iosanimationannotationsapple-watchwkinterfacegroup

Animated annotation on WKInterfaceMap Watchkit

Is there anyway to have an animated annotation for WKInterfaceMap of Watchkit?

I have 35 images to form the animation. Currently I am using a NSTimer which calls 

-(void)addAnnotation:(CLLocationCoordinate2D)location withImageNamed:(NSString *)name centerOffset:(CGPoint)offset

method with a different image names but the result is not efficient and the animation is not smooth as everytime it has to first remove the previous annotation and add a new one.

Any comment/suggestion is greatly appreciated.

Solution

  • I think this can not be achieved using WKInterfaceMap but it can be achieved using WKInterfaceImage. I have not implemented all steps but flow can be,

    Generate snapshot of Map with selected lat-long in centre as UIImage using MKMapSnapshotter,

    MKMapSnapshotOptions * snapOptions= [[MKMapSnapshotOptions alloc] init];
CLLocation * Location = [[CLLocation alloc] initWithLatitude:23.0300 longitude:72.5800];
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(Location.coordinate, 300, 300);
snapOptions.region = region;
snapOptions.size = CGSizeMake(300, 300);
snapOptions.scale = [[UIScreen mainScreen] scale];

MKMapSnapshotter *mapSnapShot = [[MKMapSnapshotter alloc] initWithOptions:snapOptions];
[mapSnapShot startWithCompletionHandler:^(MKMapSnapshot *snapshot, NSError *error) {
    if (error) {
        NSLog(@"[Error] %@", error);
        return;
    }

    UIImage *image = snapshot.image;//map image
    NSLog(@"%@",image);
    [self.mapImage setImage:image];
}];