Ios 核心蓝牙发现未发现某些设备

我有3台设备，1台iPhone、1台iPad、1台macbook，并使用核心蓝牙来发现其他设备

iPad（外围设备）

iPhone（中央）

macbook（中央）

当iPad/外围设备在做广告，而其他设备处于中央模式时，我只能在macbook上找到它。iPhone从未看到广告数据。如果我转换角色，同样的事情会再次发生。iOS设备彼此看不见，只有macbook可以看到它们。我快发疯了，不知道还能做什么有什么想法吗？

BluetoothCentral.swift

import Foundation
import CoreBluetooth

class BluetoothCentral: NSObject, ObservableObject {
    var centralManager: CBCentralManager!
    override init(){
        super.init()
        centralManager = CBCentralManager(delegate: self, queue: .main)
    }
    
}

extension BluetoothCentral: CBCentralManagerDelegate {
    func centralManagerDidUpdateState(_ central: CBCentralManager) {
        switch central.state {
          case .unknown:
            print("central.state is .unknown")
          case .resetting:
            print("central.state is .resetting")
          case .unsupported:
            print("central.state is .unsupported")
          case .unauthorized:
            print("central.state is .unauthorized")
          case .poweredOff:
            print("central.state is .poweredOff")
          case .poweredOn:
            print("central.state is .poweredOn")
            centralManager.scanForPeripherals(withServices: nil)

        @unknown default:
            print("Unknown")
        }
    }
    
    func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) {
        print(peripheral)
        print("---------> \(peripheral.name)")
    }
}

import Foundation
import CoreBluetooth

let SERVICE_NAME = "card-iphone"

class BluetoothPeripheral: NSObject, ObservableObject {
    var uuid:String = ""
    var peripheralManager: CBPeripheralManager?
    
    required override init() {
          super.init()
       }

    func start(uuid: String){
        self.uuid = uuid
        peripheralManager = CBPeripheralManager(delegate: self, queue: nil)
    }
}

extension BluetoothPeripheral: CBPeripheralManagerDelegate {
    func peripheralManagerDidUpdateState(_ peripheral: CBPeripheralManager) {
        if peripheral.state == .poweredOn {
            if peripheral.isAdvertising {
                peripheral.stopAdvertising()
            }
            let advertisingData: [String : Any] = [
                CBAdvertisementDataLocalNameKey: SERVICE_NAME
            ]
        
            self.peripheralManager?.startAdvertising(advertisingData)
        } else {
            print("handle other states")
        }
    }
}

蓝牙外围设备。swift

import Foundation
import CoreBluetooth

class BluetoothCentral: NSObject, ObservableObject {
    var centralManager: CBCentralManager!
    override init(){
        super.init()
        centralManager = CBCentralManager(delegate: self, queue: .main)
    }
    
}

extension BluetoothCentral: CBCentralManagerDelegate {
    func centralManagerDidUpdateState(_ central: CBCentralManager) {
        switch central.state {
          case .unknown:
            print("central.state is .unknown")
          case .resetting:
            print("central.state is .resetting")
          case .unsupported:
            print("central.state is .unsupported")
          case .unauthorized:
            print("central.state is .unauthorized")
          case .poweredOff:
            print("central.state is .poweredOff")
          case .poweredOn:
            print("central.state is .poweredOn")
            centralManager.scanForPeripherals(withServices: nil)

        @unknown default:
            print("Unknown")
        }
    }
    
    func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) {
        print(peripheral)
        print("---------> \(peripheral.name)")
    }
}

import Foundation
import CoreBluetooth

let SERVICE_NAME = "card-iphone"

class BluetoothPeripheral: NSObject, ObservableObject {
    var uuid:String = ""
    var peripheralManager: CBPeripheralManager?
    
    required override init() {
          super.init()
       }

    func start(uuid: String){
        self.uuid = uuid
        peripheralManager = CBPeripheralManager(delegate: self, queue: nil)
    }
}

extension BluetoothPeripheral: CBPeripheralManagerDelegate {
    func peripheralManagerDidUpdateState(_ peripheral: CBPeripheralManager) {
        if peripheral.state == .poweredOn {
            if peripheral.isAdvertising {
                peripheral.stopAdvertising()
            }
            let advertisingData: [String : Any] = [
                CBAdvertisementDataLocalNameKey: SERVICE_NAME
            ]
        
            self.peripheralManager?.startAdvertising(advertisingData)
        } else {
            print("handle other states")
        }
    }
}

---

您实际上还没有将外围设备添加到CBPeripal Manager中。我认为这不重要。macbook/central能够使用相同的centralManager代码发现广告数据我认为这很重要，这就是为什么我这么说的原因。同样的事情发生在苹果的示例代码中，该代码在manager中添加了一个外围设备。我将您的代码添加到外围设备管理器中，主要是为了扫描特定的服务；如果我没有这样做，我的中央处理器就会看到周围的众多外围设备，很难确定它为什么会发现给定的外围设备。你试过LightBlue应用程序而不是你的中央代码吗？