MKMapView add annotation and remove it after some time

Question

I have a MKMapView and I add some annotations to it. I want to remove annotations one by one after some time that it was added. I need that every annotation have its own lifespan. Is it possible? How should I achieve that?

Answer 1

Your best choice is to use -(void)removeAnnotations:(NSArray *)annotations from your MKMapView.

Just save your annotation somewhere, for example a NSDictionary with {date : annotationObject}, and retrieve it when you want to delete.

For example:

//Call somewhere to delete after 2 seconds
[self performSelector:@selector(deleteAnnotation:) withObject:annotation afterDelay:2.f]

//this function will remove the annotation from your map
-(void) deleteAnnotation:(id) object{
    [self.map removeAnnotations:@[object]];
}