快速，按下按钮时如何播放声音

小编典典

快速，按下按钮时如何播放声音

swift

我是编程的初学者，并开始学习Swift，以制作一款有趣的钢琴应用。

按下按钮时我无法播放声音。我已经搜索了一些网站，但是我还是个初学者，无法理解…

http://www.tmroyal.com/playing-sounds-in-swift-avaudioplayer.html

http://www.rockhoppertech.com/blog/swift-
avfoundation/

您能告诉我按“ PainoC”按钮时如何播放“ C.m4a”声音吗？

这是我的“ view controller.swift”。

import UIKit

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()   
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }

    @IBAction func PianoC(sender: AnyObject) {
    }
}

阅读 278

2020-07-07

共1个答案

小编典典

希望对您有帮助。

import UIKit
import AVFoundation

class ViewController: UIViewController {
   // make sure to add this sound to your project
   var pianoSound = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("C", ofType: "m4a"))
   var audioPlayer = AVAudioPlayer()

   override func viewDidLoad() {
       super.viewDidLoad()

       audioPlayer = AVAudioPlayer(contentsOfURL: pianoSound, error: nil)
       audioPlayer.prepareToPlay()
   }

   override func didReceiveMemoryWarning() {
       super.didReceiveMemoryWarning()
   }

   @IBAction func PianoC(sender: AnyObject) {
       audioPlayer.play() 
   }

}

最新的Swift 4.2：

   let pianoSound = URL(fileURLWithPath: Bundle.main.path(forResource: "btn_click_sound", ofType: "mp3")!)
   var audioPlayer = AVAudioPlayer()

   @IBAction func PianoC(sender: AnyObject) {
       do {
            audioPlayer = try AVAudioPlayer(contentsOf: pianoSound)
            audioPlayer.play()
       } catch {
          // couldn't load file :(
       } 
   }

2020-07-07