constructor() {
        this.deviceInformation = new DeviceInfo(
            device.model,
            device.deviceType,
            device.os,
            device.osVersion,
            device.sdkVersion,
            device.language,
            device.manufacturer,
            device.uuid
        );

        this.screenInformation = new ScreenInfo(
            screen.mainScreen.heightDIPs,
            screen.mainScreen.heightPixels,
            screen.mainScreen.scale,
            screen.mainScreen.widthDIPs,
            screen.mainScreen.widthPixels
        );

        let connectionType = connectivity.getConnectionType();
        switch (connectionType) {
            case connectivity.connectionType.none:
                this.connectionType = "None";
                break;
            case connectivity.connectionType.wifi:
                this.connectionType = "Wi-Fi";
                break;
            case connectivity.connectionType.mobile:
                this.connectionType = "Mobile";
                break;
            default:
                break;
        }
    }

 constructor(private zone: NgZone) {
     // >> connectivity-gettype-code
     let connectionType = connectivity.getConnectionType();
     switch (connectionType) {
         case connectivity.connectionType.none:
             this.connectionType = "None";
             break;
         case connectivity.connectionType.wifi:
             this.connectionType = "Wi-Fi";
             break;
         case connectivity.connectionType.mobile:
             this.connectionType = "Mobile";
             break;
         default:
             break;
     }
     // << connectivity-gettype-code
 }

 /**
  * Get connection type.
  */
 public getConnectionType(): ConnectionType {
   return getConnectionType();
 }

	constructor(private router: RouterExtensions) {
		this.currentConnectionType = new BehaviorSubject<ConnectionType>(getConnectionType());
	}