Android开发学习笔记 Gallery和GridView浅析(3)

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  
  android:layout_width="fill_parent"  
  android:layout_height="fill_parent" 
  >   
  <ImageSwitcher  
    android:id="@+id/switcher" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:layout_alignParentTop="true" 
    android:layout_alignParentLeft="true" 
    />   
  <Gallery 
    android:id="@+id/gallery" 
    android:background="#55000000" 
    android:layout_width="fill_parent" 
    android:layout_height="60dp" 
    android:layout_alignParentBottom="true" 
    android:layout_alignParentLeft="true" 
    android:gravity="center_vertical" 
    android:spacing="16dp" 
    /> 
</RelativeLayout>