addingConnections(from:)

Declaration

static func addingConnections(from pairedDevices: WAPublisherListener.Devices) -> WAPublisherListener.Action

Parameters

• pairedDevices:

  The remote devices from which to accept connections. The NetworkListener isn’t activated if the system doesn’t specify any devices.

Return Value

A new WAPublisherListener.Action that configures the listener to accept network connections from specified paired devices.

Discussion

Set up your app’s first connection to a device using Wi-Fi Aware service discovery. Apps can do so by defining a single “control” service used for initial discovery and connection, and creating a NetworkListener for that service via connecting(to:from:datapath:). Subsequent connections may then use a .addingConnections NetworkListener to quickly connect without going through the service discovery process again.

The framework limits the listener to accepting connections from the paired devices specified.

// Create a listener to add new connections.
let listener = try NetworkListener(for:
            .wifiAware(.addingConnections(from: .matching(devices))),
        using: .parameters({
             TCP()
}))

// Get the port number once the listener is in the ready state.
guard let port = listener.port { return }

// Send the port number to the client device or devices over the control connection.