manually set type face attribute for ListPreference?

I am working with a ListPreference and want to set the type face of the title to 'serif' and the summary to 'sans'. Is there a way to do this, i.开发者_如何转开发e. to set the type faces manually?

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Look into this.

Edit 1:

<ListPreference 
   android:title="my title"
   android summary="my summary"/>