ORKDeviceMotionRecorderConfiguration Class Reference
| Inherits from | ORKRecorderConfiguration : NSObject |
|---|---|
| Declared in | ORKRecorder.h |
The ORKDeviceMotionRecorderConfiguration class represents a configuration
that records device motion data during an active step.
Device motion data is the processed motion data provided by CoreMotion and obtained
from a CMMotionManager object. The data can include measures of the overall device orientation
obtained from combining accelerometer, magnetometer, and gyroscope data.
Device motion data is serialized to JSON and returned as an ORKFileResult object.
For details on the format, see CMDeviceMotion+ORKJSONDictionary.
To use a recorder, include its configuration in the recorderConfigurations property
of an ORKActiveStep object, include that step in a task, and present it with
a task view controller.
frequency
The frequency of motion data collection in samples per second (Hz).
@property (nonatomic, readonly) double frequencyDeclared In
ORKRecorder.h
– initWithIdentifier:frequency:
Returns an initialized device motion recorder configuration using the specified frequency.
- (instancetype)initWithIdentifier:(NSString *)identifier frequency:(double)frequencyParameters
identifier |
The unique identifier of the recorder configuration. |
|---|---|
frequency |
Motion data collection frequency in samples per second (Hz). |
Return Value
An initialized device motion recorder configuration.
Discussion
This method is the designated initializer.
Declared In
ORKRecorder.h
– initWithCoder:
Returns a new device motion recorder configuration initialized from data in the given unarchiver.
- (instancetype)initWithCoder:(NSCoder *)aDecoderParameters
aDecoder |
Coder from which to initialize the device motion recorder configuration. |
|---|
Return Value
A new device motion recorder configuration.
Declared In
ORKRecorder.h