ios - 如何在 OSX 应用程序中使用核心蓝牙？

Question

我尝试在我目前正在开发的 OS X 应用程序中使用核心蓝牙框架，这实际上会将您的 Mac 连接到您的 iphone 以通过蓝牙 LE 执行不同的操作。

问题是，当我简单地初始化 CBCentralManager 和它的委托(delegate)方法时，我得到了一个奇怪的错误:

    Undefined symbols for architecture x86_64:
  "_CBAdvertisementDataLocalNameKey", referenced from:
      __TFC5test311AppDelegate14centralManagerfS0_FTGSQCSo16CBCentralManager_21didDiscoverPeripheralGSQCSo12CBPeripheral_17advertisementDataGSQGVSs10DictionaryCSo8NSObjectPSs9AnyObject___4RSSIGSQCSo8NSNumber__T_ in AppDelegate.o
  "_OBJC_CLASS_$_CBCentralManager", referenced from:
      __TMaCSo16CBCentralManager in AppDelegate.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

下面是我的代码:

import Cocoa
import CoreBluetooth

@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate, CBCentralManagerDelegate {

    @IBOutlet weak var window: NSWindow!
    var centralManager: CBCentralManager!

    func centralManager(central: CBCentralManager!, didDiscoverPeripheral peripheral: CBPeripheral!, advertisementData: [NSObject : AnyObject]!, RSSI: NSNumber!) {

        var localName: String = advertisementData[CBAdvertisementDataLocalNameKey] as String

        if (countElements(localName) > 0) {
            println("Found Mac: \(localName)")
            self.centralManager.stopScan()
        } else {
            println("Not Found")
        }
    }
    func centralManager(central: CBCentralManager!, didConnectPeripheral peripheral: CBPeripheral!) {
        println("1")
    }

    func centralManager(central: CBCentralManager!, didDisconnectPeripheral peripheral: CBPeripheral!, error: NSError!) {
        println("2")
    }

    func centralManagerDidUpdateState(central: CBCentralManager!) {
        switch (central.state) {
        case .PoweredOff:
            println("Powered Off")
        case .PoweredOn:
            println("Powered On")
            self.centralManager.scanForPeripheralsWithServices(nil, options: nil)
        case .Unauthorized:
            println("Unauthorized")
        case .Unknown:
            println("Unknown")
        case .Unsupported:
            println("Unsupported")
        default:
            println("Default")
        }
    }

    func applicationDidFinishLaunching(aNotification: NSNotification) {
        self.centralManager = CBCentralManager(delegate: nil, queue: nil)
        // Insert code here to initialize your application
    }

    func applicationWillTerminate(aNotification: NSNotification) {
        // Insert code here to tear down your application
    }
}

我不确定为什么会出现该错误，或​​者我做错了什么

Answer 1

我在 MacOS 10.13 上遇到了同样的错误，

• 我首先将Privacy - Bluetooth Peripheral Usage Description 添加到 info.plist。
• 接下来我发现在项目设置 -> 目标(你的应用程序) -> 功能 -> 应用程序沙盒 -> 蓝牙中必须检查。

Check Bluetooth