iOS 地理编码和反地理编码

1.UI搭建,import头文件

#import <CoreLocation/CoreLocation.h>

 

2.添加成员变量,并连线

 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;

 

3.添加地理编码和反地理编码的方法

 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 *)event

16 {

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 }