ios - 如何在 SpriteKit 中向游戏添加音乐

Question

我在尝试向游戏添加声音时遇到了问题。我在下面将其添加到 View Controller 中，当我构建并运行时，我会收到错误。当我运行下面的代码时:

var interstitialAd : GADInterstitial!
var player: AVAudioPlayer!

override func viewDidLoad() {
    super.viewDidLoad()

    let path = Bundle.main.path(forResource: "gameMusic.mp3", ofType:"mp3")!
    let url = URL(fileURLWithPath: path)

    do {
        let sound = try AVAudioPlayer(contentsOf: url)
        player = sound
        sound.play()
    } catch {
        print("file not found")
    }




    if let view = self.view as! SKView? {
        // Load the SKScene from 'GameScene.sks'

我收到以下错误:

fatal error: unexpectedly found nil while unwrapping an Optional value 2017-05-21 17:35:01.262683 gameTest2[1660:363851] fatal error: unexpectedly found nil while unwrapping an Optional value

有人可以帮忙吗？

Answer 1

当您使用Bundle.main.path(forResource:,ofType:)时，第一部分应该是资源的名称，第二部分应该是其类型。这意味着您的代码应该是:

let path = Bundle.main.path(forResource: "gameMusic", ofType:"mp3")!