The phase of a finger touch.


The phase of a UITouch instance changes in a certain order during the course of an event. You access this value through the phase property.



case began

A finger for a given event touched the screen.

case moved

A finger for a given event moved on the screen.

case stationary

A finger is touching the surface but hasn't moved since the previous event.

case ended

A finger for a given event was lifted from the screen.

case cancelled

The system canceled tracking for the touch, as when (for example) the user moves the device against his or her face.