if there are more than one app registered for handling a mail then a pup-up selection comes where you usually can choose always this "app".
or your "intent" not said what it is and all apps think hey i can handle this file/data.
if there are more than one app registered for handling a mail then a pup-up selection comes where you usually can choose always this "app".
or your "intent" not said what it is and all apps think hey i can handle this file/data.