使用 TouchesBegan 停止 viewDidAppear 中的动画 Swift

Question

我是 Swift 的新手，我想使用 touchesBegan 停止来自 viewDidAppear 的所有动画，但它对删除 self.view.layer.removeAllAnimatoins() 和加速动画。

我通过将 self.view.layer.removeAllAnimatoins() 放在 touchesBegan 内，然后将所有 alpha 设置为正常。

像这样，

override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {

    self.view.layer.removeAllAnimations()

    self.btnO.alpha = 1.0
    self.btnX.alpha = 1.0

    self.titleMultiplayer.alpha = 1.0

    self.questionOX.alpha = 1.0
}

这是另一个加速动画的代码，

import UIKit
import QuartzCore

class ViewController: UIViewController {

     @IBOutlet var titleMultiplayer: UILabel!

     @IBOutlet var questionOX: UILabel!

     @IBOutlet var btnO: UIButton!
     @IBOutlet var btnX: UIButton!


     override func viewWillAppear(animated: Bool) {
         super.viewWillAppear(animated)

         titleMultiplayer.alpha = 0.0

         questionOX.alpha = 0.0

         btnO.alpha = 0.0
         btnX.alpha = 0.0

     }

     override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {

         UIView.animateWithDuration(0.001, animations: {

             self.titleMultiplayer.alpha = 1.0

             self.btnO.alpha = 1.0
             self.btnX.alpha = 1.0

             self.questionOX.alpha = 1.0

         })


     }


     override func viewDidAppear(animated: Bool) {
         super.viewDidAppear(animated)



         UIView.animateWithDuration(4.0, delay: 0.0, options: UIViewAnimationOptions.AllowUserInteraction, animations: {

             self.titleMultiplayer.alpha = 1.0

            }, completion: nil)


        UIView.animateWithDuration(4.0, delay: 2.3, options: UIViewAnimationOptions.AllowUserInteraction, animations: {

            self.btnO.alpha = 1.0

            }, completion: nil)

        UIView.animateWithDuration(4.0, delay: 4.3, options: UIViewAnimationOptions.AllowUserInteraction, animations: {

            self.btnX.alpha = 1.0

            }, completion: nil)

        UIView.animateWithDuration(4.0, delay: 6.3, options: UIViewAnimationOptions.AllowUserInteraction, animations: {

            self.questionOX.alpha = 1.0

            }, completion: nil)



     }

     override func viewDidLoad() {
        super.viewDidLoad()



     }

我想知道是否可以用 viewDidAppear 做这样的事情。

请帮助和建议我。

非常感谢:]

Answer 1

您可以使用 removeAllAnimations() 从 UI 组件的层中删除当前动画，然后您可以做任何您想做的事情。

在您的情况下，您可以在 touchesBegan 方法中以这种方式删除动画：

btnO.layer.removeAllAnimations()
btnX.layer.removeAllAnimations()
titleMultiplayer.layer.removeAllAnimations()
questionOX.layer.removeAllAnimations()

您可以使用 removeAllAnimations 从 UI 组件的层中删除当前动画，然后您可以做任何您想做的事。

使用 TouchesBegan 停止 viewDidAppear 中的动画 Swift

Using TouchesBegan to stop animation in viewDidAppear Swift

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swift