platform_device_id/macos/Classes/PlatformDeviceIdPlugin.swift

import Cocoa
import FlutterMacOS

public class PlatformDeviceIdPlugin: NSObject, FlutterPlugin {
  public static func register(with registrar: FlutterPluginRegistrar) {
    let channel = FlutterMethodChannel(name: "com.di1shuai.flutter/platform_device_id", binaryMessenger: registrar.messenger)
    let instance = PlatformDeviceIdPlugin()
    registrar.addMethodCallDelegate(instance, channel: channel)
  }

  /// 执行脚本命令
  ///
  /// - Parameters:
  ///   - command: command content
  ///   - needAuthorize: need sudo ?
  /// - Returns: result string
  public func runCommand(_ command: String, needAuthorize: Bool) ->  String {
      let scriptWithAuthorization = """
      do shell script "\(command)" with administrator privileges
      """
      
      let scriptWithoutAuthorization = """
      do shell script "\(command)"
      """
      
      let script = needAuthorize ? scriptWithAuthorization : scriptWithoutAuthorization
      let appleScript = NSAppleScript(source: script)
      
      var error: NSDictionary? = nil
      let result = appleScript!.executeAndReturnError(&error)
      if let error = error {
          print("Error ->  \n\(command)\n:")
          print(error)
          // return (false, nil)
          return ""
      }
      
      // return (true, result.stringValue)
      return result.stringValue!
  }

  public func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
    switch call.method {
    case "getPlatformVersion":
      result("macOS " + ProcessInfo.processInfo.operatingSystemVersionString)
    case "getDeviceId":
      let command = String(#"ioreg -l | grep IOPlatformUUID | awk 'NR==1{print $4}' | sed 's/\"//g'"#)
      let deviceId = runCommand(command,needAuthorize: false);
      result(deviceId)
    default:
      result(FlutterMethodNotImplemented)
    }
  }
}