In iOS, what is the difference between the Magnetic Field values from the Core Location and Core Motion frameworks?
To unravel this I’ve spent a bit too much time digging through the Apple docs. There are three ways of obtaining magnetometer data 1/ Core Motion framework CMMotionManagers’s CMMagnetometer class 2/ Core Motion framework CMDeviceMotion CMCalibratedMagneticField property 3 / Core Location framework CLLocationManager’s CLHeading 1/ supplies ‘raw’ data from the magnetometer. 2/ and 3/ return … Read more