我正在Xcode 4.3.3，iOS 5和Mapkit庫上開發。 該應用應該顯示Google地圖上的當前位置，獲取目的地址，並最終繪製這兩點之間的最短路徑。使用Mapkit和Google地圖的iPhone中的GPS路由（最短路徑）
我用這個教程執行應用程序，我現在有當前的位置： http://blog.objectgraph.com/index.php/2009/04/02/iphone-sdk-30-playing-with-map-kit/
我尋找路由，但我還沒有發現任何資源。 請指導我如何繪製當前位置和目的地之間的最短路徑。
謝謝！
iOS MapKit不提供應用程序作爲服務的路由信息。相反，您現在的選擇是從第三方機制獲取路由信息，或者自行構建路由（如果您沒有基礎街道數據，則基本不可能）。
如果您需要在自己的應用程序中提供路由信息，或者想要利用Apple的Map進行導航，則可以考慮將地圖路由到某個位置，否則，您可能會將CloudMade作爲替代地圖系統。
如果您想調出Map App進行導航，您基本上需要打開一個包含源和目標位置的URL。這裏有一個例子：
CLLocationManager *manager = [[[CLLocationManager alloc] init] autorelease];
CLLocationCoordinate2D currentLocation = [manager location].coordinate;
NSString *from = [NSString stringWithFormat: @"%f,%f",
currentLocation.latitude, currentLocation.longitude];
// used to be able to (3.2 iPad) "Current+Location", now we have to send: lat,long
NSString *encodedAddress = [address stringByAddingPercentEscapesUsingEncoding:
NSUTF8StringEncoding];
NSString *url = [NSString stringWithFormat:
@"http://maps.google.com/maps?saddr=%@&daddr=%@", from, encodedAddress];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:url]];
你是谷歌的地圖工具包和路線？
你會發現這個：http://inlight.com.au/posts/mapkit它解釋瞭如何使用谷歌地圖和解碼響應提取點獲取路線。
還有一個商業工具包：http://mtdirectionsk.it/
你可以試試這個只適用於iOS 6
Class itemClass = [MKMapItem class];
if (itemClass && [itemClass respondsToSelector:@selector(openMapsWithItems:launchOptions:)]) {
CLGeocoder *geocoder = [[CLGeocoder alloc] init];
CLLocation *newLocation = [[CLLocation alloc]initWithLatitude:getLatitude
longitude:getLongitude];
[geocoder reverseGeocodeLocation:newLocation
completionHandler:^(NSArray *placemarks, NSError *error) {
MKPlacemark *placeMark = [[MKPlacemark alloc] initWithPlacemark:[placemarks objectAtIndex:0]];
MKMapItem *mapItem = [[MKMapItem alloc]initWithPlacemark:placeMark];
MKMapItem *mapItem2 = [MKMapItem mapItemForCurrentLocation];
NSArray *mapItems = @[mapItem, mapItem2];
NSDictionary *options = @{
MKLaunchOptionsDirectionsModeKey:MKLaunchOptionsDirectionsModeDriving,
MKLaunchOptionsMapTypeKey:
[NSNumber numberWithInteger:MKMapTypeStandard],
MKLaunchOptionsShowsTrafficKey:@YES
};
[MKMapItem openMapsWithItems:mapItems launchOptions:options];
} ];
}
else
{
UIAlertView *errorAlert = [[UIAlertView alloc] initWithTitle:@"Error" message:@"Failed to Get Your Location"delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[errorAlert show];
}
}
Below ans work for all ios:
NSString *deviceVersion = [[UIDevice currentDevice] systemVersion];
NSLog(@"My Device version is :%@ ",deviceVersion);
//********* For ios 6 supporting devices *********
if ([deviceVersion isEqualToString:@"6.0"])
{
Class itemClass = [MKMapItem class];
if (itemClass && [itemClass respondsToSelector:@selector(openMapsWithItems:launchOptions:)]) {
CLGeocoder *geocoder = [[CLGeocoder alloc] init];
CLLocation *newLocation = [[CLLocation alloc]initWithLatitude:getLatitude
longitude:getLongitude];
[geocoder reverseGeocodeLocation:newLocation
completionHandler:^(NSArray *placemarks, NSError *error) {
MKPlacemark *placeMark = [[MKPlacemark alloc] initWithPlacemark:[placemarks objectAtIndex:0]];
MKMapItem *mapItem = [[MKMapItem alloc]initWithPlacemark:placeMark];
MKMapItem *mapItem2 = [MKMapItem mapItemForCurrentLocation];
NSArray *mapItems = @[mapItem, mapItem2];
NSDictionary *options = @{
MKLaunchOptionsDirectionsModeKey:MKLaunchOptionsDirectionsModeDriving,
MKLaunchOptionsMapTypeKey:
[NSNumber numberWithInteger:MKMapTypeStandard],
MKLaunchOptionsShowsTrafficKey:@YES
};
[MKMapItem openMapsWithItems:mapItems launchOptions:options];
} ];
}
else
{
UIAlertView *errorAlert = [[UIAlertView alloc] initWithTitle:@"Error" message:@"Failed to Get Your Location"delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[errorAlert show];
}
}
//********* For other ios supporting devices *********
else {
MKCoordinateRegion region = { {0.0, 0.0 }, { 0.0, 0.0 } };
region.center.latitude = getLatitude;
region.center.longitude = getLongitude;
MKCoordinateRegion currentRegion = { {0.0, 0.0 }, { 0.0, 0.0 } };
currentRegion.center.latitude = currentLatitude;
currentRegion.center.longitude = currentLongitude;
region.span.longitudeDelta = 4.0f;
region.span.latitudeDelta = 4.0f;
currentRegion.span.longitudeDelta = 4.0f;
currentRegion.span.latitudeDelta = 4.0f;
CLLocationCoordinate2D start = { currentRegion.center.latitude, currentRegion.center.longitude };
CLLocationCoordinate2D destination = { region.center.latitude, region.center.longitude };
NSString *googleMapsURLString = [NSString stringWithFormat:@"http://maps.google.com/?saddr=%1.6f,%1.6f&daddr=%1.6f,%1.6f",start.latitude, start.longitude, destination.latitude, destination.longitude];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:googleMapsURLString]];
}
}