---
title: "animate(_:changes:completion:)"
framework: appkit
role: symbol
role_heading: Type Method
path: "appkit/nsanimationcontext/animate(_:changes:completion:)"
---

# animate(_:changes:completion:)

Animate changes to one or more views using the specified SwiftUI animation.

## Declaration

```swift
static func animate(_ animation: Animation, changes: () -> Void, completion: (() -> Void)? = nil)
```

## Parameters

- `animation`: The animation to use for the changes.
- `changes`: A closure containing the changes to animate.
- `completion`: A closure to execute after the animation completes.

## Discussion

Discussion Animations performed using this method can be smoothly retargeted while preserving velocity, just like animations in SwiftUI views. // Grow the window with a smooth spring animation NSAnimationContext.animate(.smooth) {     var scaledFrame = myWindowContentView.frame.applying(CGAffineTransform(scaleX: 1.5, y: 1.5)     myWindowContentView.setFrameSize(myScaledFrame) } note: When a SwiftUI animation is used for animating AppKit’s NSAnimatablePropertyContainers, the animations are run in-process, and are not backed by CAAnimations in the render server.