android - How to get result from external application's activity? -

how result external application's activity application has triggered know change.

for e.g:

my application needs check if user has been logged in. if not logged in, allows login through external app.

so current app. call onactivityforresult() trigger external app's activity , onactivityresult() called processing exit status of external app's activity.

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solved.

sorry goof up.

i have realized made mistakes entire session of testing. understanding , code fine, every time made changes both files, never ran external app. updated code.

even found solution myself, considering nanne's answer hint solution, marked accepted answer.

thanks , sorry ur precious time.

your activity you've started should set result-value setresult(intvalue)

your first activity, called startactivityforresult() can check result code provided in example

 protected void onactivityresult(int requestcode, int resultcode,          intent data) {      if (requestcode == pick_contact_request) {          if (resultcode == result_ok) {              //do          }      }  }