Sample code for list/detail Android Activities -

my understanding best practices simple app list , detail activities startactivityforresult(). let's have app model product (id, name, price) , productlistactivity , productdetailactivity.

i having hard time understanding of activities contain startactivityforresult() , have setresult() , result be.

my understanding best practices simple app list , detail >activities startactivityforresult().

i not agree statement.

in opinion, best way set [onlistitemclicklistener](http://developer.android.com/reference/android/app/listactivity.html#onlistitemclick(android.widget.listview, android.view.view, int, long)) in productlistactivity.

when item in list clicked, onlistitemclick() method called, arguments you'll able figure out item in list clicked (for example using second argument - position, position of clicked item in list, starting zero).

once figure out item clicked, you'll create intent , put required extras in there (for example position of clicked item). you'll use intent start productdetailactivity, calling startactivity().

then, in productdetailactivity you'll intent using getintent(), extract extras intent , use them decide display in activity (for example, display text associated position in listview productlistactivity). can extras intent using getextra*() methods.

you use startactivityforresult() if wanted result activity, in example doesn't seem case, want display details. imagine activity did calculations , wanted final value back, using startactivityforresult() 1 of ways of passing value back.