Swift 中 Lottie 动画的闭包函数

Question

有没有办法知道 Lottie animation 何时完成？我需要 delete 一个 tableViewCell 但只有在 animation 完成之后。这是 animation:

设置：

    //MARK: setup Loading-Animation
func setupLoadingAnimation(){

    successAnimation.translatesAutoresizingMaskIntoConstraints = false
    self.contentView.addSubview(successAnimation)

    successAnimation.leadingAnchor.constraint(equalTo: contentView.leadingAnchor, constant: -30).isActive = true
    successAnimation.centerYAnchor.constraint(equalTo: contentView.centerYAnchor).isActive = true
    successAnimation.widthAnchor.constraint(equalToConstant: 160).isActive = true
    successAnimation.heightAnchor.constraint(equalToConstant: 160).isActive = true

    successAnimation.isHidden = true
    successAnimation.loopMode = .playOnce
}

操作：

@objc func checkButtonTapped(){
    self.deleteWishCallback?()
    self.successAnimation.isHidden = false
    self.successAnimation.play()
}

我想实现的是能够在self.successAnimation.play()的闭包中调用self.deleteWishCallback?()。有没有办法完成这项工作？在此找不到任何内容！

Answer 1

Lottie动画基础播放

AnimationView.play(completion: LottieCompletionBlock?)

从当前状态播放动画到时间线结束。动画停止时调用完成块。

参数：：完成：动画完成时调用的完成块。如果动画完成，块将被传递 true，如果动画被中断，块将被传递 false。可选。

示例：

starAnimationView.play { (finished) in
      // Animation finished
      //here if finised is true you can perform the action of deleting the tableviewCell
    }

你可以找到更多HERE

Swift 中 Lottie 动画的闭包函数

Closure function with Lottie Animation in Swift

ios

swift

closures

lottie