How to define an animation? - ios

Question

I'm looking for a way to let a variable equal an animation. So that later I can refer to it and change the speed of the animation.
// Image Animation
UIView.animate(withDuration: 2.5, delay: 0.8, options: [.repeat, .curveLinear], animations: {
self.image.frame = CGRect(x: 250, y: 1200, width: 45, height: 45)
}, completion: nil)
// Function Speed Check
func speedcheck() {
if score > 25 {
Image.stopAnimating()
// Image Animation
UIView.animate(withDuration: 1.0, delay: 0.8, options: [.repeat, .curveLinear], animations: {
self.Image.frame = CGRect(x: 250, y: 1200, width: 45, height: 45)
}, completion: nil)
UIView.commitAnimations()
}
}
"Image.stopAnimating()"
As shown in the example, this line does not stop the animation that was previously executed above, because it does not know what to cease. Therefore, I'm wondering how to define the initial animation, so from there I can increase the speed.
What's the best way to speed up an animation when the score is greater than 25?
Any help would be appreciated.

Answer 1

You actually don't need to assign the animation to a variable. I don't think that is even possible.
By speeding up the animation, you mean reducing the duration of the animation.
To do that just hold the animationDuration value in a global variable say animationSpeed.
Just use this animationSpeed variable value in the UIView.animate() method for the duration param.
Declare a global speed param:
var animationSpeed = TimeInterval.init(5.0)
Use this in your UIView.animate() method:
UIView.animate(withDuration: animationSpeed) {
}
Now you can change this animationSpeed param value when a condition is satisfied:
if condition {
self.animationSpeed = TimeInterval.init(2.5)
}
When you give the animation options as .repeat, the values captured initially while entering the animation block will be used throughout the animation. This is not something that we want. Use something like this
func animateView() {
UIView.animate(withDuration: self.speed, delay: 0.0, options: [.curveLinear], animations: {
// Your animation
}, completion: { flag in
if flag {
if speed > 25 {
self.speed = TimeInterval.init(2.0)
self.view.layer.removeAllAnimations()
}
self.animateView()
}
})
}