Instance Property


Defines how the spring’s motion should be damped due to the forces of friction.


@property CGFloat damping;


The default value of the damping property is 10. Reducing this value reduces the energy loss with each oscillation: the animated value will overshoot the toValue and the settlingDuration may be greater than the duration. Increasing the value increases the energy loss with each duration: there will be fewer and smaller oscillations and the settlingDuration may be smaller than the duration.

See Also

Configuring Physical Attributes


The initial velocity of the object attached to the spring.


The mass of the object attached to the end of the spring.


The estimated duration required for the spring system to be considered at rest.


The spring stiffness coefficient.

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