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
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")
其他回答
Swift 5“AVFoundation”\
简单的代码，没有错误处理，从本地路径播放音频
import AVFoundation
var audio:AVPlayer!
func stopAlarm() {
// To pause or stop audio in swift 5 audio.stop() isn't working
audio.pause()
}
func playAlarm() {
// need to declare local path as url
let url = Bundle.main.url(forResource: "Alarm", withExtension: "mp3")
// now use declared path 'url' to initialize the player
audio = AVPlayer.init(url: url!)
// after initialization play audio its just like click on play button
audio.play()
}
Swift 4、4.2和5
播放来自URL和项目的音频(本地文件)
import UIKit
import AVFoundation
class ViewController: UIViewController{
var audioPlayer : AVPlayer!
override func viewDidLoad() {
super.viewDidLoad()
// call what ever function you want.
}
private func playAudioFromURL() {
guard let url = URL(string: "https://geekanddummy.com/wp-content/uploads/2014/01/coin-spin-light.mp3") else {
print("error to get the mp3 file")
return
}
do {
audioPlayer = try AVPlayer(url: url as URL)
} catch {
print("audio file error")
}
audioPlayer?.play()
}
private func playAudioFromProject() {
guard let url = Bundle.main.url(forResource: "azanMakkah2016", withExtension: "mp3") else {
print("error to get the mp3 file")
return
}
do {
audioPlayer = try AVPlayer(url: url)
} catch {
print("audio file error")
}
audioPlayer?.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)
}
}
}
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:)
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")
