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////  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