Material Design is not intended for programmers, but for designers. This is why recommendations are hard to implement.
, Roboto. TextViews paddings, , .

, :
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:background="#ffffffff"
android:paddingLeft="16dp"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="72dp">
<TextView
android:layout_alignParentTop="true"
android:layout_marginTop="20dp"
android:paddingTop="11dp"
android:id="@+id/topMarker"
android:layout_width="1dp"
android:layout_height="1dp"
android:textSize="1dp" />
<TextView
android:layout_alignParentBottom="true"
android:layout_marginBottom="20dp"
android:padding="0dp"
android:gravity="center"
android:id="@+id/bottomMarker"
android:layout_width="1dp"
android:layout_height="1dp"
android:textSize="1dp" />
<TextView
android:layout_alignBaseline="@+id/topMarker"
android:text="Primary text"
android:textSize="16sp"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:layout_alignBaseline="@+id/bottomMarker"
android:text="Secondary text"
android:textSize="14sp"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</RelativeLayout>
, , beacuse Android . .
Edit:
. . : https://androidreclib.wordpress.com/2016/03/10/aligning-text-on-android/