從OS X上的iTunes中獲取當前播放音頻的音頻元數據

Question

我正在OS X上的Swift中編寫應用程序。有沒有辦法在iTunes中獲取當前播放音頻？我想獲得詳細信息，如標題，藝術家等

什麼我發現已經：

1. Here is an Objective C example, but not all those methods are available with Swift.

2. This example uses AppleScript, which I might have to do. But I'd rather use Swift if possible.

Answer 1

這裏有一個簡單的例子如何從當前曲目獲取屬性：

測試（El Capitan v10.11.5，iTunes 12.4和Xcode 7.3）。

import Cocoa 
import ScriptingBridge 
@objc protocol iTunesApplication { 
    optional func currentTrack()-> AnyObject 
    optional var properties: NSDictionary {get} 
    //if you need another object or method from the iTunes.h, you must add it here 
} 

@NSApplicationMain 
class AppDelegate: NSObject, NSApplicationDelegate { 

    func applicationDidFinishLaunching(aNotification: NSNotification) { 
     let iTunesApp: AnyObject = SBApplication(bundleIdentifier: "com.apple.iTunes")! 
     let trackDict = iTunesApp.currentTrack!().properties as Dictionary 
     if (trackDict["name"] != nil) {// if nil then no current track 
      print(trackDict["name"]!) // print the title 
      print(trackDict["artist"]!) 
      print(trackDict["album"]!) 
      print(trackDict["playedCount"]!) 
      // print(trackDict) // print the dictionary 
     } 
    } 
}