CoreAnimation blinking animation stops after the view gets out of view and comes back.

[migueldeicaza]

No description provided.

[JoeMatt]

More details on this?
Just looked at it on an my Mac the cursor was working. I did have to make my changes to fix the build first though.

This may work, adding isRemovedOnCompletion to false

    func updateCursorStyle (style: CursorStyle = .blinkBlock) {
        switch style {
        case .blinkUnderline, .blinkBlock, .blinkBar:
            let anim = CABasicAnimation.init(keyPath: #keyPath (CALayer.opacity))
            anim.duration = 0.7
            anim.autoreverses = true
            anim.repeatCount = Float.infinity
            anim.fromValue = NSNumber (floatLiteral: 1)
            anim.toValue = NSNumber (floatLiteral: 0.3)
            anim.isRemovedOnCompletion = false
            anim.timingFunction = CAMediaTimingFunction (name: .easeInEaseOut)
            sub.add(anim, forKey: #keyPath (CALayer.opacity))
        case .steadyBar, .steadyBlock, .steadyUnderline:
            sub.removeAllAnimations()
            sub.opacity = 1
        }

if that doesn't work, you need to recreate the anim on focus.

In my opinion, it should pause in the background anyway if it doesn't already. (looks to still blink when not focused for me).

[migueldeicaza]

Sorry, I should have written more about this.

CoreAnimation stops animations when the view is no longer presented (either you navigate away, or you go to the background on iOS). I implemented your suggestion to enable/disable the animation on focus (using the first responder hooks)