Android :: Different Hint Strings For Searchable Activities?

I am supporting search in my app, I'd like to display a unique hint in the search box depending on what activity is being viewed.

To that end, I have a two different searchable.xml files in my xml folder:

CODE:..........

When I reference searchable.xml, everything works as expected. The second searchable xml file has the same contents as the first, but this does not work:

CODE:............

Pressing the search key does not display the search box. If I just reference the first searchable instead, it works fine:

CODE:.....................

Again, both have the same content. It looks like there is a dependency on the name "searchable.xml" within android?

If we're not allowed to have searchables named anything but searchable.xml, how do we specify different hint strings for different activities?

For example:

CODE:..............