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
iOS 12 - Xcode 10 beta 6 - Swift 4.2
只使用1个IBAction并将所有按钮指向该1个动作。
import AVFoundation
var player = AVAudioPlayer()
@IBAction func notePressed(_ sender: UIButton) {
print(sender.tag) // testing button pressed tag
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 {
print ("There is an issue with this code!")
}
}
其他回答
首先导入这些库
import AVFoundation
import AudioToolbox
像这样设置委托
AVAudioPlayerDelegate
在按钮动作或其他动作上写这样漂亮的代码:
guard let url = Bundle.main.url(forResource: "ring", withExtension: "mp3") else { return }
do {
try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
try AVAudioSession.sharedInstance().setActive(true)
player = try AVAudioPlayer(contentsOf: url, fileTypeHint: AVFileType.mp3.rawValue)
guard let player = player else { return }
player.play()
}catch let error{
print(error.localizedDescription)
}
100%的工作在我的项目和测试
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 AVFoundation
import AudioToolbox
public final class MP3Player : NSObject {
// Singleton class
static let shared:MP3Player = MP3Player()
private var player: AVAudioPlayer? = nil
// Play only mp3 which are stored in the local
public func playLocalFile(name:String) {
guard let url = Bundle.main.url(forResource: name, withExtension: "mp3") else { return }
do {
try AVAudioSession.sharedInstance().setCategory(AVAudioSession.Category.playback)
try AVAudioSession.sharedInstance().setActive(true)
player = try AVAudioPlayer(contentsOf: url, fileTypeHint: AVFileType.mp3.rawValue)
guard let player = player else { return }
player.play()
}catch let error{
print(error.localizedDescription)
}
}
}
调用这个函数
MP3Player.shared.playLocalFile(name: "JungleBook")
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:)
Swift 4和iOS 12测试:
import UIKit
import AVFoundation
class ViewController: UIViewController{
var player: AVAudioPlayer!
override func viewDidLoad() {
super.viewDidLoad()
}
func playTone(number: Int) {
let path = Bundle.main.path(forResource: "note\(number)", ofType : "wav")!
let url = URL(fileURLWithPath : path)
do {
player = try AVAudioPlayer(contentsOf: url)
print ("note\(number)")
player.play()
}
catch {
print (error)
}
}
@IBAction func notePressed(_ sender: UIButton) {
playTone(number: sender.tag)
}
}
