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Connection Controllers

ConnectionController#

ChatConnectionController allows you to connect/disconnect the ChatClient and observe connection events.

Publishers in ChatConnectionController#

The connectionStatusPublisher will emit a new value every time the connection status changes.

connectionController.connectionStatusPublisher            .sink(receiveValue: {                 // Use the connection status here            })            .store(in: &cancellables)

Example: Connection Status#

Let's build a simple UIView that shows the current connection status.

class ConnectionStatusView: UIView {    var status = ConnectionStatus.connecting {        didSet {            labelView.text = "Connection status: \(status)"        }    }    var labelView: UILabel = {        var label = UILabel()        label.translatesAutoresizingMaskIntoConstraints = false        return label    }()    override public init(frame: CGRect) {        super.init(frame: frame)        addSubview(labelView)        NSLayoutConstraint.activate([            labelView.topAnchor.constraint(equalTo: topAnchor),            labelView.bottomAnchor.constraint(equalTo: bottomAnchor),            labelView.leadingAnchor.constraint(equalTo: leadingAnchor),            labelView.trailingAnchor.constraint(equalTo: trailingAnchor)        ])    }    required init?(coder: NSCoder) {        super.init(coder: coder)    }}
class ViewController: UIViewController {    var controller: ChatConnectionController!    var cancellables: Set<AnyCancellable> = []        var connectionStatusView: ConnectionStatusView = {        var view = ConnectionStatusView()        view.translatesAutoresizingMaskIntoConstraints = false        return view    }()        override func viewDidLoad() {        super.viewDidLoad()        controller = ChatClient.shared.connectionController()                controller.connectionStatusPublisher.receive(on: RunLoop.main).sink { [weak self] connectionStatus in            self?.connectionStatusView.status = connectionStatus        }.store(in: &cancellables)
        navigationItem.titleView = connectionStatusView    }}

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