Cancel a routing query
Cancel a routing query before it completes.


#import "CancelRoutingQuery.h"
#import "SamplesMessage.h"
@import Wrld;
@interface CancelRoutingQuery() <WRLDMapViewDelegate>
@property (nonatomic) WRLDMapView *mapView;
@end
@implementation CancelRoutingQuery
{
}
- (void)viewDidLoad
{
[super viewDidLoad];
_mapView = [[WRLDMapView alloc] initWithFrame:self.view.bounds];
_mapView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
_mapView.delegate = self;
// set the center of the map and the zoom level
[_mapView setCenterCoordinate:CLLocationCoordinate2DMake(56.461062, -2.97977)
zoomLevel:17
animated:NO];
[self.view addSubview:_mapView];
WRLDRoutingService* wrldRoutingService = [_mapView createRoutingService];
WRLDRoutingQueryOptions* wrldRoutingQueryOptions = [[WRLDRoutingQueryOptions alloc] init];
[wrldRoutingQueryOptions addWaypoint:CLLocationCoordinate2DMake(56.460918, -2.981560)];
[wrldRoutingQueryOptions addWaypoint:CLLocationCoordinate2DMake(56.461207, -2.977993)];
WRLDRoutingQuery* routingQuery = [wrldRoutingService findRoutes:(wrldRoutingQueryOptions)];
[routingQuery cancel];
[SamplesMessage showWithMessage:@"Query cancelled." andDuration:[[NSNumber alloc] initWithInt: 6]];
}
- (void)mapView:(WRLDMapView *)mapView routingQueryDidComplete:(int)routingQueryId routingQueryResponse:(WRLDRoutingQueryResponse *)routingQueryResponse
{
//Query is cancelled and never completes
[SamplesMessage showWithMessage:@"This Message should not be shown." andDuration:[[NSNumber alloc] initWithInt: 6]];
}
@end