You need an Activity on order to receive the result.
If its just for organisation of code then call other class from Activty class.
public class Result {
public static void activityResult(int requestCode, int resultCode, Intent data){
...
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Result.activityResult(requestCode,resultCode,data);
...
}