Class: UIAcceleration
Overview
An instance of the UIAcceleration class, called an acceleration event, represents immediate, three-dimensional acceleration data. To receive accelerometer events, register an application object as a delegate of the shared UIAccelerometer object, as described in UIAccelerometer Class Reference.
Instance Attribute Summary (collapse)
-
- timestamp
readonly
The relative time at which the acceleration event occurred.
-
- x
readonly
The acceleration value for the x axis of the device.
-
- y
readonly
The acceleration value for the y axis of the device.
-
- z
readonly
The acceleration value for the z axis of the device.
Method Summary
Methods inherited from NSObject
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Constructor Details
This class inherits a constructor from NSObject
Dynamic Method Handling
This class handles dynamic methods through the method_missing method in the class NSObject
Instance Attribute Details
- (NSTimeInterval) timestamp (readonly)
The relative time at which the acceleration event occurred. (read-only) This value indicates the time relative to the device CPU time base register. Compare acceleration event timestamps to determine the elapsed time between them. Do not use a timestamp to determine the exact time at which an event occurred.
- (UIAccelerationValue) x (readonly)
The acceleration value for the x axis of the device. (read-only) With the device held in portrait orientation and the screen facing you, the x axis runs from left (negative values) to right (positive values) across the face of the device.
- (UIAccelerationValue) y (readonly)
The acceleration value for the y axis of the device. (read-only) With the device held in portrait orientation and the screen facing you, the y axis runs from bottom (negative values) to top (positive values) across the face of the device.
- (UIAccelerationValue) z (readonly)
The acceleration value for the z axis of the device. (read-only) With the device held in portrait orientation and the screen facing you, the z axis runs from back (negative values) to front (positive values) through the device.