On Thu, Dec 30, 2010 at 7:49 PM, Ijaz <[email protected]> wrote:
> App1 call App2 to open Pdf `, and App2 get open and show Pdf
> Then How to come back to App1?

The user presses the BACK button.

App1 has no right to take over App2, any more than Firefox has the
right to shut down Microsoft Word after opening a Word document. You
opened App2 -- now it is the *user* who gets to make the choice of
what to do next.

-- 
Mark Murphy (a Commons Guy)
http://commonsware.com | http://github.com/commonsguy
http://commonsware.com/blog | http://twitter.com/commonsguy

Android Training in Atlanta: http://bignerdranch.com/classes/android

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