android - Copy information of GoogleMaps another activity -

i trying make app using googlemaps api. have 2 activity.

this main activity. http://i.stack.imgur.com/6enof.png

map in activity not changeable. when click draw route button, go other activity mapsactivity. , pick pin , draw route. http://i.stack.imgur.com/fduia.png

now when click ok button, want copy map route mapsactivity mainactivity.

i tried stuff can't it. can me? :)

this mapsactivity

and mainactivity

what try starting second activity mainactivity because want result (the result waypoints of route).

to android provides standard functionality startactivityforresult() , onactivityresult().

for detailed information have at: http://developer.android.com/training/basics/intents/result.html