相关疑难解决方法(0)

我想在IOS8中使用CoreBluetooth.framework来实现数据传输,我确实在以下方法中发现了外设并尝试连接外设.

- (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI
{
    NSLog(@"Discover name : %@", peripheral.name);
    [self.centralManager connectPeripheral:peripheral options:nil];
}

但它没有调用委托方法didFailToConnectPeripheral或didConnectPeripheral ,我对它有什么问题,是代码错误还是IOS8需要一些额外的东西？怎么处理,谢谢!

这是我在github中的代码,我写了一个程序作为服务器,另一个是中央.

首先要做的事:运行OSX 10.10.4,iOS 4,Xcode 6.3.2,iPhone 6,Swift

简短的故事:我在这里有一个蓝牙LE设备,我希望在特征值改变时收到通知,例如通过用户输入.尝试订阅它不会成功,而是会产生错误Error Domain=CBATTErrorDomain Code=10 "The attribute could not be found."

说来话长:所以,我有我只要我开始扫描外设BluetoothManager类$CBCentralManager.state是.PoweredOn.这很容易,我甚至是一个好公民,专门为有我想要的服务的人扫描

centralManager.scanForPeripheralsWithServices([ServiceUUID], options: nil)

希望这会成功,我实现了以下委托方法:

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

    if *this is a known device* {
        connectToPeripheral(peripheral)
        return
    }

    [...] // various stuff to make something a known device, this works
}

所以继续前进,我们得到:

func connectToPeripheral(peripheral: CBPeripheral) {
    println("connecting to \(peripheral.identifier)")

    [...] // saving the peripheral in an array along the way so …

我正在尝试从带有 CoreBluetooth 的 iPad 连接到 MacBook Pro。

这是我的代表团CBCentralManagerDelegate：

extension MasterViewController: CBCentralManagerDelegate {
    func centralManagerDidUpdateState(_ central: CBCentralManager) {
        if central.state == .poweredOn {
            print("Scanning for peripherals")
            central.scanForPeripherals(withServices: nil, options: nil)
            Timer.scheduledTimer(timeInterval: 3, target: self, selector: #selector(self.stopScan), userInfo: nil, repeats: true)
        }
    }

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

        central.connect(peripheral, options: nil)

    }

    func centralManager(_ central: CBCentralManager, didConnect peripheral: CBPeripheral) {
        print("Did connect to ", peripheral)

        peripheral.delegate …