how to show an arrow on mapview showing the driving direction
gmsmapview, google-maps-sdk-ios, ios, ios6, iphone
Solution
You don't actually need to convert anything to degrees. The `newHeading` object you get from your delegate method should be enough. The GMS-reference for the animateToBearing: requires a `CLLocationDirection` as a parameter. The newHeading.magneticHeading or newHeading.trueHeading provided by the delegate method is an object of this type. Also: you're converting the newHeading to a float, where as a `CLLocationDirection` is a double, so the GMS-function will also require a double. See reference.
Problem
I want to show an arrow image on GMSMapView(i am using google maps sdk). Now if i am driving(arrow is showing my current location) and i have to take left turn then i have to change bearing of mapView. But i have no idea how to do this. I am trying to change bearing in didUpdateHeading ``` - (void)locationManager:(CLLocationManager *)manager didUpdateHeading:(CLHeading *)newHeading{ if(newHeading.headingAccuracy>0) { float heading = newHeading.magneticHeading; //in degrees //heading = (heading*M_PI/180); //NSLog(@"heading=%f", heading); [mapView animateToBearing:heading]; }} ``` headingFilter is set to 12. I have also tried trueHeading, but magneticHeading is giving better results not accurate though. Please help.