系统地图导航(Obj-C)

简单界面搭建:

UI.png

示例代码:

#import "ViewController.h"
#import <MapKit/MapKit.h>

@interface ViewController ()
// 目标地址
@property (weak, nonatomic) IBOutlet UITextField *destination_TF;

@end

@implementation ViewController

// 开始导航按钮点击事件
- (IBAction)navgationBtnClick:(UIButton *)sender {
    
    // 将起点和重点传递给系统地图
    
    // 1.获取起点和终点
    // 起点: 当前定位点
    MKMapItem *sourceItem = [MKMapItem mapItemForCurrentLocation];
    // 终点: 手动输入的地址  地理编码
    CLGeocoder *geocoder = [[CLGeocoder alloc]init];
    [geocoder geocodeAddressString:self.destination_TF.text completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
        
        if (placemarks.count == 0 || error) {
            return ;
        }
        
        CLPlacemark *clPlacemark = placemarks.lastObject;
        MKPlacemark *mkPlacemark = [[MKPlacemark alloc]initWithPlacemark:clPlacemark];
        MKMapItem *destinItem = [[MKMapItem alloc]initWithPlacemark:mkPlacemark];
        
        // 2.打开地图  
        [MKMapItem openMapsWithItems:@[sourceItem,destinItem] launchOptions:@{MKLaunchOptionsDirectionsModeKey:MKLaunchOptionsDirectionsModeDriving,MKLaunchOptionsMapTypeKey:@0}];
        
    }];
}

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

打开地图:

open_map.png

显示导航:

navigation.png

MKMapItem 地图项目属性简介:

 //地标对象
 @property (nonatomic, readonly) MKPlacemark *placemark;
 //地图项目是否在定位点上
 @property (nonatomic, readonly) BOOL isCurrentLocation;
 //商业名称
 @property (nonatomic, copy, nullable) NSString *name;
 //电话
 @property (nonatomic, copy, nullable) NSString *phoneNumber;
 //主页
 @property (nonatomic, strong, nullable) NSURL *url;
 //时区
 @property (nonatomic, copy, nullable) NSTimeZone *timeZone NS_AVAILABLE(10_11, 9_0);
 
 //初始化方法
 + (MKMapItem *)mapItemForCurrentLocation;  //把定位点转化为地图项目
 - (instancetype)initWithPlacemark:(MKPlacemark *)placemark; //根据地标对象进行初始化
 - (BOOL)openInMapsWithLaunchOptions:(nullable NSDictionary<NSString *, id> *)launchOptions __TVOS_PROHIBITED;   //打开系统地图,并且在地图上展示当前的地图项目
 + (BOOL)openMapsWithItems:(NSArray<MKMapItem *> *)mapItems launchOptions:(nullable NSDictionary<NSString *, id> *)launchOptions __TVOS_PROHIBITED;  //打开系统地图,并且在传入的地图项目间进行路线导航
 
 @end
 
 MK_EXTERN NSString * const MKLaunchOptionsDirectionsModeKey     NS_AVAILABLE(10_9, 6_0) __TVOS_PROHIBITED; // 导航模式
 MK_EXTERN NSString * const MKLaunchOptionsMapTypeKey            NS_AVAILABLE(10_9, 6_0) __TVOS_PROHIBITED __WATCHOS_PROHIBITED; // 地图类型
 MK_EXTERN NSString * const MKLaunchOptionsShowsTrafficKey       NS_AVAILABLE(10_9, 6_0) __TVOS_PROHIBITED __WATCHOS_PROHIBITED; // 是否显示交通情况
 
 // 导航模式
 MK_EXTERN NSString * const MKLaunchOptionsDirectionsModeDriving NS_AVAILABLE(10_9, 6_0) __TVOS_PROHIBITED;   驾车
 MK_EXTERN NSString * const MKLaunchOptionsDirectionsModeWalking NS_AVAILABLE(10_9, 6_0) __TVOS_PROHIBITED;   步行
 MK_EXTERN NSString * const MKLaunchOptionsDirectionsModeTransit NS_AVAILABLE(10_11, 9_0) __TVOS_PROHIBITED;    公共交通
 
 // If center and span are present, having a camera as well is undefined
 MK_EXTERN NSString * const MKLaunchOptionsMapCenterKey          NS_AVAILABLE(10_9, 6_0) __TVOS_PROHIBITED; // 地图中心点
 MK_EXTERN NSString * const MKLaunchOptionsMapSpanKey            NS_AVAILABLE(10_9, 6_0) __TVOS_PROHIBITED; // 地图跨度
 
 MK_EXTERN NSString * const MKLaunchOptionsCameraKey             NS_AVAILABLE(10_10, 7_1) __TVOS_PROHIBITED; //  航拍角度