Iterating views array and adding view to canvas

[Ollstar]

Hi,

I have an array of views. I want to show each view briefly on the canvas when the user taps the play button. I tried to iterate through my array and add the view and and then remove it just as soon as the next view is ready to be added. Here is my button's tap gesture code:

    playButton.addTapGestureRecognizer { (location, state) -> () in
        print("Play")
        self.canvas.remove(self.canvasView)
        for frame in self.frames {

            self.canvas.add(frame)

            delay(1) {
                self.canvas.remove(frame)

            }
        }
    }

What ends up happening is the whole loop happens at once so we add all the views and remove them all and end up with a blank canvas. Am I approaching this wrong? How can I accomplish what I outlined in the beginning?

[Ollstar]

Maybe I should use C4Timer instead.

[travis]

What's canvasView?

Also, you're adding a 1 second delay to ALL the frames, so they will all be removed at the same time. If you want them to be removed/added sequentially you need to do something like:

var currentIndex = 1
var currentFrame: View?

func addAndRemove() {
    currentFrame?.removeFromSuperview()
    currentFrame = frames[currentIndex]
    currentIndex++

    if currenIndex < frames.count {
        delay(1) {
            self.addRemove()
        }
    }
}

[Ollstar]

The canvasView is just a view on the canvas that takes up the top half of the screen. I was removing it because it's not showing anymore. This recursive function would work great but I was able to get what I was looking for using C4Timer:

    playButton.addTapGestureRecognizer { (location, state) -> () in
        print("Play")
        if self.frames.count > 0 {
            var trashFrames = self.frames
            let t = C4Timer(interval: 0.25, count: self.frames.count) {
                self.canvasView.add(trashFrames.first)
                trashFrames.removeFirst()
            }
            t.fire()
            t.start()
        }
    }