iOS 14.4.2的7 Plus和iOS 12的6上BLE工作正常，但是在XR（14.4.2）和11上，在centralManager.connect(peripheral, options: nil)之后连接会卡住（无限连接）。
其他智能手机无法检测到外围设备，因此该外围设备处于连接模式。起初我以为问题出在外围设备本身的无线电模块（NRF52），但是调试板也出现了该问题。重新启动智能手机没有帮助。
有趣的是，在装有M1芯片的MacBook上，应用程序运行良好。
代码的一部分：
// Peripheral model
init(withPeripheral peripheral: CBPeripheral, advertisementData advertisementDictionary: [String : Any], andRSSI currentRSSI: NSNumber, using manager: CBCentralManager) {
centralManager = manager
basePeripheral = peripheral
RSSI = currentRSSI
super.init()
advertisedName = parseAdvertisementData(advertisementDictionary)
basePeripheral.delegate = self
}
public func connect() {
centralManager.delegate = self
centralManager.connect(basePeripheral, options: nil)
print("Connecting to \(advertisedName ?? "device")...")
// logs stops here
}
public func disconnect() {
centralManager.cancelPeripheralConnection(basePeripheral)
print("Cancelling connection with \(advertisedName ?? "device")...")
// triggers on VC dismiss
}
func centralManagerDidUpdateState(_ central: CBCentralManager) {
if central.state != .poweredOn {
print("Central Manager stated changed to \(central.state)")
}
}
func centralManager(_ central: CBCentralManager, didConnect peripheral: CBPeripheral) {
if peripheral == basePeripheral {
print("Connected to \(advertisedName ?? "device")")
delegate?.peripheralDidConnect()
discoverPrimaryServices()
}
}
func centralManager(_ central: CBCentralManager, didDisconnectPeripheral peripheral: CBPeripheral, error: Error?) {
if peripheral == basePeripheral {
print("Disconnected from \(advertisedName ?? "device")")
delegate?.peripheralDidDisconnect()
}
}