Apple Map : get direction - iphone

Question

How can I use Apple map for getting direction between two places?
I can provide the latitude and longitude of that two places?
Is it possible to show the direction in my app itself?
or Should I need to show the direction in the in built Map app of apple's iPhone?

Answer 1

You can send user to navigation app in iOS6 or google maps prior to iOS6.
Here's a sample code:
Class itemClass = [MKMapItem class];
if (itemClass && [itemClass respondsToSelector:#selector(openMapsWithItems:launchOptions:)]) {
// iOS 6 MKMapItem available
MKPlacemark* place = [[MKPlacemark alloc] initWithCoordinate:_targetLocation addressDictionary:nil];
MKMapItem* destination = [[MKMapItem alloc] initWithPlacemark:place];
destination.name = #"Name Here!";
NSArray* items = [[NSArray alloc] initWithObjects: destination, nil];
NSDictionary* options = [[NSDictionary alloc] initWithObjectsAndKeys:
MKLaunchOptionsDirectionsModeDriving,
MKLaunchOptionsDirectionsModeKey, nil];
[MKMapItem openMapsWithItems:items launchOptions:options];
} else {
// Pre-iOS 6
CLLocationCoordinate2D coords = _lastLocation.coordinate;
NSString *stringURL = [NSString stringWithFormat:#"http://maps.google.com/maps?saddr=%g,%g&daddr=%g,%g", coords.latitude, coords.longitude, _targetLocation.latitude, _targetLocation.longitude];
NSURL *url = [NSURL URLWithString:stringURL];
[[UIApplication sharedApplication] openURL:url];
}

Answer 2

Here is the working code for showing directions on Apple map. It'll work for current place to your destination place and you just need to pass lat & long of destination place.
double destinationLatitude, destinationLongitude;
destinationLatitude=// Latitude of destination place.
destinationLongitude=// Longitude of destination place.
Class mapItemClass = [MKMapItem class];
if (mapItemClass && [mapItemClass respondsToSelector:#selector(openMapsWithItems:launchOptions:)])
{
// Create an MKMapItem to pass to the Maps app
CLLocationCoordinate2D coordinate =
CLLocationCoordinate2DMake(destinationLatitude,destinationLongitude);
MKPlacemark *placemark = [[MKPlacemark alloc] initWithCoordinate:coordinate
addressDictionary:nil];
MKMapItem *mapItem = [[MKMapItem alloc] initWithPlacemark:placemark];
[mapItem setName:#"Name/text on destination annotation pin"];
// Set the directions mode to "Driving"
// Can use MKLaunchOptionsDirectionsModeDriving 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];