iOS GMaps removing old GMSMarker from map - ios

Question

I want to add new GMSMarker in the map and remove the old one. Previously I was using [map clear]; method and adding new marker. It was working fine. But I dont want that. I want to add new marker and remove the old marker without clearing the map each time.
My code:
if(markerMYLocation == nil)
{
markerMYLocation = [[GMSMarker alloc] init];
}
markerMYLocation.map = nil;
markerMYLocation.position = CLLocationCoordinate2DMake(latitude_Point, longitude_Point);
markerMYLocation.title = #"You";
markerMYLocation.groundAnchor = CGPointMake(0.5, 0.5);
markerMYLocation.icon = [UIImage imageNamed:#"white.png"];
markerMYLocation.map = mapViewGoog;
Question:
1) What is the correct way of removing and adding the marker?
2)I am initializing marker only in my viewDidLoad. Is that the correct way of doing this or should I initialize each time I add it?

Answer 1

Marker add on Map View
GMSMarker *marker = [GMSMarker markerWithPosition:[marker.getcoordinateObject MKCoordinateValue]];
marker.icon =[UIImage imageNamed:#“”];
marker.title = #“Driver Pin”
marker.map = mapView_;
[allMarkeronMap addObject:googleMapsDriverPin]; // Add maker on Array
[_mapView addSubview:mapView_];
//Make MutableArray on viewDidLoad
NSMutableArray * allMarkeronMap =[NSMutableArray alloc] init];
particualr marker or old marker remove on mapView
for (GMSMarker *pin in allMarkeronMap) {
if (pin.userData == #"Driver Pin"){
pin.map = nil;
}
}