Swift Here API Examples - objective-c

Question

I'm incorporating the HERE SDK into my app. Aside from one simple map setup, all the examples on the HERE website are shown in objective-C, and I'm trying my best to translate them into Swift but it's not working 100% yet. I'm trying to put a route between 2 coordinates onto a map view as per their routing example shown at:
https://developer.here.com/mobile-sdks/documentation/ios/topics/routing.html
The interesting thing is that if I just call for the map everything works, but if I add the routing part I get the following error:
NMAKit FATAL: License Key, App ID, or App Code not set. error on launch which is odd because the credentials are fine! So I think the bug is entirely in my Swift translation.
The instructions in objective-C are very clear:
1. Adopt NMARouteManagerDelegate protocol and create a NMARouteManager:
#interface ClassName : NSObject <NMARouteManagerDelegate>
{
// Setup your class
}
(void)setup
{
Create a NMARouteManager.**
NMARouteManager* routeManager = [NMARouteManager sharedRouteManager];
// Setup delegate
[routeManager setDelegate:self];
}
2. Create an NSMutableArray and add two NMAGeoCoordinates stops:
NSMutableArray* stops = [[NSMutableArray alloc] initWithCapacity:4];
NMAGeoCoordinates* geoCoord1 = [[NMAGeoCoordinates alloc]
initWithLatitude:49.1966286 longitude:-123.0053635];
NMAGeoCoordinates* geoCoord2 = [[NMAGeoCoordinates alloc]
initWithLatitude:49.1947289 longitude:-123.1762924];
[stops addObject:geoCoord1];
[stops addObject:geoCoord2];
3. Create an NMARoutingMode and set its NMATransportMode, NMARoutingType and NMARoutingOption values:
NMARoutingMode* routingMode = [[NMARoutingMode alloc]
initWithRoutingType:NMARoutingTypeFastest
transportMode:NMATransportModeCar
routingOptions:0];
4. Calculate the route:
[routeManager calculateRouteWithStops:stops routingMode:routingMode];
5. To receive the results of the route calculation, implement the NMARouteManagerDelegate protocol method
routeManager:didCalculateRoutes:withError:violatedOptions: in your delegate class.
Note: Routes are returned even if you receive the NMARouteManagerErrorViolatesOptions error. It is up to you to handle these route results that violate routing options.
-(void) routeManager: (NMARouteManager*)routeManager
didCalculateRoutes:(NSArray*)routes
withError:(NMARouteManagerError)error
violatedOptions:(NSArray*)violatedOptions
{
// If the route was calculated successfully
if (!error && routes && routes.count > 0)
{
NMARoute* route = [routes objectAtIndex:0];
// Render the route on the map
mapRoute = [NMAMapRoute mapRouteWithRoute:route];
[mapView addMapObject:mapRoute];
}
else if (error)
{
// Display a message indicating route calculation failure
}
}
And this is what I'm trying to do in Swift:
import UIKit
//I changed the NMARouteManagerDelegate to my original class here
//and couldnt allow NSObject in the class delegation because it conflicts with UIViewController
class TestViewController: UIViewController, NMARouteManagerDelegate {
var mapCircle:NMAMapCircle?
#IBOutlet weak var mapView: NMAMapView!
#IBAction func get_route_action(sender: AnyObject) {
doRouting()
}
let routeManager = NMARouteManager.sharedRouteManager()
func doRouting() {
let geoCoord1 = NMAGeoCoordinates(latitude:41.350949, longitude:-74.182097)
let geoCoord2 = NMAGeoCoordinates(latitude:41.3437502, longitude:-74.1624284)
let stops = [geoCoord1, geoCoord2]
routeManager.calculateRouteWithStops(stops)
}
func routeManager(routeManager: NMARouteManager!, didCalculateRoutes routes: [AnyObject]!, withError error: NMARouteManagerError, violatedOptions: [AnyObject]!) {
print(routes)
print(error)
print(violatedOptions)
guard error == NMARouteManagerError.None else {
print("Route calculation error: \(error)")
return
}
guard let routes = routes, route = routes[0] as? NMARoute else {
print("Route calculation error: no routes")
return
}
let mapRoute = NMAMapRoute(route: route)
// Render the route on the map
mapView.addMapObject(mapRoute)
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
//mapView.useHighResolutionMap = true
var coordinates: NMAGeoCoordinates
coordinates = NMAGeoCoordinates(latitude: 41.350949, longitude: -74.182097)
mapView.zoomLevel = 13.2
mapView.setGeoCenter(coordinates, withAnimation: NMAMapAnimation.Linear)
mapView.copyrightLogoPosition = NMALayoutPosition.BottomCenter
addMapCircle()
}
func addMapCircle() {
if mapCircle == nil {
let coordinates: NMAGeoCoordinates =
NMAGeoCoordinates(latitude: 41.350949, longitude: -74.182097)
mapCircle = NMAMapCircle(geoCoordinates: coordinates, radius: 50)
mapView.addMapObject(mapCircle)
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}

Answer 1

I tried your code, and worked basically for me quite fine.
But I additionally added the credentials in AppDelegate.swift:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
NMAApplicationContext.setAppId(YourAppID, appCode: YourToken, licenseKey: YourKey);
return true;
}
This is critical, since if it's missing, it's throwing exactly the error you get.