Re: [android-developers] "When" are the overlays drawn on the map?

If the updates don't happen until the onCreate or onClickEventHandler
methods return, first guess is you're misusing the UI thread. That is,
the UI thread is busy in your while loop and can't get anything else
done, like drawing the overlays. Welcome to UI programming!

I strongly suggest you put you loop into an AsyncTask. and use its
callback methods to update the UI. Read the docs carefully.

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