Ios 让音频引擎重复一个声音
我一直很难让下面的代码在audioURL上一遍又一遍地重复声音。现在,当视图打开时,它只播放一次,然后停止Ios 让音频引擎重复一个声音,ios,swift,Ios,Swift,我一直很难让下面的代码在audioURL上一遍又一遍地重复声音。现在,当视图打开时,它只播放一次,然后停止 import UIKit import AVFoundation class aboutViewController: UIViewController { var audioUrl = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("chimes", ofType: "wav")!) var a
import UIKit
import AVFoundation
class aboutViewController: UIViewController {
var audioUrl = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("chimes", ofType: "wav")!)
var audioEngine = AVAudioEngine()
var myPlayer = AVAudioPlayerNode()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
audioEngine.attachNode(myPlayer)
var audioFile = AVAudioFile(forReading: audioUrl, error: nil)
var audioError: NSError?
audioEngine.connect(myPlayer, to: audioEngine.mainMixerNode, format: audioFile.processingFormat)
myPlayer.scheduleFile(audioFile, atTime: nil, completionHandler: nil)
audioEngine.startAndReturnError(&audioError)
myPlayer.play()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
谢谢 经过一个小时又一个小时的搜索,这就做到了:
class aboutViewController: UIViewController {
var audioEngine: AVAudioEngine = AVAudioEngine()
var audioFilePlayer: AVAudioPlayerNode = AVAudioPlayerNode()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
let filePath: String = NSBundle.mainBundle().pathForResource("chimes", ofType: "wav")!
println("\(filePath)")
let fileURL: NSURL = NSURL(fileURLWithPath: filePath)!
let audioFile = AVAudioFile(forReading: fileURL, error: nil)
let audioFormat = audioFile.processingFormat
let audioFrameCount = UInt32(audioFile.length)
let audioFileBuffer = AVAudioPCMBuffer(PCMFormat: audioFormat, frameCapacity: audioFrameCount)
audioFile.readIntoBuffer(audioFileBuffer, error: nil)
var mainMixer = audioEngine.mainMixerNode
audioEngine.attachNode(audioFilePlayer)
audioEngine.connect(audioFilePlayer, to:mainMixer, format: audioFileBuffer.format)
audioEngine.startAndReturnError(nil)
audioFilePlayer.play()
audioFilePlayer.scheduleBuffer(audioFileBuffer, atTime: nil, options:.Loops, completionHandler: nil)
}
...
}