How to move marker with animation from one location to another smoothly in google map ios

Question

Created marker like below based on latitudes and longitudes help me to move marker to another location with animation.

GMSMarker *marker1 = [[GMSMarker alloc] init];
marker1.position = CLLocationCoordinate2DMake(12.9716, 77.5946);
marker1.title = @"Bangalore";
marker1.groundAnchor = CGPointMake(0.2, 0.9);
marker1.appearAnimation = kGMSMarkerAnimationPop;
marker1.icon = [UIImage imageNamed:@"Flag Filled -50.png"];
marker1.snippet = @"India";
marker1.map = _mapView;

possible duplicate - http://stackoverflow.com/questions/19115293/how-to-smoothly-move-gmsmarker-along-coordinates-in-objective-c — adjuremods, Apr 06 '16 at 02:34

score 7 · Answer 1 · answered Mar 14 '18 at 06:34

Using Xcode 9 Swift 4 : Moving markers smoothly.

@objc func moveMarker(){
    self.lat += 0.0017
    CATransaction.begin()
    CATransaction.setValue(2.0, forKey: kCATransactionAnimationDuration)
    CATransaction.setCompletionBlock {
        self.marker.groundAnchor = CGPoint(x: 0.5, y: 0.5)
    }
    self.mapView.animate(to: GMSCameraPosition.camera(withLatitude: self.lat, longitude: self.lon, zoom: 15))
    self.marker.position = CLLocationCoordinate2D(latitude: self.lat, longitude: self.lon)
    CATransaction.commit()
    self.marker.map = self.mapView
}

Your Marker will move on Map like Uber's Car on map.

It is not necessary to mention .groundAnchor property, Read Google Docs for that.

Also, Update the self.lat and self.lon before passing the values in CATransaction. ( lat and lon are Global variable with default value)

Lastly I've used Timer.scheduledTimer to call

    override func viewDidAppear(_ animated: Bool) {
       var timer = Timer()
       timer = Timer.scheduledTimer(timeInterval: 1.0, target: self, selector: #selector(moveMarker), userInfo: nil, repeats: true)
    }

I bet it'll will help some one. =)

Result :

You can add marker rotation and bearing according to how your backend is sending coordinates, Bearing angle etc. — Yash Bedi, Mar 14 '18 at 06:35
I think your animation interval should be less than timer interval .... — jayant rawat, Jan 29 '20 at 12:21

score 0 · Answer 2 · answered Apr 05 '16 at 06:37

0

You can use setRotation method of GMSMarker.Hope it will work.

answered Apr 05 '16 at 06:37

Akshay Hastekar

158
11

Set rotation makes marker to rotate by some degrees..but i need to move marker from one lacation to another.thanks for the help – Kumar Swamy Apr 05 '16 at 06:39
Please once look at setPosition and pass lat long and again fitMap. – Akshay Hastekar Apr 05 '16 at 06:41
That changes the marker position but i need to animate from old location to new based on lat long values. – Kumar Swamy Apr 05 '16 at 06:42

How to move marker with animation from one location to another smoothly in google map ios

2 Answers2