session-android/res/layout/experience_upgrade_link_previews_fragment.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:background="#FF2090ea">

    <TextView
        android:id="@+id/blurb"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="8dp"
        android:layout_marginTop="24dp"
        android:layout_marginEnd="8dp"
        android:fontFamily="sans-serif-light"
        android:gravity="center_horizontal"
        android:paddingStart="20dp"
        android:paddingEnd="20dp"
        android:text="@string/ExperienceUpgradeActivity_introducing_link_previews"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:textColor="@android:color/white"
        android:textIsSelectable="false"
        android:textSize="@dimen/onboarding_title_size"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="wrap_content"
        android:layout_height="0dp"
        android:layout_gravity="center"
        android:layout_marginStart="24dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="24dp"
        android:layout_marginBottom="16dp"
        android:src="@drawable/link_preview_splash"
        app:layout_constraintBottom_toTopOf="@+id/linearLayout"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHeight_max="280dp"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/blurb"
        app:layout_constraintVertical_bias="0.0"
        app:layout_constraintWidth_max="280dp" />

    <LinearLayout
        android:id="@+id/linearLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="24dp"
        android:layout_marginEnd="24dp"
        android:layout_marginBottom="16dp"
        android:orientation="vertical"
        app:layout_constraintBottom_toTopOf="@+id/experience_ok_button"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/imageView">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="16dp"
            android:fontFamily="sans-serif-light"
            android:gravity="center_horizontal"
            android:text="@string/ExperienceUpgradeActivity_optional_link_previews_are_now_supported"
            android:textColor="@color/core_white"
            android:textIsSelectable="false"
            android:textSize="@dimen/onboarding_subtitle_size" />

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:fontFamily="sans-serif-light"
            android:gravity="center_horizontal"
            android:paddingStart="20dp"
            android:paddingEnd="20dp"
            android:text="@string/ExperienceUpgradeActivity_you_can_disable_or_enable_this_feature_link_previews"
            android:textColor="@color/core_white"
            android:textIsSelectable="false"
            android:textSize="16dp" />

    </LinearLayout>

    <android.support.v7.widget.AppCompatButton
        android:id="@+id/experience_ok_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginStart="24dp"
        android:layout_marginEnd="24dp"
        android:layout_marginBottom="24dp"
        android:text="@string/ExperienceUpgradeActivity_got_it"
        android:textColor="@color/core_blue"
        app:backgroundTint="@color/core_white"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent" />

</android.support.constraint.ConstraintLayout>