session-android/res/layout/activity_home.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:background="@drawable/default_session_background"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:minHeight="?attr/actionBarSize"
        app:contentInsetLeft="20dp"
        app:contentInsetRight="20dp"
        android:theme="?attr/actionBarStyle">

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <org.thoughtcrime.securesms.loki.redesign.views.ProfilePictureView
                android:id="@+id/profileButton"
                android:layout_width="@dimen/small_profile_picture_size"
                android:layout_height="@dimen/small_profile_picture_size"
                android:layout_marginLeft="10dp"
                android:layout_alignParentLeft="true"
                android:layout_centerVertical="true" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Messages"
                android:textColor="@color/text"
                android:textSize="@dimen/very_large_font_size"
                android:fontFamily="sans-serif-medium"
                android:layout_alignParentLeft="true"
                android:layout_centerVertical="true"
                android:layout_marginLeft="64dp" />

            <ImageView
                android:id="@+id/joinPublicChatButton"
                android:layout_width="24dp"
                android:layout_height="24dp"
                android:src="@drawable/ic_globe"
                android:layout_alignParentRight="true"
                android:layout_centerVertical="true" />

        </RelativeLayout>

    </android.support.v7.widget.Toolbar>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <android.support.v7.widget.RecyclerView
            android:id="@+id/recyclerView"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

        <!-- The button below intentionally uses dp for the text size and not sp -->

        <RelativeLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_alignParentBottom="true"
            android:layout_marginBottom="@dimen/new_conversation_button_bottom_offset">

            <View
                android:layout_width="72dp"
                android:layout_height="72dp"
                android:background="@drawable/new_conversation_button_background" />

            <Button
                android:id="@+id/newConversationButton"
                android:layout_width="@dimen/new_conversation_button_size"
                android:layout_height="@dimen/new_conversation_button_size"
                android:layout_centerInParent="true"
                android:paddingLeft="1dp"
                android:paddingBottom="2dp"
                android:background="@drawable/new_conversation_button_foreground"
                android:fontFamily="@font/roboto_light"
                android:textSize="40dp"
                android:textColor="#121212"
                android:text="+"
                android:elevation="0dp"
                android:stateListAnimator="@null" />

        </RelativeLayout>

    </RelativeLayout>

</LinearLayout>