marginRight="10dp"
		android:layout_marginLeft="10dp"
		android:layout_below="@+id/top"/>

</RelativeLayout>