When my user clicks on my AppWidget, I want to launch either my own
provided activity or an activity from a different app if that app is
installed.  My own activity is a stripped down version of the
information that can be displayed by that other application.  If that
other application is available, I'd prefer to launch it in instead of my
own.  I may include this as a preference option and allow the user to
decide which activity to launch.

How can I check whether a specific app is installed before attempting to
launch it (or before including it in my preferences) and only launch my
own activity if that app is not available?

Thanks.

...Jake

-- 
Jake Colman -- Android Tinkerer

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