Connection Controllers
ConnectionController
ChatConnectionController
allows you to connect/disconnect the ChatClient
and observe connection events.
Connection Delegate
Classes that conform to the ChatConnectionControllerDelegate
protocol will receive changes to the connection status (for example online, offline, connecting, ...).
/// The controller observed a change in connection status.
func connectionController(
_ controller: ChatConnectionController,
didUpdateConnectionStatus status: ConnectionStatus
)
Example: Connection Status
Let's build a simple UIView that shows the current connection status.
class ConnectionStatusView: UIView, ChatConnectionControllerDelegate {
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)
}
func connectionController(_ controller: ChatConnectionController, didUpdateConnectionStatus status: ConnectionStatus) {
self.status = status
}
}
class ViewController: UIViewController {
var controller: ChatConnectionController!
var connectionStatusView: ConnectionStatusView = {
var view = ConnectionStatusView()
view.translatesAutoresizingMaskIntoConstraints = false
return view
}()
override func viewDidLoad() {
super.viewDidLoad()
controller = ChatClient.shared.connectionController()
controller.delegate = connectionStatusView
connectionStatusView.status = controller.connectionStatus
navigationItem.titleView = connectionStatusView
}
}