<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".ReaderActivity">
    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar_readerActivity"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintBottom_toTopOf="parent"
        android:layout_width="0dp"
        android:layout_height="wrap_content" />
    <com.kdanmobile.reader.HorizontalView
        android:id="@+id/viewGroup_readerActivity_leftToolbar"
        app:layout_constraintRight_toLeftOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
    <com.kdanmobile.reader.HorizontalView
        android:id="@+id/viewGroup_readerActivity_rightToolbar"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toRightOf="parent"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
    <android.support.constraint.ConstraintLayout
        android:id="@+id/viewGroup_readerActivity_bottomToolbar"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="parent"
        android:layout_width="0dp"
        android:layout_height="wrap_content" />
</android.support.constraint.ConstraintLayout>