Directions Issue in Map View - ios

Question

I am trying to provide directions to certain areas I have marked with map pins on my map view. On those pins I have displayed the name of the location and where it is located. I would like for them to be able to click the "i" that is usually on some Apple "pop ups" and it direct them to the Maps app and give them directions based on the coordinates I programmed in to place the map pin where it is. I will post two pictures first of what I have and what I would like to accomplish.
What I have right now
What I want to add to my pin (just the "i")
Now I will post my code of how I accomplished my first screenshot.
ViewController.h:
#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#interface ViewController : UIViewController
{
MKMapView *mapView;
}
#property (nonatomic, retain) IBOutlet MKMapView *mapView;
-(IBAction)SetMap:(id)sender;
-(IBAction)GetLocation:(id)sender;
-(IBAction)Directions:(id)sender;
#end
ViewController.m:
#import "ViewController.h"
#import "MapPin.h"
#interface ViewController ()
#end
#implementation ViewController
#synthesize mapView;
- (void)viewDidLoad
{
[super viewDidLoad];
//Moss Preserve coordinates
MKCoordinateRegion MossPreserveRegion = { {0.0, 0.0}, {0.0, 0.0}};
MossPreserveRegion.center.latitude = 33.3816566;
MossPreserveRegion.center.longitude = -86.8415451;
MossPreserveRegion.span.longitudeDelta = 55.0;
MossPreserveRegion.span.latitudeDelta = 55.0;
[mapView setRegion:MossPreserveRegion animated:YES];
//Moss Preserve annotation and map pin
MapPin *MossPreserveAnnotation = [[MapPin alloc] init];
MossPreserveAnnotation.title = #"Moss Rock Preserve Boulder Fields";
MossPreserveAnnotation.subtitle = #"Hoover, AL";
MossPreserveAnnotation.coordinate = MossPreserveRegion.center;
[mapView addAnnotation:MossPreserveAnnotation];
//Horse Pens 40 coordinates
MKCoordinateRegion HorsePenRegion = { {0.0, 0.0}, {0.0, 0.0}};
HorsePenRegion.center.latitude = 33.9207535;
HorsePenRegion.center.longitude = -86.3089447;
HorsePenRegion.span.longitudeDelta = 55.0;
HorsePenRegion.span.latitudeDelta = 55.0;
[mapView setRegion:HorsePenRegion animated:YES];
//Horse Pens 40 annotation and map pin
MapPin *HorsePenAnnotation = [[MapPin alloc] init];
HorsePenAnnotation.title = #"Horse Pens 40";
HorsePenAnnotation.subtitle = #"Steele, AL ";
HorsePenAnnotation.coordinate = HorsePenRegion.center;
[mapView addAnnotation:HorsePenAnnotation];
// Create an MKMapItem to pass to the Maps app
MKPlacemark *placemark = [[MKPlacemark alloc] initWithCoordinate:MossPreserveAnnotation.coordinate
addressDictionary:nil];
MKMapItem *mossPreserveMapItem = [[MKMapItem alloc] initWithPlacemark:placemark];
[mossPreserveMapItem setName:MossPreserveAnnotation.title];
NSDictionary *launchOptions = #{MKLaunchOptionsDirectionsModeKey : MKLaunchOptionsDirectionsModeDriving};
// Get the "Current User Location" MKMapItem
placemark = [[MKPlacemark alloc] initWithCoordinate:HorsePenRegion.coordinate
addressDictionary:nil];
MKMapItem *horsePenMapItem = [[MKMapItem alloc] initWithPlacemark:placemark];
horsePenmapItem.name = HorsePenRegion.title;
// Pass the current location and destination map items to the Maps app
// Set the direction mode in the launchOptions dictionary
[MKMapItem openMapsWithItems:#[mossPreserveMapItem, horsePenmapItem]
launchOptions:launchOptions];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(IBAction)SetMap:(id)sender;
{
switch (((UISegmentedControl *) sender).selectedSegmentIndex)
{
case 0:
mapView.mapType = MKMapTypeStandard;
break;
case 1:
mapView.mapType = MKMapTypeSatellite;
break;
case 2:
mapView.mapType = MKMapTypeHybrid;
break;
default:
break;
}
}
-(IBAction)GetLocation:(id)sender;
{
mapView.showsUserLocation = YES;
}
-(IBAction)Directions:(id)sender;
{
NSString *urlString = #"http://maps.apple.com/maps?daddr=33.3816566,-86.8415451";
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:urlString]];
}
#end
MapPin.h:
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
#interface MapPin : NSObject <MKAnnotation>
{
CLLocationCoordinate2D coordinate;
NSString *title;
NSString *subtitle;
}
#property (nonatomic, assign) CLLocationCoordinate2D coordinate;
#property (nonatomic, copy) NSString *title;
#property (nonatomic, copy) NSString *subtitle;
#end
MapPin.m:
#import "MapPin.h"
#implementation MapPin
#synthesize coordinate, title, subtitle;
#end
I see this all of the time in apps that I use. i just don't even really know what it is called, so I could even search for it. I am not looking for someone to hold my hand and tell me the answer, just some proper guidance and constructive criticism.
Thanks

