Instance Property

magnetometerData

The latest sample of magnetometer data.

Declaration

var magnetometerData: CMMagnetometerData? { get }

Discussion

If no magnetometer data is available, the value of this property is nil. An app that is receiving magnetometer data after calling startMagnetometerUpdates() periodically checks the value of this property and processes the magnetometer data.

See Also

Managing Magnetometer Updates

var magnetometerUpdateInterval: TimeInterval

The interval, in seconds, at which the system delivers magnetometer data to the block handler.

func startMagnetometerUpdates(to: OperationQueue, withHandler: CMMagnetometerHandler)

Starts magnetometer updates on an operation queue and with a specified handler.

func startMagnetometerUpdates()

Starts magnetometer updates without a block handler.

func stopMagnetometerUpdates()

Stops magnetometer updates.

typealias CMMagnetometerHandler

The type of block callback for handling magnetometer data.