Text Size im Eigenen ListViewStyle wird nicht angenommen

1<style name="MyTheme" parent="android:Theme.Holo">
2 <item name="android:textSize">25dp</item>
3</style>

1<style name="MyListViewShoppingResult" parent="@android:style/Widget.ListView">
2 <item name="android:textSize">17dp</item>
3</style>

1<?xml version="1.0" encoding="utf-8"?>
2<TextView xmlns:android="xxx"
3 android:layout_width="match_parent"
4 android:layout_height="wrap_content"
5 android:textAppearance="?android:attr/textAppearanceListItemSmall"
6 android:gravity="center_vertical"
7 android:paddingLeft="?android:attr/listPreferredItemPaddingLeft"
8 android:paddingRight="?android:attr/listPreferredItemPaddingRight"
9 android:minHeight="?android:attr/listPreferredItemHeightSmall"
10 android:textSize="20dp"
11/>