#import <CoreLocation/CoreLocation.h>

　　- (void)geocodeAddressString:(NSString *)addressString completionHandler:(CLGeocodeCompletionHandler)completionHandler;

　　- (void)reverseGeocodeLocation:(CLLocation *)location completionHandler:(CLGeocodeCompletionHandler)completionHandler;

　　YYViewController.m文件 // //  YYViewController.m //  19-地理编码 // //  Created by apple on 14-8-11. //  Copyright (c) 2014年 yangyong. All rights reserved. // #import "YYViewController.h" #import <CoreLocation/CoreLocation.h> @interface YYViewController () @property(nonatomic,strong)CLGeocoder *geocoder; #pragma mark-地理编码 - (IBAction)geocode; @property (weak, nonatomic) IBOutlet UITextField *addressField; @property (weak, nonatomic) IBOutlet UILabel *longitudeLabel; @property (weak, nonatomic) IBOutlet UILabel *latitudeLabel; @property (weak, nonatomic) IBOutlet UILabel *detailAddressLabel; #pragma mark-反地理编码 - (IBAction)reverseGeocode; @property (weak, nonatomic) IBOutlet UITextField *longitudeField; @property (weak, nonatomic) IBOutlet UITextField *latitudeField; @property (weak, nonatomic) IBOutlet UILabel *reverdeDetailAddressLabel; @end

@implementation YYViewController #pragma mark-懒加载 -(CLGeocoder *)geocoder {     if (_geocoder==nil) {         _geocoder=[[CLGeocoder alloc]init];     }     return _geocoder; } - (void)viewDidLoad {     [super viewDidLoad]; } /**  *  地理编码：地名—>经纬度坐标  */ - (IBAction)geocode {     //1.获得输入的地址     NSString *address=self.addressField.text;     if (address.length==0) return;         //2.开始地理编码     //说明：调用下面的方法开始编码，不管编码是成功还是失败都会调用block中的方法     [self.geocoder geocodeAddressString:address completionHandler:^(NSArray *placemarks, NSError *error) {         //如果有错误信息，或者是数组中获取的地名元素数量为0，那么说明没有找到         if (error || placemarks.count==0) {             self.detailAddressLabel.text=@"你输入的地址没找到，可能在月球上";         }else   //  编码成功，找到了具体的位置信息         {             //打印查看找到的所有的位置信息                 /*                     name:名称                     locality:城市                     country:国家                     postalCode:邮政编码                  */             for (CLPlacemark *placemark in placemarks) {                 NSLog(@"name=%@ locality=%@ country=%@ postalCode=%@",placemark.name,placemark.locality,placemark.country,placemark.postalCode);             }                         //取出获取的地理信息数组中的第一个显示在界面上             CLPlacemark *firstPlacemark=[placemarks firstObject];             //详细地址名称             self.detailAddressLabel.text=firstPlacemark.name;             //纬度             CLLocationDegrees latitude=firstPlacemark.location.coordinate.latitude;             //经度             CLLocationDegrees longitude=firstPlacemark.location.coordinate.longitude;             self.latitudeLabel.text=[NSString stringWithFormat:@"%.2f",latitude];             self.longitudeLabel.text=[NSString stringWithFormat:@"%.2f",longitude];         }     }]; } /**  *  反地理编码：经纬度坐标—>地名  */ - (IBAction)reverseGeocode {     //1.获得输入的经纬度     NSString *longtitudeText=self.longitudeField.text;     NSString *latitudeText=self.latitudeField.text;     if (longtitudeText.length==0||latitudeText.length==0) return;         CLLocationDegrees latitude=[latitudeText doubleValue];     CLLocationDegrees longitude=[longtitudeText doubleValue];         CLLocation *location=[[CLLocation alloc]initWithLatitude:latitude longitude:longitude];     //2.反地理编码     [self.geocoder reverseGeocodeLocation:location completionHandler:^(NSArray *placemarks, NSError *error) {         if (error||placemarks.count==0) {             self.reverdeDetailAddressLabel.text=@"你输入的地址没找到，可能在月球上";         }else//编码成功         {             //显示最前面的地标信息             CLPlacemark *firstPlacemark=[placemarks firstObject];             self.reverdeDetailAddressLabel.text=firstPlacemark.name;             //经纬度             CLLocationDegrees latitude=firstPlacemark.location.coordinate.latitude;             CLLocationDegrees longitude=firstPlacemark.location.coordinate.longitude;             self.latitudeField.text=[NSString stringWithFormat:@"%.2f",latitude];             self.longitudeField.text=[NSString stringWithFormat:@"%.2f",longitude];         }     }]; } -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {     [self.view endEditing:YES]; } @end