How to draw route map on Apple map between two annotation?

Question

I want to achieve this following route poly line view over Apple map.

And want to show poly line on road, which connect from source to destination.

my code for viewcontroller header file is...

#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#import <CoreLocation/CoreLocation.h>
@interface TrackViewController : UIViewController <MKMapViewDelegate, CLLocationManagerDelegate>
@property (weak, nonatomic) IBOutlet MKMapView *mapView;

@property (strong,nonatomic) NSMutableArray *arrAnnotation;
@property (nonatomic, retain) MKPolyline *polyLine;
@property (nonatomic, retain) MKPolylineView *polyLineView;

@property (nonatomic, strong) CLLocationManager *locationManager;
@property (nonatomic, strong) CLLocation *currentLocation;

my code for viewcontroller implementation file is...

- (void)viewDidLoad {
[super viewDidLoad];

_mapView.showsUserLocation = YES;

if ([CLLocationManager locationServicesEnabled]) {
    if (self.locationManager == nil) {
        self.locationManager = [[CLLocationManager alloc]init];
        self.locationManager.delegate = self;
        self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
        self.locationManager.distanceFilter = kCLDistanceFilterNone;
    }
    [self.locationManager startUpdatingLocation];
}

NSArray *name=[[NSArray alloc]initWithObjects:
               @"Mumbai",
               @"Chennai", nil];
self.arrAnnotation=[[NSMutableArray alloc]initWithCapacity:name.count];

MKPointAnnotation *mappin1, *mappin2;

CLLocationCoordinate2D location[3];

mappin1 = [[MKPointAnnotation alloc]init];
location[0] = CLLocationCoordinate2DMake(19.129275,72.905273);
mappin1.coordinate=location[0];
mappin1.title=[name objectAtIndex:0];
[self.arrAnnotation addObject:mappin1];

mappin2 = [[MKPointAnnotation alloc]init];
location[1] = CLLocationCoordinate2DMake(13.063426,80.288086);
mappin2.coordinate=location[1];
mappin2.title=[name objectAtIndex:1];
[self.arrAnnotation addObject:mappin2];

[self.mapView addAnnotations:self.arrAnnotation];
self.mapView.mapType = MKMapTypeStandard;
self.mapView.showsUserLocation = YES;

self.polyLine = [MKPolyline polylineWithCoordinates:location count:2];
[self.mapView setVisibleMapRect:[self.polyLine boundingMapRect]];
[self.mapView addOverlay:self.polyLine];
}

and my out is...

Please help me... Thanks in advance.

https://www.raywenderlich.com/166182/mapkit-tutorial-overlay-views — Nitish, Mar 29 '18 at 13:58
Possible duplicate of [is there a way to get directions in mkmapview using a built in apple API?](https://stackoverflow.com/questions/19772900/is-there-a-way-to-get-directions-in-mkmapview-using-a-built-in-apple-api) — LorenzOliveto, Mar 29 '18 at 14:05
Possible duplicate of [Finding Path/Route Between two points on MapKit in iPhone](https://stackoverflow.com/questions/12002179/finding-path-route-between-two-points-on-mapkit-in-iphone) — Ankit Jayaswal, Mar 29 '18 at 19:21

score 1 · Answer 1 · answered Mar 29 '18 at 14:06

1

Your location array should not be filled with only two coordinates. Because adding only two coordinates will join the two points together in a straight line. So you need to add more coordinates to your location array in order to have a more accurate polyline.

answered Mar 29 '18 at 14:06

DionizB

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how to do that please explain me... – Anupam Das Mar 29 '18 at 14:13
Do you have your route coordinates? – DionizB Mar 29 '18 at 14:17
yes i've two coordinators – Anupam Das Mar 30 '18 at 05:34
@AnupamDas check this answer here https://stackoverflow.com/questions/12002179/finding-path-route-between-two-points-on-mapkit-in-iphone – DionizB Mar 30 '18 at 07:23

How to draw route map on Apple map between two annotation?

1 Answers1