How to use the feature provided in Pinyin IME?

Question

I try to use some features provided in Pinyin IME. For example, In contacts, I want to know each Chinese character's spelling. I already made one API at PinyinIME service.

How can I access InputMethodService in contacts ? through InputMethodManager?

I can get InputMethodManager in contacts program. But I cannot get the handle or instance of InputMethodService through InputMethodManager.

How can I reference to another package's class?

Or, I have to write a service for loading the Pinyin's share library and provide it for contacts. How can I get this kind service?