linphone-android/res/layout/chat_infos.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">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:background="@color/colorH" >

        <LinearLayout
            android:id="@+id/top_bar"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:background="@color/colorH"
            android:orientation="horizontal">

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

            <TextView
                style="@style/font6"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="0.4"
                android:ellipsize="end"
                android:gravity="center"
                android:maxLines="1"
                android:text="@string/chat_room_infos_title"/>

            <ImageView
                android:id="@+id/confirm"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_gravity="right|center"
                android:layout_weight="0.2"
                android:contentDescription="@string/content_description_valid"
                android:src="@drawable/chat_room_creation_confirm"/>

        </LinearLayout>

        <RelativeLayout
            android:id="@+id/layoutSubjectField"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="10dp"
            android:layout_marginLeft="20dp"
            android:layout_marginRight="20dp"
            android:layout_marginTop="10dp">

            <EditText
                android:id="@+id/subjectField"
                android:layout_width="match_parent"
                android:layout_height="40dp"
                android:background="#f3f3f3"
                android:contentDescription="@string/content_description_conversation_subject"
                android:gravity="center"
                android:hint="@string/conversation_subject_hint"
                android:inputType="textEmailSubject"
                android:textColor="@android:color/black"
                android:textCursorDrawable="@null"/>

        </RelativeLayout>

        <RelativeLayout
            android:id="@+id/addParticipantsLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@color/colorH"
            android:paddingBottom="8dp"
            android:paddingTop="8dp">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="center"
                android:text="@string/chat_room_participants"
                android:textColor="@color/colorB"
                android:textSize="15sp"
                android:textStyle="bold"/>

            <ImageView
                android:id="@+id/addParticipants"
                android:layout_width="wrap_content"
                android:layout_height="14dp"
                android:layout_alignParentRight="true"
                android:layout_centerVertical="true"
                android:paddingRight="10dp"
                android:src="@drawable/chat_group_add"/>

        </RelativeLayout>

        <ListView
            android:id="@+id/chat_room_participants"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:divider="@color/colorE"
            android:dividerHeight="1dp">

        </ListView>

        <LinearLayout
            android:id="@+id/leaveGroupLayout"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:paddingTop="8dp"
            android:paddingBottom="8dp"
            android:layout_marginTop="10dp"
            android:layout_marginBottom="10dp"
            android:paddingLeft="20dp"
            android:paddingRight="20dp"
            android:background="@color/colorA">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:gravity="center"
                android:textSize="15sp"
                android:textAllCaps="true"
                android:textColor="@color/colorG"
                android:text="@string/chat_room_leave_group"/>

        </LinearLayout>

    </LinearLayout>

    <include layout="@layout/wait_layout" android:id="@+id/waitScreen"/>

</RelativeLayout>