[android-developers] best way to implement a thread requring a result from a function that must be run on the UI thread

I am in a thread that I did not create, its part of a library and I
need to generate a result which can only be done in the UI thread.
Any good tutorial on the best way to achieve this?

I know I will have to post a handler to the UI thread, but whats the
best way for the UI thread to return the result? And I have to make
the other thread wait for the result.

A good code snipped would help. Thanks.

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