Title style for text setting font family.

    android:layout_gravity="bottom">

    <TextView

        style="@style/TextTitle"

        android:id="@+id/title"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:gravity="center_horizontal"

        android:fontFamily="sans-serif"

        android:textColor="?android:attr/textColorPrimary"

        android:textSize="24sp"/>

    </style>

    <style name="DropTargetButton" parent="DropTargetButtonBase" />

    <style name="TextTitle">

        <item name="android:fontFamily">sans-serif</item>

    </style>

</resources>