android: how do i open another app from my app?

Posted by mtmurdock on Stack Overflow See other posts from Stack Overflow or by mtmurdock
Published on 2010-05-27T17:14:07Z Indexed on 2010/05/27 17:31 UTC
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android

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api

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activity

I understand how to use intents and startActivity() when opening another activity within my own app, but how do you start a different app? specifically:

-how do you determine if the user has the needed app installed on their device? -how do you start that app? -how do you pass parameters to that app? -how do you find all this info out for a specific app (say Adobe reader, or google maps)?

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