@SuppressWarnings("unchecked")
    private ArrayList<GitReference> getChoices() {
        return getArguments().getParcelableArrayList(ARG_CHOICES);
    }
Confirm message and deliver callback to given activity

@param activity
@param requestCode
@param title
@param message
@param choices
@param selectedChoice
app/src/main/java/com/github/pockethub/android/ui/ref/RefDialogFragment.java