Ecco il modo Apple ufficiale:
// Check for iOS 6
Class mapItemClass = [MKMapItem class];
if (mapItemClass && [mapItemClass respondsToSelector:@selector(openMapsWithItems:launchOptions:)])
{
// Create an MKMapItem to pass to the Maps app
CLLocationCoordinate2D coordinate =
CLLocationCoordinate2DMake(16.775, -3.009);
MKPlacemark *placemark = [[MKPlacemark alloc] initWithCoordinate:coordinate
addressDictionary:nil];
MKMapItem *mapItem = [[MKMapItem alloc] initWithPlacemark:placemark];
[mapItem setName:@"My Place"];
// Pass the map item to the Maps app
[mapItem openInMapsWithLaunchOptions:nil];
}
Se si desidera ottenere le istruzioni di guida o di camminata verso la posizione, è possibile includere un mapItemForCurrentLocation
con MKMapItem
l'array in +openMapsWithItems:launchOptions:
e impostare le opzioni di avvio in modo appropriato.
// Check for iOS 6
Class mapItemClass = [MKMapItem class];
if (mapItemClass && [mapItemClass respondsToSelector:@selector(openMapsWithItems:launchOptions:)])
{
// Create an MKMapItem to pass to the Maps app
CLLocationCoordinate2D coordinate =
CLLocationCoordinate2DMake(16.775, -3.009);
MKPlacemark *placemark = [[MKPlacemark alloc] initWithCoordinate:coordinate
addressDictionary:nil];
MKMapItem *mapItem = [[MKMapItem alloc] initWithPlacemark:placemark];
[mapItem setName:@"My Place"];
// Set the directions mode to "Walking"
// Can use MKLaunchOptionsDirectionsModeDriving instead
NSDictionary *launchOptions = @{MKLaunchOptionsDirectionsModeKey : MKLaunchOptionsDirectionsModeWalking};
// Get the "Current User Location" MKMapItem
MKMapItem *currentLocationMapItem = [MKMapItem mapItemForCurrentLocation];
// Pass the current location and destination map items to the Maps app
// Set the direction mode in the launchOptions dictionary
[MKMapItem openMapsWithItems:@[currentLocationMapItem, mapItem]
launchOptions:launchOptions];
}
Successivamente puoi conservare il tuo codice iOS 5 originale e un codice inferiore in una else
dichiarazione if
. Notare che se si inverte l'ordine degli elementi openMapsWithItems:
nell'array, si otterranno le indicazioni dalle coordinate alla posizione corrente. Probabilmente potresti usarlo per ottenere indicazioni stradali tra due posizioni qualsiasi passando un MKMapItem
elemento della mappa della posizione costruito anziché quello corrente. Non ci ho provato.
Infine, se si dispone di un indirizzo (come stringa) a cui si desidera ottenere indicazioni stradali, utilizzare il geocoder per crearne uno MKPlacemark
, tramite CLPlacemark
.
// Check for iOS 6
Class mapItemClass = [MKMapItem class];
if (mapItemClass && [mapItemClass respondsToSelector:@selector(openMapsWithItems:launchOptions:)])
{
CLGeocoder *geocoder = [[CLGeocoder alloc] init];
[geocoder geocodeAddressString:@"Piccadilly Circus, London, UK"
completionHandler:^(NSArray *placemarks, NSError *error) {
// Convert the CLPlacemark to an MKPlacemark
// Note: There's no error checking for a failed geocode
CLPlacemark *geocodedPlacemark = [placemarks objectAtIndex:0];
MKPlacemark *placemark = [[MKPlacemark alloc]
initWithCoordinate:geocodedPlacemark.location.coordinate
addressDictionary:geocodedPlacemark.addressDictionary];
// Create a map item for the geocoded address to pass to Maps app
MKMapItem *mapItem = [[MKMapItem alloc] initWithPlacemark:placemark];
[mapItem setName:geocodedPlacemark.name];
// Set the directions mode to "Driving"
// Can use MKLaunchOptionsDirectionsModeWalking instead
NSDictionary *launchOptions = @{MKLaunchOptionsDirectionsModeKey : MKLaunchOptionsDirectionsModeDriving};
// Get the "Current User Location" MKMapItem
MKMapItem *currentLocationMapItem = [MKMapItem mapItemForCurrentLocation];
// Pass the current location and destination map items to the Maps app
// Set the direction mode in the launchOptions dictionary
[MKMapItem openMapsWithItems:@[currentLocationMapItem, mapItem] launchOptions:launchOptions];
}];
}
currentLocationMapItem
.