grid view notes

<?xml version="1.0" encoding="utf-8"?>
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/gridview"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:columnWidth="90dp"
    android:numColumns="6"
    android:verticalSpacing="3dp"
    android:horizontalSpacing="10dp"
    android:stretchMode="columnWidth"
    android:gravity="center"
android:soundEffectsEnabled="true"/>

The example helloGridview has the vertical spacing as 10dp.  Changing to 3 did not have an effect.  I am setting the text size in the baseadapter like so:


       textView.setText(mGearStrings[position]);
        textView.setTextSize(TypedValue.COMPLEX_UNIT_SP,7.0f);