viewForAnnotation didn't moves the userLocation - ios

Question

I've implemented - (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation { method to change the default location of userLocation Annotation. Inside this method I've used:
if (annotation==(mapView.userLocation)) {
MKAnnotationView *myAnotation = [[MKAnnotationView alloc] init];
myAnotation.image = self.userPointImage.image;
myAnotation.centerOffset = CGPointMake(0, 250);
return myAnotation;
}
else
{
return nil;
}
Which successfully moves the default userLocation annotation to center bottom. But as I'm also using heading so when move my phone it is still rotating the map from center.
- (void)locationManager:(CLLocationManager *) manager didUpdateHeading:(CLHeading *) newHeading {
[self.mapView setUserTrackingMode:MKUserTrackingModeFollowWithHeading animated:true];
}
But the userLocation annotation is below. So how to do that?
UPDATE I found this question and tried applying it. But as I'm using heading so it crashes the app.
In my didUpdateUserLocation method I added [self moveCenterByOffset:CGPointMake(0, 200) from:userLocation.coordinate]; and this method is as follows:
- (CLLocationCoordinate2D)moveCenterByOffset:(CGPoint)offset from:(CLLocationCoordinate2D)coordinate
{
CGPoint point = [self.mapView convertCoordinate:coordinate toPointToView:self.mapView];
point.x += offset.x;
point.y += offset.y;
CLLocationCoordinate2D center = [self.mapView convertPoint:point toCoordinateFromView:self.mapView];
return center;
}
and then in my didUpdateUserLocation method I updated it as: MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance([self moveCenterByOffset:CGPointMake(0, -250) from:userLocation.coordinate], 800.0f, 200.0f); and [mapView setRegion:region animated:NO]; as I'm using heading so animation is set to NO. But now as I run the code it starts jerking between center and the new point.

Answer 1

MKCoordinateRegion region = mapClinicsView.region;
set 'region.center'
It will helps you to navigate your map center position
make sure 'region.center' and annotation center latitute and longitute is same