attribute="@[packagename:]resourcetype/resourceidentifier"

<?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"
android:padding="@dimen/standard_border">
<EditText
android:id="@+id/myEditText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/stop_message"
android:textColor="@color/opaque_blue"
/>
</LinearLayout>