更改手机窗口画面底色——color.xml定义颜色

res/drawable/main.xml

<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"
    	       android:id="@+id/absoluteLayout1" 
       	       android:layout_width="fill_parent" 
       	       android:layout_height="fill_parent" 
                android:background="@color/white">
<TextView android:layout_height="wrap_content" 
          android:layout_width="wrap_content"></TextView>
</AbsoluteLayout>

res/values/color.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="red">#00ff0000</color>
    <color name="green">#ff00ff00</color>
    <color name="white">#ffffffff</color>
</resources>

#ff00ff00 前面两位表示透明度 后面表示RGB