通過 XML 在文本視圖 (TextView) 設定陰影效果 (shadow)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/hello"
    android:shadowColor="#FFFFFF"
    android:shadowRadius="5"
    android:shadowDx="10"
    android:shadowDy="10"
    />
</LinearLayout>