user2732294 user2732294 - 6 months ago 231
iOS Question

How set Custom Annotation markers ( animated rings around a point) on GMSMapView

Using Google maps iOS SDK I have implemented a mapView
in that i have created markers as follows

// Creates a marker in the center of the map.
GMSMarker *marker = [[GMSMarker alloc] init];
marker.position = CLLocationCoordinate2DMake(-33.86, 151.20);
marker.title = @"Sydney";
marker.snippet = @"Australia";

marker.icon = [UIImage imageNamed:@"point1.png"];

marker.map = mapView_;


But i need to Display animated images ie some sequence of images to display, animated rings around a point, instead of original GMSMarker

sequence of images are point1.png point2.png point3.png point4.png point5.png

Can any one help me to achieve this

Answer

in

- (RMMapLayer *)mapView:(RMMapView *)mpView layerForAnnotation:(RMAnnotation *)annotation
{

  UIImageView *pulseRingImg = [[UIImageView alloc] initWithFrame: CGRectMake(-30, -30, 78, 78)];
    pulseRingImg.image = [UIImage imageNamed:@"PulseRing.png"];
     pulseRingImg.userInteractionEnabled = NO;

    CABasicAnimation *theAnimation;
    theAnimation=[CABasicAnimation animationWithKeyPath:@"transform.scale.xy"];
    theAnimation.duration=2.0;
    theAnimation.repeatCount=HUGE_VALF;
    theAnimation.autoreverses=NO;
    pulseRingImg.alpha=0;
    theAnimation.fromValue=[NSNumber numberWithFloat:0.0];
    theAnimation.toValue=[NSNumber numberWithFloat:1.0];
    pulseRingImg.alpha = 1;
    [pulseRingImg.layer addAnimation:theAnimation forKey:@"pulse"]; 
     pulseRingImg.userInteractionEnabled = NO;

    [mapView addSubview:pulseRingImg];
    [marker addSublayer:pulseRingImg.layer];

 return marker;

}

PulseRing.png in [UIImage imageNamed:@"PulseRing.png"] is

PulseRing.png

Getting reference from:

ios - how to do a native "Pulse effect" animation on a UIButton

CABasicAnimation *theAnimation;

theAnimation=[CABasicAnimation animationWithKeyPath:@"opacity"];
theAnimation.duration=1.0;
theAnimation.repeatCount=HUGE_VALF;
theAnimation.autoreverses=YES;
theAnimation.fromValue=[NSNumber numberWithFloat:1.0];
theAnimation.toValue=[NSNumber numberWithFloat:0.0];
[myButton.layer addAnimation:theAnimation forKey:@"animateOpacity"]; 
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