通过与延迟阵列环 - 斯威夫特 [英] loop through array with delay - Swift

问题描述

我试着去遍历数组，每次照亮了一种颜色，而一旦其完成通过每一个项目循环，调用另一个函数来运行。到目前为止，我有这样的：

Im trying to loop through an array, lighting up one color at a time, and once its finished looping through every item, calling another function to run. So far i have this:

//Delay function from http://stackoverflow.com/questions/24034544/dispatch-after-gcd-in-swift/24318861#24318861
func delay(delay:Double, closure:()->()) {
    dispatch_after(
        dispatch_time(
            DISPATCH_TIME_NOW,
            Int64(delay * Double(NSEC_PER_SEC))
        ),
        dispatch_get_main_queue(), closure)
}

@IBAction func computerTurn(){
    if(isFirstLevel){levelLabel.text = ("Level 1"); isFirstLevel = false}
    else{ level++ }

    var gameOrderCopy = gameOrder
    var randomNumber = Int(arc4random_uniform(4))
    gameOrder.append(randomNumber)
    var i = 0

    for number in gameOrder{

        if number == 0{
            self.greenButton.highlighted = true
            self.delay(1){
                self.greenButton.highlighted = false
                }
        }

        else if number == 1{
            self.redButton.highlighted = true
            self.delay(1){
                self.redButton.highlighted = false
               }

        }

        else if number == 2{
            self.yellowButton.highlighted = true
            self.delay(1){
                self.yellowButton.highlighted = false
                }
        }
      else if number == 3{
        self.blueButton.highlighted = true
        self.delay(1){
            self.blueButton.highlighted = false
            }
        }
    }
}

但此刻，它是所有延迟一秒，然后立刻照亮了所有的颜色。我需要的是点亮顺序的颜色，每个之间的第二延迟。在此先感谢！

But at the moment, all it does is delay one second, then lighting up all the colors at once. What i need is to light up the color in sequential order, with a second delay between each. Thanks in advance!

推荐答案

不要做延迟1，把 VAR delayTime = 1 环以上，并在循环做 self.delay（delayTime ++）

Don't do delay 1, put var delayTime = 1 above the loop, and in the loop do self.delay(delayTime++)

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