How to use options.animationCurve? about typist HOT 7 CLOSED

It is simply a converter from single value of type UIViewAnimationCurve to single value of type UIViewAnimationOptions. You could do, for example:

let animationCurve = UIViewAnimationCurve.easeInOut
let animationOption = viewAnimationOptionForCurve(curve: animationCurve)
let options = [.beginFromCurrentState, option]

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Hey, thanks for opening issue! Typist is designed to be used with UIViewPropertyAnimator (see below) rather older UIView animation blocks.

UIViewPropertyAnimator(duration: TimeInterval, curve: UIViewAnimationCurve, animations: (() -> Void)? = nil)

However, I'll consider adding few other representations for curves for pre-iOS 10 compatibility reasons.

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I used this which seems right to me https://gist.github.com/miguellara/9e498715ee93540d79e9. I would suggest that it should be included to Typist

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@nezhyborets does this work for multiple values like [.beginFromCurrentState, .curveEaseInOut]?

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Updated for Swift3

func animationOptions(fromAnimationCurve curve: UIViewAnimationCurve) -> UIViewAnimationOptions {
    switch (curve) {
        case .easeInOut: return UIViewAnimationOptions.curveEaseInOut
        case .easeIn: return UIViewAnimationOptions.curveEaseIn
        case .easeOut: return UIViewAnimationOptions.curveEaseOut
        case .linear: return UIViewAnimationOptions.curveLinear
    }
}

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@totocaster I switched to this code

func keyboardWillShow(options: Typist.KeyboardOptions) {
    self.loginButtonConstraint.constant = -options.endFrame.height-Style.Size.Padding
    UIViewPropertyAnimator(duration: options.animationDuration, curve: options.animationCurve) {
        self.view.layoutIfNeeded()
    }.startAnimation()
}

but now getting this error

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Unknown/Unsupported UIViewAnimationCurve type 7'

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@kgn I believe you have to keep reference to instance of UIViewPropertyAnimator while animation happens. If you don't wish to do so use UIViewPropertyAnimator .runningPropertyAnimator(withDuration:delay:options:animations:completion:). It also start animation automatically.

See UIViewPropertyAnimator docs here.

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