Instance Property

timingFunction

The timing function used for all animations within this animation proxy group.

Declaration

var timingFunction: CAMediaTimingFunction? { get set }

Discussion

The NSAnimationContext timing function is analogous to the CATransaction setAnimationTimingFunction(_:) method.

Animations initiated through the “animator” proxy syntax, that do not have an explicitly specified timing functions, will inherit the enclosing NSAnimationContext instance’s timingFunction if it is not nil (which is the default).

As with the existing duration property, changing a timing function causes the same change in the underlying CATransaction instance’s animationTimingFunction().

Also as with the duration property, you may change the timingFunction any number of times within a given NSAnimationContext beginGrouping() and endGrouping() block. Changes to the timingFunction will apply to any animations that are subsequently initiated in that NSAnimationContext grouping, until the timingFunction is possibly changed again.

See Also

Modifying the Animation Duration

var duration: TimeInterval

The duration used by animations created as a result of setting new values for an animatable property.