Answer 1

Is this what you need?
#import "MapViewController.h"
#import "MapPin.h"
#import MapKit;
#interface MapViewController ()<MKMapViewDelegate>
#property (nonatomic, weak) IBOutlet MKMapView *mapView;
#end
#implementation MapViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
_mapView.delegate = self;
//Moss Preserve coordinates
MKCoordinateRegion MossPreserveRegion = { {0.0, 0.0}, {0.0, 0.0}};
MossPreserveRegion.center.latitude = 33.3816566;
MossPreserveRegion.center.longitude = -86.8415451;
MossPreserveRegion.span.longitudeDelta = 55.0;
MossPreserveRegion.span.latitudeDelta = 55.0;
[_mapView setRegion:MossPreserveRegion animated:YES];
//Moss Preserve annotation and map pin
MapPin *MossPreserveAnnotation = [[MapPin alloc] init];
MossPreserveAnnotation.title = #"Moss Rock Preserve Boulder Fields";
MossPreserveAnnotation.subtitle = #"Hoover, AL";
MossPreserveAnnotation.coordinate = MossPreserveRegion.center;
[_mapView addAnnotation:MossPreserveAnnotation];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
// Create an MKMapItem to pass to the Maps app
MKPlacemark *placemark = [[MKPlacemark alloc] initWithCoordinate:view.annotation.coordinate
addressDictionary:nil];
MKMapItem *mossPreserveMapItem = [[MKMapItem alloc] initWithPlacemark:placemark];
[mossPreserveMapItem setName:view.annotation.title];
NSDictionary *launchOptions = #{MKLaunchOptionsDirectionsModeKey : MKLaunchOptionsDirectionsModeDriving};
// Get the "Current User Location" MKMapItem
MKMapItem *currentLocationItem = [MKMapItem mapItemForCurrentLocation];
[MKMapItem openMapsWithItems:#[mossPreserveMapItem, currentLocationItem]
launchOptions:launchOptions];
}
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation
{
MKAnnotationView *annotationView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation
reuseIdentifier:#"MKPinAnnotationView"];
annotationView.canShowCallout = YES;
UIButton *detailButton = [UIButton buttonWithType:UIButtonTypeInfoLight];
annotationView.rightCalloutAccessoryView = detailButton;
return annotationView;
}

Answer 2

You need to create 2 map items for your locations and pass as arguments to MKMapItem's openMapsWithItems:launchOptions:
// Create an MKMapItem to pass to the Maps app
MKPlacemark *placemark = [[MKPlacemark alloc] initWithCoordinate:MossPreserveAnnotation.coordinate
addressDictionary:nil];
MKMapItem *mapItem1 = [[MKMapItem alloc] initWithPlacemark:placemark];
[mapItem setName:MossPreserveAnnotation.title];
NSDictionary *launchOptions = #{MKLaunchOptionsDirectionsModeKey : MKLaunchOptionsDirectionsModeDriving};
// Get the "Current User Location" MKMapItem
placemark = [[MKPlacemark alloc] initWithCoordinate:HorsePenAnnotation.coordinate
addressDictionary:nil];
MKMapItem *mapItem2 = [[MKMapItem alloc] initWithPlacemark:placemark];
mapItem2.name = HorsePenAnnotation.title;
// Pass the current location and destination map items to the Maps app
// Set the direction mode in the launchOptions dictionary
[MKMapItem openMapsWithItems:#[mapItem1, mapItem2]
launchOptions:launchOptions];