Instance Method

motionBegan:withEvent:

Tells the receiver that a motion event has begun.

Declaration

- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event;

Parameters

motion

An event-subtype constant indicating the kind of motion. A common motion is shaking, which is indicated by UIEventSubtypeMotionShake.

event

An object representing the event associated with the motion.

Discussion

UIKit informs the responder only when a motion event starts and ends. It does not report intermediate shakes. Motion events are delivered initially to the first responder and are forwarded up the responder chain as appropriate.

The default implementation of this method forwards the message up the responder chain.

See Also

Responding to Motion Events

- motionEnded:withEvent:

Tells the receiver that a motion event has ended.

- motionCancelled:withEvent:

Tells the receiver that a motion event has been cancelled.