activity_main_constraint.xml

<?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="com.example.diegosantos.constraintlayoutexample.MainActivity">

    <View
        android:id="@+id/leftLine"
        android:layout_width="0dp"
        android:layout_height="6dp"
        android:background="@color/black"
        app:layout_constraintBottom_toBottomOf="@id/circle"
        app:layout_constraintRight_toLeftOf="@id/circle"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@id/circle" />

    <View
        android:id="@+id/circle"
        android:layout_width="120dp"
        android:layout_height="120dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        android:background="@drawable/circle" />

    <View
        android:id="@+id/bus"  
        android:layout_width="50dp"
        android:layout_height="50dp"
        app:layout_constraintStart_toStartOf="@id/circle"
        app:layout_constraintEnd_toEndOf="@id/circle"
        app:layout_constraintTop_toTopOf="@id/circle"
        app:layout_constraintBottom_toBottomOf="@id/circle"
        android:background="@drawable/bus" />

    <View
        android:id="@+id/rightLine"
        android:layout_width="0dp"
        android:layout_height="6dp"
        app:layout_constraintTop_toTopOf="@id/circle"
        app:layout_constraintBottom_toBottomOf="@id/circle"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toEndOf="@id/circle"
        android:background="@color/black" />

    <TextView
        android:id="@+id/companyName"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="30sp"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@id/circle"
        android:text="@string/company_name"/>

</android.support.constraint.ConstraintLayout>