Question

我尝试使用连接到蓝牙编写应用程序并发送一些数据并获得响应，但在尝试设置时出错：setNotifyValue 我用

开始搜索

self.centralManager?.scanForPeripherals(withServices: [serviceUUID], options: [CBCentralManagerScanOptionAllowDuplicatesKey : true])

连接到外围设备后

public func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) {

    self.discoveredPeripheral = peripheral
    self.discoveredPeripheral!.delegate = self
    self.centralManager?.stopScan()
    self.centralManager?.connect(self.discoveredPeripheral!, options: nil)

}

连接后我发现服务

public func centralManager(_ central: CBCentralManager, didConnect peripheral: CBPeripheral) {
    self.discoveredPeripheral!.discoverServices([serviceUUID])
}

发现charachteristic后

public func peripheral(_ peripheral: CBPeripheral, didDiscoverServices error: Error?) {
    if let services = peripheral.services{
        for service in services {
            if service.uuid.isEqual(serviceUUID) {
                self.discoveredPeripheral!.discoverCharacteristics(nil, for: service)

            }
        }
    } else{
        print("errors")
    }
}

我保存特征后尝试将setNotifyValue设为true

public func peripheral(_ peripheral: CBPeripheral, didDiscoverCharacteristicsFor service: CBService, error: Error?) {
    if let charachteristics = service.characteristics {
        for charactiristic in charachteristics {
            if charactiristic.uuid.isEqual(readCharacteristicUUID) {
                self.readCharacteristic = charactiristic
            } else if charactiristic.uuid.isEqual(writeCharacteristicUUID) {
                self.writeCharacteristic = charactiristic
                peripheral.setNotifyValue(true, for: charactiristic)
            }

        }
    }
}

但是我得到了错误：

public func peripheral(_ peripheral: CBPeripheral, didUpdateNotificationStateFor characteristic: CBCharacteristic, error: Error?) {
    print("didUpdateNotification")
    if error != nil {
        print((error!.localizedDescription))

    }
}

不支持请求。

在Android中

可以连接响应

有没有想法，有什么问题以及如何解决这个问题？

我尝试重启手机：CBCentralManager setNotifyValue: not working 但它没有帮助

CoreBlutooth setNotifyValue错误：＆＃34;不支持请求。＆＃34;

0 个答案: