Starts magnetometer updates without a block handler.
SDKs
Framework
func startMagnetometerUpdates()
You can get the latest magnetometer data through the magnetometer property. You must call stop when you no longer want your app to process magnetometer updates.
var magnetometerThe interval, in seconds, at which the system delivers magnetometer data to the block handler.
func startStarts magnetometer updates on an operation queue and with a specified handler.
func stopStops magnetometer updates.
var magnetometerThe latest sample of magnetometer data.
typealias CMMagnetometerThe type of block callback for handling magnetometer data.