ravenshore, Author at helpMeCodeSwift.com

About ravenshore

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ravenshore has written 27 articles so far, you can find them below.

Creating a delay function

A delay function is something that is always useful. Uses are really countless. Here is one of the best methods I’ve come across. First you create the function:

func delay(delay:Double, closure:()->()) {
        
        dispatch_after(
            dispatch_time( DISPATCH_TIME_NOW, Int64(delay * Double(NSEC_PER_SEC))), dispatch_get_main_queue(), closure)
        
        
    }

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func delay(delay:Double, closure:()->()) {

dispatch_after(

dispatch_time( DISPATCH_TIME_NOW, Int64(delay * Double(NSEC_PER_SEC))), dispatch_get_main_queue(), closure)

}

And then you just use it whenever you need to:

delay(5) {     // takes a Double value for the delay in seconds

// put the delayed action/function here

}

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delay(5) { // takes a Double value for the delay in seconds

// put the delayed action/function here

}

Adding Basic Audio with variable delayed play to your app

First you need to find the audio file you want to use and then add it to your project. Then:

// import this at the app beginning to be able to play Audio
import AVFoundation</code>

class ViewController: UIViewController {

// declare the path to the audio file and the audio Player
var boing = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("bong", ofType: "wav")!)
var audioPlayer = AVAudioPlayer()

override func viewDidLoad() {
super.viewDidLoad()

// Delay Function == Pretty Cool :)

func delay(delay:Double, closure:()-&gt;()) {

dispatch_after(
dispatch_time( DISPATCH_TIME_NOW, Int64(delay * Double(NSEC_PER_SEC))), dispatch_get_main_queue(), closure)

}

//Audio Function with the delay built in

func playAudio (time: Double) {

delay(time) {

self.audioPlayer = AVAudioPlayer(contentsOfURL: self.boing, error: nil) // point to the audio file
self.audioPlayer.prepareToPlay() // prepare the Audio Player
self.audioPlayer.play()
}
}

// Call the Audio and select the delay ( seconds )

playAudio(0.2)
playAudio(1.15)

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// import this at the app beginning to be able to play Audio

import AVFoundation</code>

class ViewController: UIViewController {

// declare the path to the audio file and the audio Player

var boing = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("bong", ofType: "wav")!)

var audioPlayer = AVAudioPlayer()

override func viewDidLoad() {

super.viewDidLoad()

// Delay Function == Pretty Cool :)

func delay(delay:Double, closure:()->()) {

dispatch_after(

dispatch_time( DISPATCH_TIME_NOW, Int64(delay * Double(NSEC_PER_SEC))), dispatch_get_main_queue(), closure)

}

//Audio Function with the delay built in

func playAudio (time: Double) {

delay(time) {

self.audioPlayer = AVAudioPlayer(contentsOfURL: self.boing, error: nil) // point to the audio file

self.audioPlayer.prepareToPlay() // prepare the Audio Player

self.audioPlayer.play()

}

// Call the Audio and select the delay ( seconds )

playAudio(0.2)

playAudio(1.15)

This is the basic function. If you have any questions let me know.

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