ios - compass image rotate as here map

Question

Map Orientation works as this code. But compass image is not rotate as per map rotate. Please help how to make compass as here map

 - (void)mapView:(NMAMapView *)mapView didReceiveRotation:(float)rotation atLocation:(CGPoint)location
{
[self.mapView setOrientation:180 withAnimation:NMAMapAnimationLinear];
 _comPassImg.transform =CGAffineTransformMakeRotation(rotation);//not working smoothly
}

Answer 1

You can listen to NMAMapView::NMAMapEvent::NMAMapEventOrientationChanged instead, e.g.:

[mapView respondToEvents:NMAMapEventOrientationChanged withBlock:^BOOL (NMAMapEvent event, NMAMapView *mapView, id eventData) {
    _comPassImg.transform = CGAffineTransformMakeRotation(mapView.orientation);
    return YES;
}];

You can also try NMAOrientableMapMarker to see if that works for you.