Assign multiple markers to google maps in iOS with initiating for every marker

Question

I need to display multiple markers on map by latitude and longitude, I tried below code to show two markers. It's working good , but if need to put marker on 20 or 30 locations , I need to alloc and init the GMSMarker that much of times. Is there any other way to show the multiple markers on map without initiating the GMSMarker for every place.

GMSMarker *marker = [[GMSMarker alloc] init];
marker.position = CLLocationCoordinate2DMake(17.4368, 78.4439);

#warning title and snipped must be dynamic
marker.icon = [UIImage imageNamed:@"one.png"];
marker.title = @"Sydney";
marker.snippet = @"Australia";
marker.appearAnimation = kGMSMarkerAnimationPop;
marker.map = _mapView;


GMSMarker *marker1 = [[GMSMarker alloc] init];
marker1.position = CLLocationCoordinate2DMake(17.398932, 78.472718);
marker1.icon = [UIImage imageNamed:@"one.png"];
marker1.map=_mapView;

Answer 1

Put the data for each marker in an array and then run a loop over them.

NSArray* arrMarkerData = @[
                           @{@"title": @"Sydney", @"snippet": @"Australia", @"position": [[CLLocation alloc]initWithLatitude:17.4368 longitude:78.4439]},
                           @{@"title": @"Other location", @"snippet": @"other snippet", @"position": [[CLLocation alloc]initWithLatitude:17.398932 longitude:78.472718]}
                           ];

for (NSDictionary* dict in arrMarkerData)
{
    GMSMarker *marker = [[GMSMarker alloc] init];
    marker.icon = [UIImage imageNamed:@"one.png"];
    marker.position = [(CLLocation*)dict[@"position"] coordinate];
    marker.title = dict[@"title"];
    marker.snippet = dict[@"snippet"];
    marker.appearAnimation = kGMSMarkerAnimationPop;
    marker.map = _mapView;
}

Answer 2

For Those who do Swift 5

  let arrMarkerData = [
         [
    "title": "Sydney",
    "snippet": "Australia",
    "position": CLLocationCoordinate2D(latitude: 17.4368, longitude: 78.4439)
],
[
    "title": "Other location",
    "snippet": "other snippet",
    "position": CLLocationCoordinate2D(latitude: 17.398932, longitude: 78.472718)
]
    ]
    
    for dict in arrMarkerData {
        guard let dict = dict as? [AnyHashable : Any] else {
            continue
        }
        let marker = GMSMarker()
        //marker.icon = UIImage(named: "one.png")
        marker.position = (dict["position"] as? CLLocationCoordinate2D)!
        marker.title = dict["title"] as? String
        marker.snippet = dict["snippet"] as? String
        marker.appearAnimation = .pop
        marker.map = mapView
    }