iOS 地理编码和反地理编码

1.UI搭建,import头文件

地理编码和反地理编码的UI

#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 }