#import <CoreLocation/CoreLocation.h>

 1 - (IBAction)geocodeButton; 2 @property (weak, nonatomic) IBOutlet UITextField *inputAddress; 3 @property (weak, nonatomic) IBOutlet UITextField *longitude; 4 @property (weak, nonatomic) IBOutlet UITextField *latitude; 5 @property (weak, nonatomic) IBOutlet UITextView *detailAddress; 6  7  8 - (IBAction)unGeocodeButton; 9 @property (weak, nonatomic) IBOutlet UITextField *reverseLongitude;10 @property (weak, nonatomic) IBOutlet UITextField *reverseLatitude;11 @property (weak, nonatomic) IBOutlet UITextView *reverseDetailAddress;

 1 /** 2  *  懒加载 3  */ 4 - (CLGeocoder *)geocoder 5 { 6     if (_geocoder == nil) { 7         _geocoder = [[CLGeocoder alloc]init]; 8     } 9     return _geocoder;10 }11 12 /**13  *  键盘处理14  */15 - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event16 {17     [self.view endEditing:YES];18 }19 20 /**21  *  地理编码22  */23 - (IBAction)geocodeButton {24     NSString *address = self.inputAddress.text;25     [self.geocoder geocodeAddressString:address completionHandler:^(NSArray *placemarks, NSError *error) {26         // 地址为空,直接返回27         if (!address) return ;28         if (error) { // 输入的地址有错误29             self.detailAddress.text = @"你输入的地址可能不存在";30         }else{31             // 遍历查询到的地标32             NSLog(@"总共有%d个地标符合要求",placemarks.count);33             for (int i = 0; i < placemarks.count; i++) {34                 CLPlacemark *placemark = placemarks[i];35                 NSLog(@"%@",placemark);36             }37             38             // 取地标数组的第一个为最终结果39             CLPlacemark *placemark = [placemarks firstObject];40             self.detailAddress.text = placemark.name;41             self.latitude.text =[NSString stringWithFormat:@"%.1f", placemark.location.coordinate.latitude];42             self.longitude.text = [NSString stringWithFormat:@"%.1f", placemark.location.coordinate.longitude];43         }44     }];45 }46 47 /**48  *  反地理编码49  */50 - (IBAction)unGeocodeButton {51     // 经纬度转换52     CLLocationDegrees longitude =  [self.reverseLongitude.text doubleValue];53     CLLocationDegrees latitude = [self.reverseLatitude.text doubleValue];54     CLLocation *location = [[CLLocation alloc]initWithLatitude:latitude longitude:longitude];55     56     // 反地理编码57     [self.geocoder reverseGeocodeLocation:location completionHandler:^(NSArray *placemarks, NSError *error) {58         if (location == nil) return;59         if (error) {60             NSLog(@"你输入的经纬度有误");61         }else{62             // 遍历地标数组63             NSLog(@"总共有%d个地标符合要求",placemarks.count);64             for (int i; i < placemarks.count; i++) {65                 CLPlacemark *placemark = placemarks[i];66                 NSLog(@"%@",placemark);67             }68             69             // 取地标数组的第一个为最终结果70             CLPlacemark *placemark =[placemarks firstObject];71             self.reverseDetailAddress.text = placemark.name;72         }73 74     }];75 }