Constraint Layout DOJO - Solution

activity_main.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="wrap_content"
    tools:context=".MainActivity"
    android:background="@color/mirage"
    android:padding="16dp">

    <ImageView
        android:id="@+id/retweet_top"
        android:layout_width="15dp"
        android:layout_height="15dp"

        android:src="@drawable/ic_retweet"
        android:tint="@color/gray"

        app:layout_constraintTop_toTopOf="@+id/retweet_user"
        app:layout_constraintBottom_toBottomOf="@+id/retweet_user"
        app:layout_constraintRight_toRightOf="@id/profile_image"/>

    <TextView
        android:id="@+id/retweet_user"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        tools:text="Nicolas Roard retweetou"
        android:textColor="@color/gray"

        app:layout_constraintTop_toTopOf="@id/retweet_top"
        app:layout_constraintLeft_toLeftOf="@+id/username"/>

    <de.hdodenhof.circleimageview.CircleImageView
        android:id="@+id/profile_image"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_marginTop="8dp"

        android:src="@drawable/profile_image"

        app:layout_constraintTop_toBottomOf="@+id/retweet_top"
        app:layout_constraintLeft_toLeftOf="parent"/>

    <TextView
        android:id="@+id/username"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="12dp"

        tools:text="Florina Muntenescu"
        android:textColor="@color/white"
        android:textStyle="bold"

        app:layout_constraintTop_toTopOf="@+id/profile_image"
        app:layout_constraintLeft_toRightOf="@+id/profile_image"/>

    <TextView
        android:id="@+id/text"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="4dp"
        android:layout_marginEnd="8dp"

        tools:text="You found a bug in Android/Jetpacksuetracker.google.com so the teams know about it. Complaining on Twitter won't get that bug fixed."
        android:textColor="@color/white"

        app:layout_constraintTop_toBottomOf="@+id/username"
        app:layout_constraintLeft_toLeftOf="@+id/username"
        app:layout_constraintRight_toRightOf="parent"/>

    <ImageView
        android:id="@+id/comment"
        android:layout_width="21dp"
        android:layout_height="21dp"
        android:layout_marginTop="12dp"

        android:src="@drawable/ic_comment"
        android:tint="@color/gray"

        app:layout_constraintTop_toBottomOf="@+id/text"
        app:layout_constraintLeft_toLeftOf="@+id/text"
        app:layout_constraintRight_toLeftOf="@id/retweet"
        app:layout_constraintHorizontal_chainStyle="spread_inside"/>

    <ImageView
        android:id="@+id/retweet"
        android:layout_width="21dp"
        android:layout_height="21dp"

        android:src="@drawable/ic_retweet"
        android:tint="@color/gray"

        app:layout_constraintTop_toTopOf="@+id/comment"
        app:layout_constraintLeft_toRightOf="@+id/comment"
        app:layout_constraintRight_toLeftOf="@+id/favorite"/>

    <ImageView
        android:id="@+id/favorite"
        android:layout_width="21dp"
        android:layout_height="21dp"

        android:src="@drawable/ic_favorite"
        android:tint="@color/gray"

        app:layout_constraintTop_toTopOf="@+id/comment"
        app:layout_constraintLeft_toRightOf="@+id/retweet"
        app:layout_constraintRight_toLeftOf="@+id/share"/>

    <ImageView
        android:id="@+id/share"
        android:layout_width="21dp"
        android:layout_height="21dp"

        android:src="@drawable/ic_share"
        android:tint="@color/gray"

        app:layout_constraintTop_toTopOf="@+id/comment"
        app:layout_constraintLeft_toRightOf="@+id/favorite"
        app:layout_constraintRight_toRightOf="@+id/text"/>

    <android.support.constraint.Group
        android:id="@+id/group_retweet"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:constraint_referenced_ids="retweet_top, retweet_user"/>

</android.support.constraint.ConstraintLayout>