animate(_:changes:completion:)

Declaration

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

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)
}