有没有办法使用内置的苹果API在mkmapview中获取路线？

我知道谷歌地图是已知的最好的地图，但我不想要下载一堆额外的图书馆和所有这一切。 我宁愿做一些快速而简单的事情来获得从A点到B点的快速路线，并完成它。 有没有办法做到这一点内置函数/库？ 有人能指出我正确的方向吗？

编辑

我并不是想在转弯方向或者我的情况下转弯，我只是想从头到尾画一条线。 也许给select哪些路线采取。 有没有办法做到这一点或没有？

在iOS 7中，您可以使用MKDirectionsRequest获取并显示路线。

以下是一些示例代码，用于显示从当前位置到另一个地图项的路线： 

 MKDirectionsRequest *request = [[MKDirectionsRequest alloc] init]; [request setSource:[MKMapItem mapItemForCurrentLocation]]; [request setDestination:myMapItem]; [request setTransportType:MKDirectionsTransportTypeAny]; // This can be limited to automobile and walking directions. [request setRequestsAlternateRoutes:YES]; // Gives you several route options. MKDirections *directions = [[MKDirections alloc] initWithRequest:request]; [directions calculateDirectionsWithCompletionHandler:^(MKDirectionsResponse *response, NSError *error) { if (!error) { for (MKRoute *route in [response routes]) { [myMapView addOverlay:[route polyline] level:MKOverlayLevelAboveRoads]; // Draws the route above roads, but below labels. // You can also get turn-by-turn steps, distance, advisory notices, ETA, etc by accessing various route properties. } } }];

如果您是iOS 7的新手，则需要实现mapView:rendererForOverlay:方法才能显示任何叠加层。 就像是： 

 - (MKOverlayRenderer *)mapView:(MKMapView *)mapView rendererForOverlay:(id<MKOverlay>)overlay { if ([overlay isKindOfClass:[MKPolyline class]]) { MKPolylineRenderer *renderer = [[MKPolylineRenderer alloc] initWithOverlay:overlay]; [renderer setStrokeColor:[UIColor blueColor]]; [renderer setLineWidth:5.0]; return renderer; } return nil; }

Swift版本 

  let request = MKDirectionsRequest(); request.source = MKMapItem.mapItemForCurrentLocation(); let locationPlacemark = MKPlacemark(coordinate: CLLocationCoordinate2DMake(13.724362, 100.515342), addressDictionary: nil); request.destination = MKMapItem(placemark: locationPlacemark); request.transportType = MKDirectionsTransportType.Any; request.requestsAlternateRoutes = true; let directions = MKDirections(request: request); directions.calculateDirectionsWithCompletionHandler ({ (response: MKDirectionsResponse?, error: NSError?) in print(response?.description) print(error?.description) guard let response = response else { //handle the error here return; } self.myRoute = response.routes[0] self.mkMapView.addOverlay(self.myRoute!.polyline) });

和它的代表 

  func mapView(mapView: MKMapView, rendererForOverlay overlay: MKOverlay) -> MKOverlayRenderer { let myLineRenderer = MKPolylineRenderer(polyline: (self.myRoute?.polyline)!) myLineRenderer.strokeColor = UIColor.redColor() myLineRenderer.lineWidth = 3 return myLineRenderer }

另一种可能性是将地址发送到Apple地图应用程序。 我刚刚看到这是在专业的环境中完成的，那是我select的方法。

如果你想在显示一个警告对话框，当你点击一个引脚使这个： 

 - (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control { [mapView deselectAnnotation:view.annotation animated:YES]; if ([view.annotation isKindOfClass:[PinOfProject class]]) { CLLocationCoordinate2D coordinate = [view.annotation coordinate]; MKPlacemark *placemark = [[MKPlacemark alloc] initWithCoordinate:coordinate addressDictionary:nil]; MKMapItem *mapitem = [[MKMapItem alloc] initWithPlacemark:placemark]; self.mapItem = mapitem; CGPoint pin = [mapView convertCoordinate:view.annotation.coordinate toPointToView:self.view]; CGRect rec = CGRectMake(pin.x-13, pin.y-14,view.frame.size.width,view.frame.size.height); [self showAlertInformationForTrash:rec]; } } -(void)showAlertInformationForTrash:(CGRect)rec{ UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:@"Show Route?" delegate:self cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:@"Route", @"Cancel", nil]; actionSheet.tag = 1; [actionSheet showFromRect:rec inView:self.view animated:YES]; } - (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex { if (buttonIndex == 0) { [self showRouteToAnnotation]; } } -(void)showRouteToAnnotation{ MKMapItem *myMapItem = self.mapItem; MKDirectionsRequest *request = [[MKDirectionsRequest alloc] init]; [request setSource:[MKMapItem mapItemForCurrentLocation]]; [request setDestination:myMapItem]; [request setTransportType:MKDirectionsTransportTypeAutomobile]; // This can be limited to automobile and walking directions. [request setRequestsAlternateRoutes:NO]; // Gives you several route options. MKDirections *directions = [[MKDirections alloc] initWithRequest:request]; [directions calculateDirectionsWithCompletionHandler:^(MKDirectionsResponse *response, NSError *error) { if (!error) { for (MKRoute *route in [response routes]) { [self.mapView addOverlay:[route polyline] level:MKOverlayLevelAboveRoads]; // Draws the route above roads, but below labels. for (int i = 0; i < route.steps.count; i++) { MKRouteStep *step = [route.steps objectAtIndex:i]; NSString *newStep = step.instructions; NSLog(@"%@", newStep); } } } }]; } - (MKOverlayRenderer *)mapView:(MKMapView *)mapView rendererForOverlay:(id<MKOverlay>)overlay { if ([overlay isKindOfClass:[MKPolyline class]]) { MKPolylineRenderer *renderer = [[MKPolylineRenderer alloc] initWithOverlay:overlay]; [renderer setStrokeColor:[UIColor blueColor]]; [renderer setLineWidth:5.0]; return renderer; } return nil; }
  • 哦，但请注意，我在我的.h @属性（强，非primefaces）MKMapItem * mapItem;
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