无“+”候选人产生预期的语境结果类型‘AnyObject’斯威夫特错误3

Question

我有这个功能动画一个UIImageView：

override func deselectAnimation(_ icon : UIImageView, textLabel : UILabel, defaultTextColor : UIColor) { 
    playMoveIconAnimation(icon, values:[icon.center.y + 4.0, icon.center.y]) 
    playDeselectLabelAnimation(textLabel) 
    textLabel.textColor = defaultTextColor 

    if let iconImage = icon.image { 
     let renderImage = iconImage.withRenderingMode(.alwaysTemplate) 
     icon.image = renderImage 
     icon.tintColor = defaultTextColor 
    } 
} 

func playMoveIconAnimation(_ icon : UIImageView, values: [AnyObject]) { 

    let yPositionAnimation = createAnimation("position.y", values:values, duration:duration/2) 

    icon.layer.add(yPositionAnimation, forKey: "yPositionAnimation") 
} 

后，我升级到斯威夫特3我开始收到以下错误：

No '+" candidates produce the expected contextual result type 'AnyObject' 

我在一个类似question该函数应该有返回值的阅读，但我不知道如何实现这一点。我会感激你的帮助解决这个错误

Answer 1

如果你希望只值类型为CGFloat将其更改为：

func playMoveIconAnimation(_ icon : UIImageView, values: [CGFloat]) { 

    let yPositionAnimation = createAnimation("position.y", values:values, duration:duration/2) 

    icon.layer.add(yPositionAnimation, forKey: "yPositionAnimation") 
} 

Answer 2

感谢Nirav d和利奥Dabus我能解决这个问题，我没有解释，但是这是在结束工作的代码：

override func deselectAnimation(_ icon : UIImageView, textLabel : UILabel, defaultTextColor : UIColor) { 
    playMoveIconAnimation(icon, values: [CGFloat(icon.center.y + 4.0)]) 
    playDeselectLabelAnimation(textLabel) 
    textLabel.textColor = defaultTextColor 

    if let iconImage = icon.image { 
     let renderImage = iconImage.withRenderingMode(.alwaysTemplate) 
     icon.image = renderImage 
     icon.tintColor = defaultTextColor 
    } 
} 

func playMoveIconAnimation(_ icon : UIImageView, values: [Any]) { 

    let yPositionAnimation = createAnimation("position.y", values:values as [AnyObject], duration:duration/2) 

    icon.layer.add(yPositionAnimation, forKey: "yPositionAnimation") 
}