Inilah cara resmi Apple:
// 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];
}
Jika Anda ingin mendapatkan instruksi mengemudi atau berjalan ke lokasi, Anda dapat memasukkan a mapItemForCurrentLocation
dengan MKMapItem
in the array in +openMapsWithItems:launchOptions:
, dan mengatur opsi peluncuran dengan tepat.
// 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];
}
Anda dapat menyimpan kode asli iOS 5 dan lebih rendah dalam else
pernyataan setelahnya if
. Perhatikan bahwa jika Anda membalik urutan item dalam openMapsWithItems:
array, Anda akan mendapatkan petunjuk arah dari koordinat ke lokasi Anda saat ini. Anda mungkin dapat menggunakannya untuk mendapatkan petunjuk arah antara dua lokasi mana pun dengan melewatkan MKMapItem
item peta yang dibuat alih-alih lokasi sekarang. Saya belum mencobanya.
Akhirnya, jika Anda memiliki alamat (sebagai string) yang Anda inginkan, gunakan geocoder untuk membuat MKPlacemark
, dengan cara 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
.