android - Problem with spinner -

i have option menu when pressed brings in front spinner 2 options:

    <item>choose car</item>      <item>search route</item>   

when selecting item gets me different activity.

the first item selected default when press menu item class!!

question:

how proceed when choose menu item,initially have no item selected in spinner?

thank u!!

you add item (none) , add first one. user have explicitly select 1 of other choices:

<item>none selected</item> <item>choose car</item> <item>search route</item>