我正在学习 Cocoa 编程。

我只需要在我自己的 Cocoa 项目中完成或失败异步任务时播放声音。

所以我想知道最简单的方法是什么。

虽然应该很容易，但我还没有在Swift中找到它。

提前致谢

最佳答案

最简单？将其放入项目的 Swift 文件中:

Swift 4.2 到 5.3

import AppKit



public extension NSSound {
    static let basso     = NSSound(named: .basso)
    static let blow      = NSSound(named: .blow)
    static let bottle    = NSSound(named: .bottle)
    static let frog      = NSSound(named: .frog)
    static let funk      = NSSound(named: .funk)
    static let glass     = NSSound(named: .glass)
    static let hero      = NSSound(named: .hero)
    static let morse     = NSSound(named: .morse)
    static let ping      = NSSound(named: .ping)
    static let pop       = NSSound(named: .pop)
    static let purr      = NSSound(named: .purr)
    static let sosumi    = NSSound(named: .sosumi)
    static let submarine = NSSound(named: .submarine)
    static let tink      = NSSound(named: .tink)
}



public extension NSSound.Name {
    static let basso     = NSSound.Name("Basso")
    static let blow      = NSSound.Name("Blow")
    static let bottle    = NSSound.Name("Bottle")
    static let frog      = NSSound.Name("Frog")
    static let funk      = NSSound.Name("Funk")
    static let glass     = NSSound.Name("Glass")
    static let hero      = NSSound.Name("Hero")
    static let morse     = NSSound.Name("Morse")
    static let ping      = NSSound.Name("Ping")
    static let pop       = NSSound.Name("Pop")
    static let purr      = NSSound.Name("Purr")
    static let sosumi    = NSSound.Name("Sosumi")
    static let submarine = NSSound.Name("Submarine")
    static let tink      = NSSound.Name("Tink")
}

Swift 3.2 到 4.1

import AppKit



public extension NSSound {
    
    #if !swift(>=4)
    private convenience init?(named name: Name) {
        self.init(named: name as String)
    }
    #endif
    
    public static let basso     = NSSound(named: .basso)
    public static let blow      = NSSound(named: .blow)
    public static let bottle    = NSSound(named: .bottle)
    public static let frog      = NSSound(named: .frog)
    public static let funk      = NSSound(named: .funk)
    public static let glass     = NSSound(named: .glass)
    public static let hero      = NSSound(named: .hero)
    public static let morse     = NSSound(named: .morse)
    public static let ping      = NSSound(named: .ping)
    public static let pop       = NSSound(named: .pop)
    public static let purr      = NSSound(named: .purr)
    public static let sosumi    = NSSound(named: .sosumi)
    public static let submarine = NSSound(named: .submarine)
    public static let tink      = NSSound(named: .tink)
}



public extension NSSound.Name {
    
    #if !swift(>=4)
    private convenience init(_ rawValue: String) {
        self.init(string: rawValue)
    }
    #endif
    
    public static let basso     = NSSound.Name("Basso")
    public static let blow      = NSSound.Name("Blow")
    public static let bottle    = NSSound.Name("Bottle")
    public static let frog      = NSSound.Name("Frog")
    public static let funk      = NSSound.Name("Funk")
    public static let glass     = NSSound.Name("Glass")
    public static let hero      = NSSound.Name("Hero")
    public static let morse     = NSSound.Name("Morse")
    public static let ping      = NSSound.Name("Ping")
    public static let pop       = NSSound.Name("Pop")
    public static let purr      = NSSound.Name("Purr")
    public static let sosumi    = NSSound.Name("Sosumi")
    public static let submarine = NSSound.Name("Submarine")
    public static let tink      = NSSound.Name("Tink")
}

然后你可以像这样非常简单地播放任何系统声音:

NSSound.glass?.play()

请注意，您还可以让系统播放默认的错误声音，如下所示:

Swift 4.0 及更高版本(通过 5.3 测试)

NSSound.beep()

Swift 1-3 和 Objective-C

NSBeep()

关于Swift- 在 Cocoa 中播放系统默认声音的最简单方法(macOS、OS X)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/38441742/