UDPBroadcastConnection

Framework to send UDP broadcast messages and listen to responses using a Dispatch dispatch source.

Caveat

I think that modern apps should no longer use this package. Please look into Apple's NWConnection instead.

Requirements

iOS 11+, Swift 5.0

Usage

An example app is included demonstrating UDPBroadcastConnection's functionality. The example probably won't work for you out of the box since you need someone to listen and respond on the correct UDP port on your network.

Getting Started

Create a UDPBroadcastConnection on port 35602 with a closure that handles the response:

broadcastConnection = try UDPBroadcastConnection(
  port: 35602,
  handler: { (response: (ipAddress: String, port: Int, response: [UInt8])) -> Void in
    print("Received from \(response.ipAddress):\(response.port):\n\n\(response.response)")
	},
  errorHandler: { (error) in 
    print(error)
  })

Note: Make sure to keep a strong reference to broadcastConnection (e.g. by storing it in a property) to be able to receive responses.

Send a message via broadcast:

try broadcastConnection.sendBroadcast("This is a test!")

Try it out

You can test the broadcast and the handler for receiving messages by running the included receive_and_reply.py script (tested with Python 2.7.10) on your Mac. If you send a broadcast with the example app, you should see the message that was sent in the terminal and see the script's answer in the example app.

Installation

Carthage

Add the following line to your Cartfile.

github "gunterhager/UDPBroadcastConnection"

Then run carthage update.

Manually

Just drag and drop the .swift files in the UDPBroadcastConnection folder into your project.

License

UDPBroadcastConnection is available under the MIT license. See the LICENSE file for details.

Made with ❤ at all about apps.