Question

This is the way where I am taking the current location

    NSString* lat = [[NSString alloc]initWithFormat:@"%f",locationManager.location.coordinate.latitude];
NSString* lon = [[NSString alloc]initWithFormat:@"%f",locationManager.location.coordinate.longitude];

    NSString *URL = [NSString stringWithFormat:@"http://maps.google.com/maps/geo?q=%@,%@&output=csv&sensor=false",lat,lon];
    NSURLRequest *rq = [NSURLRequest requestWithURL:[NSURL URLWithString:URL]];
    con = [[NSURLConnection alloc] initWithRequest:rq delegate:self];
    webData = [[NSMutableData data] retain];

and in the connection delegate method I am getting the current location name.200,9,”IITI Computer Education, Wadala, Mumbai, Maharashtra 400067, India” in the simulator.

Now my question is How can we set annotation on the same place in the map using the string place name which I got previously.

Thanks in advance

Answer 1

First make an objective c class make your .h file look like following

 #import <Foundation/Foundation.h>
 #import <Mapkit/MKAnnotation.h>
 @interface annotation : NSObject <MKAnnotation>

 {
  CLLocationCoordinate2D coordinate;
  NSString *title;
  NSString *subtitle;

 }

   @property(nonatomic, assign) CLLocationCoordinate2D coordinate;
   @property(nonatomic, copy) NSString *title;
   @property(nonatomic, copy) NSString *subtitle;

  @end

Now in .m file

#import "annotation.h"

@implementation annotation

@synthesize  coordinate,title,subtitle;

@end

Now in your controller.m file where you want to add an annotaion make an import of above file

#import "annotation.h"

now you can use the following function to add anotation to any cordinate

-(void)addAnnotations{

annotation *userPositionAnnote = [[annotation alloc]init];
userPositionAnnote.title = @"My Current Position";
userPositionAnnote.coordinate = SetYourCordinates; // set your cordinates here where you want to add annotaion

[YourMap addAnnotation:userPositionAnnote];

MKCoordinateRegion region = {{0.0,0.0}, {0.0,0.0}};
region.center = userPositionAnnote.coordinate;
region.span.longitudeDelta = 0.001;
region.span.latitudeDelta = 0.001;

[YourMap setRegion:region animated:YES];
}

hope this will help you