text: <?xml version="1.0" encoding="utf-8"?>
  <selector xmlns:android="http://schemas.android.com/apk/res/android">
      <item android:state_pressed="true" android:drawable="@drawable/lib_button_detail_pressed"></item>
      <item android:state_focused="true" android:drawable="@drawable/lib_button_detail_pressed"></item>
      <item android:state_selected="true" android:drawable="@drawable/lib_button_detail_pressed"></item>
      <item android:drawable="@drawable/lib_button_detail_normal"></item>
  </selector>