Network Communication

NetworkConnectivityCheck

Use NetworkConnectivityCheck to easily register an observer to the API and receive information about the current network status of your device.

Usage

You have two options when working with the NetworkConnectivityCheck. You can:

1. Register a class as an observer at the ConnectivityReceiver to receive consistent updates about the status of your device’s reachability. To use the ConnectivityReceiver you have to implement the ConnectivityObserver protocol in your class and implement the given functions.
2. Check the reachability manually with the ConnectivityUtils class.

// register observer to start the Monitoring
ConnectivityReceiver.registerObserver(self)

// MARK: Protocol Functions
func connectionEstablished() {
    logger.debug("Connection established")
    // do something useful
}

func connectionChanged(_ previousReachabilityType: ReachabilityType, reachabilityType: ReachabilityType) {
    logger.debug("connection changed")
    // do something useful
}

func connectionLost() {
    logger.debug("Connection lost")
    // do something useful
}

You should always unregister your observers to prevent memory leaks:

// unregister observer, if observer list is empty the monitoring stops
ConnectivityReceiver.unregisterObserver(self)

You can check the actual network status of your device manually with the help of the ConnectivityUtils class:

// This example checks the status manually inside IBActions

@IBOutlet weak var manuallyConnectivityLabel: UILabel!

@IBAction func checkMobile(_ sender: UIButton) {
    if ConnectivityUtils.isMobileConnected() {
        manuallyConnectivityLabel.text = "Mobile connected!"
    } else {
        manuallyConnectivityLabel.text = "Mobile not connected!"
    }
}

@IBAction func checkWiFi(_ sender: UIButton) {
    if ConnectivityUtils.isWiFiConnected() {
        manuallyConnectivityLabel.text = "WiFi connected!"
    } else {
        manuallyConnectivityLabel.text = "WiFi not connected!"
    }
}

@IBAction func checkOnline(_ sender: UIButton) {
    if ConnectivityUtils.isConnected() {
        manuallyConnectivityLabel.text = "Internet connected!"
    } else {
        manuallyConnectivityLabel.text = "Internet not connected!"
    }

    // or ask if a specific `ReachabilityType`is connected.
    if ConnectivityUtils.isConnected(ReachabilityType.wifi) {
        // Connected via WiFi
    }
}

NetworkConnectivityCheck component Logger ID

This component uses the following name prefix for logging: ‘SAP.Foundation.NetworkConnectivityCheck’