调用系统地图进行导航

 1 #import "MapViewController.h"
 2 #import <MapKit/MapKit.h>
 3 
 4 @interface MapViewController ()
 5 
 6 @property (nonatomic, strong) CLGeocoder *geocoder;
 7 
 8 @end
 9 
10 @implementation MapViewController
11 
12 //懒加载
13 - (CLGeocoder *)geocoder {
14     if (!_geocoder) {
15         _geocoder = [[CLGeocoder alloc] init];
16     }
17     return _geocoder;
18 }
19 
20 - (void)viewDidLoad {
21     [super viewDidLoad];
22     [self.geocoder geocodeAddressString:@"北京" completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
23        CLPlacemark *beginMark = [placemarks firstObject];
24         [self.geocoder geocodeAddressString:@"上海" completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
25             CLPlacemark *endMark = [placemarks firstObject];
26             [self beginWithMarks:(CLPlacemark *)beginMark andMark:(CLPlacemark *)endMark];
27             
28         }];
29     }];
30    }
31 //自定义导航方法的实现
32 - (void)beginWithMarks:(CLPlacemark *)beginMark andMark:(CLPlacemark *)endMark {
33     //创建openMapsWithItems方法所需数组；因为没有直接创建CLPlacemark类的对象，所以使用上面地理编码的方法间接创建出CLPlacemark类的对象
34     MKPlacemark *MKmarkB = [[MKPlacemark alloc] initWithPlacemark:beginMark];
35     MKMapItem *beginI = [[MKMapItem alloc] initWithPlacemark:MKmarkB];
36     
37     MKPlacemark *MKmarkD = [[MKPlacemark alloc] initWithPlacemark:endMark];
38     MKMapItem *endI = [[MKMapItem alloc] initWithPlacemark:MKmarkD];
39     //起点和终点
40     NSArray *array = @[beginI,endI];
41     //创建openMapsWithItems方法所需字典
42     NSDictionary *dict = @{//导航方式
43                            MKLaunchOptionsDirectionsModeKey : MKLaunchOptionsDirectionsModeDriving,
44                            //地图模式
45                            MKLaunchOptionsMapTypeKey : @(MKMapTypeHybrid),
46                            //是否显示交通
47                            MKLaunchOptionsShowsTrafficKey : @(YES)
48                            };
49     //只需记住该行方法，从下往上推，用到什么创建什么
50     [MKMapItem openMapsWithItems:array launchOptions:dict];
51 }
52 
53 @end