地図を初期化すると、現在地と目的地の両方が表示されますが (文字列から前方ジオコーディングされています)、それらの間の方向は描画されません。
これが私のコードです:
#import "EventDetailMapViewController.h"
@interface EventDetailMapViewController ()
@property (nonatomic,strong) MKMapItem *destination;
@end
@implementation EventDetailMapViewController
CLPlacemark *thePlacemark;
MKRoute *routeDetails;
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
_mapView.showsUserLocation = YES;
self.navigationController.toolbarHidden = NO;
_mapView.delegate = self;
[self getRoute];
}
- (void)addAnnotation:(CLPlacemark *)placemark {
MKPointAnnotation *point = [[MKPointAnnotation alloc] init];
point.coordinate = CLLocationCoordinate2DMake(placemark.location.coordinate.latitude, placemark.location.coordinate.longitude);
point.title = [placemark.addressDictionary objectForKey:@"Street"];
point.subtitle = [placemark.addressDictionary objectForKey:@"City"];
[self.mapView addAnnotation:point];
}
-(void)showRoute:(MKDirectionsResponse *)response{
for (MKRoute *route in response.routes)
{
[_mapView
addOverlay:route.polyline level:MKOverlayLevelAboveRoads];
for (MKRouteStep *step in route.steps){
NSLog(@"%@",step.instructions);
}
}
}
-(MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation {
// If it's the user location, just return nil.
if ([annotation isKindOfClass:[MKUserLocation class]])
return nil;
// Handle any custom annotations.
if ([annotation isKindOfClass:[MKPointAnnotation class]]) {
// Try to dequeue an existing pin view first.
MKPinAnnotationView *pinView = (MKPinAnnotationView*)[self.mapView dequeueReusableAnnotationViewWithIdentifier:@"CustomPinAnnotationView"];
if (!pinView)
{
// If an existing pin view was not available, create one.
pinView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"CustomPinAnnotationView"];
pinView.canShowCallout = YES;
} else {
pinView.annotation = annotation;
}
return pinView;
}
return nil;
}
-(void)getRoute {
[self getLocationFromString];
MKDirectionsRequest *directionsRequest = [[MKDirectionsRequest alloc] init];
MKPlacemark *placemark = [[MKPlacemark alloc] initWithPlacemark:thePlacemark];
[directionsRequest setSource:[MKMapItem mapItemForCurrentLocation]];
[directionsRequest setDestination:[[MKMapItem alloc] initWithPlacemark:placemark]];
directionsRequest.transportType = MKDirectionsTransportTypeAutomobile;
MKDirections *directions = [[MKDirections alloc] initWithRequest:directionsRequest];
[directions calculateDirectionsWithCompletionHandler:^(MKDirectionsResponse *response, NSError *error) {
if (error) {
NSLog(@"Error %@", error.description);
} else {
routeDetails = response.routes.lastObject;
[self.mapView addOverlay:routeDetails.polyline];
}
}];
}
-(MKOverlayRenderer *)mapView:(MKMapView *)mapView rendererForOverlay:(id<MKOverlay>)overlay {
MKPolylineRenderer * routeLineRenderer = [[MKPolylineRenderer alloc] initWithPolyline:routeDetails.polyline];
routeLineRenderer.strokeColor = [UIColor redColor];
routeLineRenderer.lineWidth = 5;
return routeLineRenderer;
}
- (IBAction)changeMapType:(id)sender {
if (_mapView.mapType == MKMapTypeStandard)
_mapView.mapType = MKMapTypeSatellite;
else
_mapView.mapType = MKMapTypeStandard;
}
-(void)getLocationFromString{
CLGeocoder *geocoder = [[CLGeocoder alloc] init];
[geocoder geocodeAddressString:self.agendaEntry.address completionHandler:^(NSArray *placemarks, NSError *error) {
if (error) {
NSLog(@"%@", error);
} else {
thePlacemark = [placemarks lastObject];
float spanX = 1.00725;
float spanY = 1.00725;
MKCoordinateRegion region;
region.center.latitude = thePlacemark.location.coordinate.latitude;
region.center.longitude = thePlacemark.location.coordinate.longitude;
region.span = MKCoordinateSpanMake(spanX, spanY);
[self.mapView setRegion:region animated:YES];
[self addAnnotation:thePlacemark];
}
}];
}
@end
私はこれに比較的慣れていないので、これのいくつかはおそらく間違っています。私が欲しいのは、(別のビューで) ボタンを押すと、「agendaEntry」がセグエで渡されることです。住所を含む文字列が含まれており、この住所はフォワード ジオコーディングされ、地図にはユーザーの場所からその文字列の住所へのルートが表示されます。
ドライブ/徒歩のルート案内を表示する方法、または複数のルートを表示する方法がわかりません。しかし、まず、それが機能するなら素晴らしいことです。