Android Constraint Layout Tutorial centralized side of

Video tutorial:

Source Code:

<?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"
    android:background="#898989"
    tools:context="test.com.constraintlayout.MainActivity"
    tools:ignore="GradleDependency">

    <LinearLayout
        android:id="@+id/view"
        class="android.support.v4.widget.Space"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginBottom="32dp"
        android:layout_marginLeft="32dp"
        android:layout_marginRight="32dp"
        android:layout_marginTop="32dp"
        android:background="@android:color/white"
        android:orientation="vertical"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHorizontal_bias="1.0"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.0">

    </LinearLayout>

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="testing"
        tools:ignore="HardcodedText"
        app:layout_constraintBottom_toBottomOf="@id/view"
        android:layout_marginBottom="70dp"
        app:layout_constraintRight_toRightOf="@id/view"
        app:layout_constraintLeft_toLeftOf="@id/view"
        android:layout_marginLeft="0dp"
        android:layout_marginRight="0dp" />

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:srcCompat="@mipmap/ic_launcher"
        android:layout_marginLeft="10dp"
        app:layout_constraintLeft_toRightOf="@id/textView"
        app:layout_constraintTop_toTopOf="@id/textView"
        app:layout_constraintBottom_toBottomOf="@id/textView"
        tools:ignore="ContentDescription" />

</android.support.constraint.ConstraintLayout>

Output: