Removing Annotations

Hi all, i try to get this work, But is not remove the annotations.

mapview.removeAnnotations(cars); not working mapview.addAnnotation(cars); working

b1.addEventListener('click', function()
 {
mapview.removeAnnotations(cars);
b1.hide();
b1on.show(); 
});    
  b1on.addEventListener('click', function()
 {    
mapview.addAnnotation(cars); 
b1on.hide();
b1.show();
});

Is cars an array of annotations or not. You are using addAnnotation <-- singular to add the annotation, but then you are using removeAnnotations <-- plural to remove the same variable.

Assuming cars is a single annotation object, try either: mapview.removeAnnotation(cars); or mapview.removeAnnotations([cars]);

I have the same issue using Titanium 3.0 beta running on the iPad emulator (iOS 6.0). I get the desired result if I call mapview.removeAnnotations.apply(mapview, annotations) (where annotations is an array).

The documentation indicates that mapview.removeAnnotations is unavailable on Android, however. I wonder if fixing this bug would make it work on Android.