Question

我正在尝试使用BLE通过一个简单的应用程序自动连接到我的AirPods。我得到设备的名称和状态为“连接”，但由于某种原因我无法连接到它。函数'didConnect peripheral'永远不会被触发。

我尝试了教程和其他帖子中的所有不同方法，尝试将外围数据存储在数组中以保留引用，但似乎没有任何工作。

是否有任何步骤我可以在'didDiscover'和'didConnect'之间获得一些额外的信息？

在XCode 9.2中工作，在iPhone上使用Swift 4和iOS 11.2。

这是我的代码：

let deviceName = "AirPods de Roger"
var isConnected = false

var manager: CBCentralManager!
var peripheralBLE: CBPeripheral?

override func viewDidLoad() {
    super.viewDidLoad()
    manager = CBCentralManager(delegate: self, queue: nil)
}

func centralManagerDidUpdateState(_ central: CBCentralManager) {
    switch manager.state {
    case.poweredOff:
        print("BLE service is powered off")
    case.poweredOn:
        print("BLE service is powered on and scanning")
        manager.scanForPeripherals(withServices: nil, options: nil)
    default:
        print("BLE service in another state")
    }
}

func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) {
    if peripheral.name == deviceName && isConnected == false {
        self.manager.stopScan()
        self.peripheralBLE = peripheral
        self.peripheralBLE?.delegate = self
        manager.connect(peripheral, options: nil)
        isConnected = true
        print("\(peripheral.name) pre-connected")
    }
}

func centralManager(_ central: CBCentralManager, didConnect peripheral: CBPeripheral) {
    lblConnected.isHidden = false
    print("AirPods Connected")
    peripheral.discoverServices(nil)
}

Answer 1

这是我当前的实现方式：

import UIKit
import CoreBluetooth

var manager: CBCentralManager!
var peripheralBLE: CBPeripheral!

class ViewController: UIViewController, CBCentralManagerDelegate, CBPeripheralDelegate {
let deviceName = "AirPods de Iván"
var isConnected = false


@IBOutlet weak var Label: UILabel!
@IBAction func Click(_ sender: UIButton) {
    self.connect()
}

override func viewDidLoad() {
    super.viewDidLoad()
    manager = CBCentralManager(delegate: self, queue: nil)
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

func connect()  {
    manager.connect(peripheralBLE, options: nil)
    print("connect")
    self.updateLabelStatus()
}

func disconnect() {
    manager.cancelPeripheralConnection(peripheralBLE!)
    print("disconnect")
    self.updateLabelStatus()
}

func updateLabelStatus() {
    switch peripheralBLE.state {
    case.connected:
        Label.text = "connected"
    case.disconnected:
        Label.text = "disconnected"
    case.connecting:
        Label.text = "connecting"
    case.disconnecting:
        Label.text = "disconnecting"
    default:
        Label.text = "label"
    }
}

func centralManagerDidUpdateState(_ central: CBCentralManager) {
    switch manager.state {
    case.poweredOff:
        print("BLE service is powered off")
    case.poweredOn:
        print("BLE service is powered on and scanning")
        manager.scanForPeripherals(withServices: nil, options: nil)
    default:
        print("BLE service in another state")
    }
}

func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) {
    if peripheral.name == deviceName && isConnected == false {
        print("found AirPods \(peripheral)")
        peripheralBLE = peripheral
        peripheralBLE!.delegate = self
        manager.stopScan()
        self.updateLabelStatus()
    }
}

func centralManager(_ central: CBCentralManager, didConnect peripheral: CBPeripheral) {
    print("AirPods Connected")
    peripheral.discoverServices(nil)
    self.updateLabelStatus()
}

func centralManager(_ central: CBCentralManager,
                    didFailToConnect peripheral: CBPeripheral,
                    error: Error?) {
    print("AirPods Connect error")
    print(error)
    self.updateLabelStatus()
}
}

我正在找到设备，但是当我尝试连接时，什么也没发生 BLE service is powered on and scanning found AirPods <CBPeripheral: 0x1c4103f00, identifier = 0E6FCF72-B86E-FB10-DD62-4A575BAD0ECC, name = AirPods de Iván, state = disconnected> connect

我可以使用此代码连接其他设备
我可以使用类似的代码将airpods与我的Mac相连，而不会出现问题
我无法将airpods与我的iPhone连接：S

在这里，我几乎可以肯定代码是正确的

Answer 2

由于AirPods使用kCBAdvDataIsConnectable = 0做广告，因此不应将它们通过BLE连接。

无法通过BLE连接到AirPods

2 个答案: