Question

我有一个可以正常工作的BLE应用程序，甚至还存档了它的多个工作版本。突然，连接设备后我没有收到回调。当用户点击已扫描设备的ListView中的条目时，我连接到了骨膜周围。另一个奇怪的事情是，在分析问题时，我从发出连接呼叫的情况开始，先收到回叫，然后立即断开连接回叫。因此，我进行了一个项目的清理和重建。然后，connect回调不再完全被调用。我回到该应用程序的已知工作版本，它们执行相同的操作（不会发生连接回调）。今天，我被迫在iPad和Mac上更新OS和Xcode的更新，但同样的事情发生了。任何帮助将不胜感激。

class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate, CBCentralManagerDelegate, CBPeripheralDelegate, UITextFieldDelegate
{

var btManager:    CBCentralManager!
var btDeviceList: [CBPeripheral] = []
var btDevice:     CBPeripheral!


func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber)
{
    print("Found BLE device: " + peripheral.name!);

    // Add the scanner only if its not there already
    var i = 0
    var foundIt = false

    for tempDevice in btDeviceList
    {
        if tempDevice.identifier == peripheral.identifier
        {
            foundIt = true
            break
        }

        i = i + 1
    }

    if (!foundIt)
    {
        btDeviceList.append(peripheral)

        btListView.reloadData()
    }
}

// Called when connected to a BLE device
func centralManager(_ central: CBCentralManager, didConnect peripheral: CBPeripheral)
{
    print("Connected to: " + peripheral.name!)

    // Discover the services for the device
    peripheral.discoverServices(nil)
}

// Called when a row in the table list view is tapped
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
{
    btManager.stopScan()

    btDevice = btDeviceList[indexPath.row]

    btDevice.delegate = self

    print("Connecting to: " + btDevice.name!)
    btManager.connect(btDevice, options: nil)
}

} // View Controller

iOS蓝牙连接回调不再有效

0 个答案: