I am using Apples Network framework to build a TCP connection to a server. It locks like this:
testConnection.stateUpdateHandler = ({ state in
				print("TCP state change to: \(state)")
				switch state {
				case .setup:
						break
				case .waiting(let error):
						print("Waiting Error \(error)")
						testConnection.cancel()
						break
				case .preparing:
						break
				case .ready:
						beginCommunication()
						break
				case .failed(let error):
						print("\(error)")
						break
				case .cancelled:
						break
				default:
						break
				}
		})
The serverAddress and serverPort is entered by the user. I want to test the connection. Now my problem is, that if the user is entering an invalid address / port combination (the service is not offered by the server). I stuck in the preparing state for quite a long time. After that I get to the waiting stage (with error message POSIXErrorCode: Operation timed out).
Is there any way to set the timeout for this first connection process ?
Thanks for your ideas
PrinzAkim
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I made up my own iAP2-BT-device, which is perfectly running by use the BT-list and the External Accessory Framework.
Now, following the instruction for MFI developers, I would like to show the showBluetoothAccessoryPicker using the following swift code:
EAAccessoryManager.shared().showBluetoothAccessoryPicker(withNameFilter: nil) { (error) in
if let error = error {
switch error {
case EABluetoothAccessoryPickerError.alreadyConnected:
break
default:
break
}
}
}
Wherever I put this snipple in my app code the picker is never shown (device unpaired by "forget device") and I always get the console message: A constraint factory method was passed a nil layout anchor. This is not allowed, and may cause confusing exceptions. Break on BOOL _NSLayoutConstraintToNilAnchor(void) to debug. This will be logged only once. This may break in the future.
I have no idea what to do to get this picker shown ...
Thanks for your help