我是编程的初学者,并开始学习Swift来制作钢琴应用程序以获得乐趣。
按下按钮时播放声音很麻烦。 我搜索了一些网站,但我太初学了解......
http://www.tmroyal.com/playing-sounds-in-swift-avaudioplayer.html http://www.rockhoppertech.com/blog/swift-avfoundation/
请您告诉我如何在按下“PainoC”按钮时播放“C.m4a”声音?
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) {
}
}
答案 0 :(得分:27)
我希望它会对你有所帮助。
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 :(
}
}
答案 1 :(得分:9)
Swift 3
语法现在如下:
首先在代码之上添加import AVFoundation
以访问AVFoundation Framework
。
import UIKit
import AVFoundation
class ViewController: UIViewController {
//this is your audio playback instance
var audioPlayer = AVAudioPlayer()
override func viewDidLoad() {
super.viewDidLoad()
// address of the music file.
let music = Bundle.main.path(forResource: "Music", ofType: "mp3")
// copy this syntax, it tells the compiler what to do when action is received
do {
audioPlayer = try AVAudioPlayer(contentsOf: URL(fileURLWithPath: music! ))
try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryAmbient)
try AVAudioSession.sharedInstance().setActive(true)
}
catch{
print(error)
}
}
//this runs the do try statement
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
@IBAction func play(_ sender: AnyObject) {
audioPlayer.play()
}
@IBAction func stop(_ sender: AnyObject) {
audioPlayer.stop()
}
}
答案 2 :(得分:4)
在Swift 4中:
import AVFoundation
class ViewController: UIViewController, ARSCNViewDelegate, ARSessionDelegate {
let popSound = Bundle.main.url(forResource: "Pop", withExtension: "mp3")
var audioPlayer = AVAudioPlayer()
override func viewDidLoad() {
do {
audioPlayer = try AVAudioPlayer(contentsOf: popSound!)
audioPlayer.play()
} catch {
print("couldn't load sound file")
}
}
答案 3 :(得分:2)
import UIKit
import AVFoundation
class ViewController: UIViewController {
var audioPlayer = AVAudioPlayer()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
@IBAction func button1Action(sender: AnyObject) {
let CatSound = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("Meow-sounds", ofType: "mp3")!)
do {
audioPlayer = try AVAudioPlayer(contentsOfURL: CatSound)
audioPlayer.prepareToPlay()
} catch {
print("Problem in getting File")
}
audioPlayer.play()
}
}
答案 4 :(得分:2)
在Swift 5中
这对我有用,请尝试一下。
import UIKit
import AVFoundation
class ViewController: UIViewController, AVAudioPlayerDelegate{
var audioPlayer = AVAudioPlayer()
override func viewDidLoad() {
super.viewDidLoad()
}
@IBAction func notePressed(_ sender: UIButton) {
let soundURL = NSURL(fileURLWithPath: Bundle.main.path(forResource: "note1", ofType: "wav")!)
do{
audioPlayer = try AVAudioPlayer(contentsOf: soundURL as URL)
}catch {
print("there was some error. The error was \(error)")
}
audioPlayer.play()
}
}
答案 5 :(得分:0)
在Swift 3中:
import UIKit
import AVFoundation
class QuestionView: UIViewController {
var btnButton = UIButton()
var player = AVAudioPlayer()
override func viewDidLoad() {
super.viewDidLoad()
btnButton.frame = CGRect(x: 100, y: 100, width: 100, height: 100)
btnButton.backgroundColor = UIColor.blue
btnButton.addTarget(self, action: #selector(ButtonSound), for: .touchUpInside)
}
func ButtonSound() {
do {
// make sure to add this sound to your project
let audioPath = Bundle.main.path(forResource: "Click", ofType: "mp3")
try player = AVAudioPlayer(contentsOf: URL(fileURLWithPath: audioPath!) as URL)
} catch {
print("Error !")
}
player.play()
}
}
答案 6 :(得分:0)
如果您只想单击效果,下面的代码将起作用。
鸟文件必须在xcode中。
self.run(SKAction.playSoundFileNamed("Bird.mp3", waitForCompletion:false))
答案 7 :(得分:0)
SWIFT 5
import AVFoundation
class Test {
var player: AVAudioPlayer!
func playAudio() {
let url = Bundle.main.url(forResource: "Sound", withExtension: "mp3")
player = try! AVAudioPlayer(contentsOf: url!)
player.play()
}
}