custom button: change style when pressed

Question

I created button with some shadow using a style:

<style name="test">
  <item name="android:shadowColor">#FFFFFF</item>
  <item name="android:shadowRadius">1</item>
  <item name="android:shadowDx">1</item>
  <item name="android:shadowDy">1</item>
</style>

This applies a white shadow on the button's text in its normal state. I was just wondering if anyone knows if there is a way to remove this shadow when the button is a pressed state. In other words, is there a way to apply another style when the button is in another (pressed) state?

Thanks in advance!

edit

bold.xml:

<resources>
    <style name="bold_text">
        <item name="android:textStyle">bold</item>
    </style>
</resources>

button.xml:

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/test_pressed"
              style="@style/bold_text"
          android:state_pressed="true"/>
    <item android:drawable="@drawable/test_focused"
          android:state_focused="true"/>
    <item android:drawable="@drawable/test_normal"/>
</selector>

my layout:

<Button
        ...
        android:background="@drawable/button"/>

Answer 1

You want a ColorStateList http://developer.android.com/guide/topics/resources/color-list-resource.html