How to repeat same animation while working with CABasicAnimation

Question

I am creating my own custom activity indicator. I created a circular view with CAShapeLayer and I managed to stroke the circular layer but I want to do it indefinitely until the user wants to stop. The following is my stroke layer animation code.

private func getStrokeEndAnimation()->CABasicAnimation{
        let animation = CABasicAnimation(keyPath: "strokeEnd")
        animation.fromValue = 0.0
        animation.toValue = 1.0
        animation.duration = 2.0
        animation.fillMode = .forwards
        animation.isRemovedOnCompletion = false
        return animation
}

There is an instance property on BasicAnimation named repeatCount but if I specify that my activity indicator will animate the given number of times like if I do

animation.repeatCount = 3

it will animate only 3 times. How can I make sure that the animation keeps going indefinitely until, I stop it.

Answer 1

animation.repeatCount = .greatestFiniteMagnitude will for all practical purposes repeat it forever.