我正在开发一个iOS应用,必须从一个位置到另一个位置获取路线。我正在使用MKDirectionsRequest API获得指导。该api提供了两个位置之间的方向。但是问题在于,此api返回的路线未考虑车辆行驶的方向(路线)。有没有办法在iOS中获得用户当前位置到目的地之间的路线,这也考虑了移动车辆的路线。目前,我正在使用以下功能:
-(void)displayDirections{
CLLocation *currentLocation = [[CLLocation alloc] initWithLatitude:currentLocationLatitude longitude:currentLocationLongitude];
MKPlacemark *placemarker0 = [[MKPlacemark alloc]initWithCoordinate:currentLocation.coordinate];
MKMapItem *myMapItem0 = [[MKMapItem alloc] initWithPlacemark:placemarker0];
CLLocation *location = [[CLLocation alloc] initWithLatitude:destinationLocationLatitude longitude:destinationLocationLongitude]
MKPlacemark *placemarker1 = [[MKPlacemark alloc]initWithCoordinate:location.coordinate];
MKMapItem *myMapItem1 = [[MKMapItem alloc] initWithPlacemark:placemarker1];
MKDirectionsRequest *request = [[MKDirectionsRequest alloc] init];
[request setSource:myMapItem0];
[request setDestination:myMapItem1];
[request setTransportType:MKDirectionsTransportTypeAny];
[request setRequestsAlternateRoutes:YES]; // Gives you several route options.
MKDirections *directions = [[MKDirections alloc] initWithRequest:request];
__weak COMSiteDetailViewController *weakSelf = self;
[directions calculateDirectionsWithCompletionHandler:^(MKDirectionsResponse *response, NSError *error) {
if (!error) {
[weakSelf.mkMapView removeOverlays:weakSelf.mkMapView.overlays];
NSArray *routes = [response routes];
NSArray *sortedArray;
sortedArray = [routes sortedArrayUsingComparator:^NSComparisonResult(MKRoute *a, MKRoute *b) {
CLLocationDistance first = a.distance;
CLLocationDistance second = b.distance;
return first < second;
}];
int count = 1;
for (MKRoute *route in sortedArray) {
if(count < sortedArray.count){
route.polyline.title = @"longer";
}else{
route.polyline.title = @"shortest";
}
count++;
[self.mkMapView addOverlay:[route polyline] level:MKOverlayLevelAboveRoads];
}
}
}];
}
谢谢!
答案 0 :(得分:0)
搜索网络后,我发现Google API或Apple MapKit Directions API在提供路线信息时都没有考虑车辆的行驶方向或运动。它仅考虑起点/终点位置的坐标并给出最短的路线。
因此,目前无法使用Apple / Google Apis显示考虑车辆行驶方向的路线。
尽管如此,我在应用程序中还使用了其他付费的Apis,例如https://developer.here.com。该API非常可靠,定价也非常合理。
谢谢!