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# Property-based animations

Create animations by changing the properties of a view.

## Topics

### Essentials

[`UIViewPropertyAnimator`](/documentation/UIKit/UIViewPropertyAnimator)

A class that animates changes to views and allows the dynamic modification of those animations.

[`UIViewAnimating`](/documentation/UIKit/UIViewAnimating)

An interface for implementing custom animator objects.

### Timing curves

[`UITimingCurveProvider`](/documentation/UIKit/UITimingCurveProvider)

An interface for providing the timing information needed to perform animations.

[`UISpringTimingParameters`](/documentation/UIKit/UISpringTimingParameters)

The timing information for animations that mimics the behavior of a spring.

[`UICubicTimingParameters`](/documentation/UIKit/UICubicTimingParameters)

The timing information for animations in the form of a cubic Bézier curve.

### In-progress animations

[`UIViewImplicitlyAnimating`](/documentation/UIKit/UIViewImplicitlyAnimating)

An interface for modifying an animation while it’s running.


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