In my Android application, I want a setting to be toggleable in it's menu like the Dialer app does for speaker and mute. You can see a picture below:
http://www.isaacwaller.com/images/acall.png
You see how the Speaker, Mute and Hold options are toggle buttons - you can tap them again and they will toggle the green color. They may do this in a custom way, but I suspect it is a option (I tried setting the Checkable attribute).
You could do something like the snippet below as well, originally sourced from anddev.org
public boolean onPrepareOptionsMenu(final Menu menu) {
if(super.mMapView.isTraffic())
menu.findItem(MENU_TRAFFIC_ID).setIcon(R.drawable.traffic_off_48);
else
menu.findItem(MENU_TRAFFIC_ID).setIcon(R.drawable.traffic_on_48);
return super.onPrepareOptionsMenu(menu);
}