如何从任何城市或地名设置地图位置

Question

这就是我现在所处的位置

    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];

在连接委托方法中，我得到了当前的位置名，200，9，"IITI计算机教育，瓦达拉，孟买，马哈拉施特拉邦，印度“在模拟器中。

现在，我的问题是，如何使用前面得到的字符串地名在映射中的同一位置设置注释。

提前感谢

Answer 1

首先，创建一个目标c类，使您的.h文件看起来如下所示

 #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

现在在.m文件中

#import "annotation.h"

@implementation annotation

@synthesize  coordinate,title,subtitle;

@end

现在，在要添加注释的控制器.m文件中，导入上述文件

#import "annotation.h"

现在，您可以使用以下函数将指定添加到任何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];
}

希望这能帮到你