Make a UIViewPropertyAnimator never complete

Question

Problem Description

I have a UIViewPropertyAnimator managing a blur, among other things, and I\'d like to use it just for its fractionComplete

Answer 1

With iOS11 is now possible to set

var pausesOnCompletion: Bool { get set }

on the UIViewPropertyAnimator

When the value of this property is true, the animator remains in the active state when the animation finishes, and it does not execute its completion handler. Keeping the animator in the active state allows you to reverse the animation even after it has finished. When the value of this property is false, the animator automatically transitions to the inactive state when the animation finishes, thereby concluding the animation. The default value of this property is false.

source: https://developer.apple.com/documentation/uikit/uiviewpropertyanimator/2909004-pausesoncompletion