我有两个swift文件 - 我的ViewController:UIViewController和AudioPlayer:AVAudioPlayer .
我的AudioPlayer文件具有此功能
func seaGullSound() {
var tmp = AVAudioPlayer()
var seaGullSound = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("Gulls", ofType: "mp3")!)
AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback, error: nil)
AVAudioSession.sharedInstance().setActive(true, error: nil)
var error:NSError?
tmp = AVAudioPlayer(contentsOfURL: seaGullSound, error: &error)
tmp.prepareToPlay()
tmp.play()
println("This function got called!")
}
我试图通过点击一个按钮在我的ViewController中调用该函数,使用以下代码:
@IBAction func playSound(sender: AnyObject) {
var audio = AudioPlayer()
audio.seaGullSound()
}
单击按钮时不播放声音 . 但是,print语句有效 . 如果我将seaGullSound()移动到ViewController文件,我可以播放音频,所以我知道mp3确实有效 . 我还没有将音频移动到ViewController,因为我想养成不将所有代码压缩到一个文件中的习惯 . 在此先感谢您的帮助 .
edit:
class HighScore: UIViewController {
var audioInitializer = AudioPlayer()
func updateHighScore(score:Int) -> String {
NSUserDefaults.standardUserDefaults().integerForKey("highscore")
//Check if score is higher than NSUserDefaults stored value and change NSUserDefaults stored value if it's true
if score > NSUserDefaults.standardUserDefaults().integerForKey("highscore") {
//call applause sound
audioInitializer.applauseSound()
//set score
NSUserDefaults.standardUserDefaults().setInteger(score, forKey: "highscore")
NSUserDefaults.standardUserDefaults().synchronize()
}
NSUserDefaults.standardUserDefaults().integerForKey("highscore")
//use below line to reset high score for testing
//NSUserDefaults.standardUserDefaults().removeObjectForKey("highscore")
return String(NSUserDefaults.standardUserDefaults().integerForKey("highscore"))
}}
这是带声音的文件:
class AudioPlayer: AVAudioPlayer {
var soundMaster = AVAudioPlayer()
func tappingSound() {
var tapSoundURL = NSBundle.mainBundle().URLForResource("tapSound", withExtension: "mp3")
AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback, error: nil)
AVAudioSession.sharedInstance().setActive(true, error: nil)
var error:NSError?
soundMaster = AVAudioPlayer(contentsOfURL: tapSoundURL, error: &error)
soundMaster.prepareToPlay()
soundMaster.play()
}
//need to call in highscore.swift
func applauseSound() {
var tapSoundURL = NSBundle.mainBundle().URLForResource("applause", withExtension: "mp3")
AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback, error: nil)
AVAudioSession.sharedInstance().setActive(true, error: nil)
var error:NSError?
soundMaster = AVAudioPlayer(contentsOfURL: tapSoundURL, error: &error)
soundMaster.prepareToPlay()
soundMaster.play()
println("did this get called?")
}}
1 回答
您只需将tmp AVAudioPlayer的声明移出方法即可 . 将其声明为类变量 .
您还应该使用URLForResource而不是pathForResource:
试试这样: