我想用Swift播放一个声音。
我的代码在Swift 1.0中工作，但现在在Swift 2或更新版本中不再工作。
override func viewDidLoad() {
super.viewDidLoad()
let url:NSURL = NSBundle.mainBundle().URLForResource("soundName", withExtension: "mp3")!
do {
player = try AVAudioPlayer(contentsOfURL: url, fileTypeHint: nil)
} catch _{
return
}
bgMusic.numberOfLoops = 1
bgMusic.prepareToPlay()
if (Data.backgroundMenuPlayed == 0){
player.play()
Data.backgroundMenuPlayed = 1
}
}
当前回答
如果代码没有产生任何错误，但你听不到声音-创建播放器作为一个实例:
static var player: AVAudioPlayer!
对我来说，当我做这个改变时，第一个解决方案起作用了:)
其他回答
Swift版本:5.4及以上
import AVFoundation
var player: AVAudioPlayer?
func playSound() {
guard let path = Bundle.main.path(forResource: "beep", ofType:"mp3") else {
return }
let url = URL(fileURLWithPath: path)
do {
player = try AVAudioPlayer(contentsOf: url)
player?.play()
} catch let error {
print(error.localizedDescription)
}
}
Swift 4(兼容iOS 12)
var player: AVAudioPlayer?
let path = Bundle.main.path(forResource: "note\(sender.tag)", ofType: "wav")
let url = URL(fileURLWithPath: path ?? "")
do {
player = try AVAudioPlayer(contentsOf: url)
player?.play()
} catch let error {
print(error.localizedDescription)
}
斯威夫特3
import AVFoundation
var myAudio: AVAudioPlayer!
let path = Bundle.main.path(forResource: "example", ofType: "mp3")!
let url = URL(fileURLWithPath: path)
do {
let sound = try AVAudioPlayer(contentsOf: url)
myAudio = sound
sound.play()
} catch {
//
}
//If you want to stop the sound, you should use its stop()method.if you try to stop a sound that doesn't exist your app will crash, so it's best to check that it exists.
if myAudio != nil {
myAudio.stop()
myAudio = nil
}
这很简单，而且可以完成工作!
import AVFoundation
var player: AVAudioPlayer!
let url = Bundle.main.url(forResource: "sound_name", withExtension: "mp3")
player = try! AVAudioPlayer(contentsOf: url!)
player.play()
import UIKit
import AVFoundation
class ViewController: UIViewController{
var player: AVAudioPlayer?
override func viewDidLoad() {
super.viewDidLoad()
}
@IBAction func notePressed(_ sender: UIButton) {
guard let url = Bundle.main.url(forResource: "note1", withExtension: "wav") else { return }
do {
try AVAudioSession.sharedInstance().setCategory((AVAudioSession.Category.playback), mode: .default, options: [])
try AVAudioSession.sharedInstance().setActive(true)
/* The following line is required for the player to work on iOS 11. Change the file type accordingly*/
player = try AVAudioPlayer(contentsOf: url, fileTypeHint: AVFileType.wav.rawValue)
/* iOS 10 and earlier require the following line:
player = try AVAudioPlayer(contentsOf: url, fileTypeHint: AVFileTypeMPEGLayer3) *//
guard let player = player else { return }
player.play()
} catch let error {
print(error.localizedDescription)
}
}
}
