How to smoothly move GMSMarker along coordinates in Objective c

Question

I'm using google map sdk. I want to update gps coordinates of pin after each 5 seconds. Currently I'm just updating position attribute of GMSMarker. But it gives jump effect. I want to move marker smoothly on map.
Here is my code to update position of marker

-(void)updateLocationoordinates(CLLocationCoordinate2D) coordinates
{ 
  if (marker == nil) {
      marker = [GMSMarker markerWithPosition:coordinates];
      marker.icon = [UIImage imageNamed:CAR_FOUND_IMAGE];
      marker.map = mapView_;
  } else
  marker.position = coordinates; 
}

score 35 · Accepted Answer · answered Oct 02 '13 at 02:02

35

Change your else block to be something more like this:

[CATransaction begin];
[CATransaction setAnimationDuration:2.0];
marker.position = coordindates;
[CATransaction commit];

We enable you to use Core Animation for animating Google Maps.

For a worked sample, please see AnimatedCurrentLocationViewController.{c,m} in the SDK sample application.

answered Oct 02 '13 at 02:02

Brett

2,399
1
17
23

Thank you @Brett. I updated the google sdk then these animations worked fine. – Sadia Oct 02 '13 at 06:43
For me, this actually didn't work. In fact, it completely broke animation of the .position property. The good news is that is *exactly* what I wanted: a way to turn off the animation of the .position property. Thanks a ton! For reference, I set the animation duration to 0.0, but having a non-0 value still didn't animate. – u2Fan Aug 06 '14 at 03:59
2

OK - I lied. It works exactly as the poster mentions. I'd just screwed up my test. I noticed it too late to edit my first comment, however. – u2Fan Aug 06 '14 at 04:11
2

Can anyone send code snippet to animate polyline of google maps. – Kumar Swamy Apr 05 '16 at 07:57
@Sadia can you tel mel how did you achieve this? – Ganesh Kumar Jun 14 '16 at 05:20
@Brett .. How can i do this in swift – Uma Madhavi Dec 03 '16 at 11:32
@UmaMadhavi the syntax for using Core Animation from Swift is covered in Apple's documentation. Here's a [starting point](https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/CoreAnimation_guide/CoreAnimationBasics/CoreAnimationBasics.html). – Brett Dec 15 '16 at 01:59
@Brett, I have used this animation and it work really good. Thanks & vote up. But i see a problem which i mentioned on this post. http://stackoverflow.com/questions/41060922/gmsmarker-bouncing-around-the-corners-on-gmspolyline . can you help me in achieving animation in this situation. I have the coordinates around the corner that user has skipped. But i cant find appropriate animation which can animate on those missed points. I tried Blocks on CATransaction , CAAnimation, Basic Key frame but do not find an appropriate one. – NewStackUser Dec 16 '16 at 12:40
i ask what @KumarSwamy asked can anyone please share the code snippet for animating polylines – Nitish Makhija Feb 28 '17 at 10:12

score 1 · Answer 2 · answered Aug 15 '18 at 08:35

1

Brett's Answer in swift -3 and 4

CATransaction.begin()
CATransaction.setAnimationDuration(2.0)
marker.position = coordindates
CATransaction.commit()

answered Aug 15 '18 at 08:35

Ajumal

1,048
11
33

score 0 · Answer 3 · edited Jun 01 '17 at 13:14

0

just Initialize marker in view did load and update it when you want to do it no need of any kind of animation like

- (void)viewDidLoad {
    [super viewDidLoad];
    ..write code here
        marker = [[GMSMarker alloc] init];
}
    marker.position = CLLocationCoordinate2DMake([latitudue doubleValue], [longitude doubleValue]);

edited Jun 01 '17 at 13:14

Steve Lovell

2,564
2
13
16

answered Jun 01 '17 at 09:38

Asad Farooq

191
1
13

How to smoothly move GMSMarker along coordinates in Objective c

3 Answers3

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