A data sample from the device's three accelerometers.
- iOS 4.0+
- macOS 10.15+Beta
- Mac Catalyst 13.0+Beta
- watchOS 2.0+
- Core Motion
An application accesses
CMAccelerometer objects through the block handler specified as the last parameter of the
start method and through the
accelerometer property, both declared by the
CMMotion class. The superclass of
CMLog, defines a
timestamp property that records when the acceleration measurement was taken.