Category information of an Activity through ActivityInfo class

I was expecting to see Categori开发者_JAVA技巧es that a particular Activity belongs to in ActivityInfo class but I could not find any reference to Category in the ActivityInfo class. Anybody knows where Category information is maintained for an Activity?

Activities do not have categories. Intent filters have categories. I don't see where you can readily find the IntentFilters for a given ActivityInfo, but you can get the IntentFilter from a ResolveInfo, and you get those via queryIntentActivities() and resolveActivity().