地图使用-----MapKit介绍

#import <MapKit/MapKit.h>

@interface MyAnnotation : NSObject <MKAnnotation>

/** 坐标位置 */

@property (nonatomic, assign) CLLocationCoordinate2D coordinate;

/** 标题 */

@property (nonatomic, copy) NSString *title; 

/** 子标题 */

@property (nonatomic, copy) NSString *subtitle; 

@end

MyAnnotation *anno = [[MyAnnotation alloc] init];

anno.title = @“如家酒店”;

anno.subtitle = @“长安街88888号”;

anno.coordinate = CLLocationCoordinate2DMake(40, 116);

[self.mapView addAnnotation:anno];

- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation

{

    // 判断annotation的类型

    if (![annotation isKindOfClass:[BaseAnnotation class]]) return nil;

    

    // 创建MKAnnotationView，可复用的控件

    static NSString *ID = @“Hotel”;

    MKAnnotationView *annoView = [mapView dequeueReusableAnnotationViewWithIdentifier:ID];

    if (annoView == nil) {

        annoView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:ID];   

// 是否可显示大头针弹框

annoView.canShowCallout = YES;

    }

    // 传递模型数据

    annoView.annotation = annotation;

    // 设置图片（图片在另外的模型中）

    BaseAnnotation * baseAnnotation = annotation;

    annoView.image = [UIImage imageNamed:baseAnnotation.icon];

    return annoView;

}

#import "ViewController.h"
#import <MapKit/MapKit.h>
#import <CoreLocation/CoreLocation.h>
@interface ViewController ()
@property (nonatomic, strong) CLGeocoder *geocoder;
@end

@implementation ViewController
- (CLGeocoder *)geocoder
{
    if (!_geocoder) {
        _geocoder = [[CLGeocoder alloc]init];
    }
    return _geocoder;
}

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
    // 设定：北京  到  广州
    
    [self.geocoder geocodeAddressString:@"上海" completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
        
        MKPlacemark *plmk = [[MKPlacemark alloc]initWithPlacemark:[placemarks firstObject]];
        
        MKMapItem *item1 = [[MKMapItem alloc]initWithPlacemark:plmk];
        
        
        [self.geocoder geocodeAddressString:@"四川" completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
            
            MKPlacemark *plmkgz = [[MKPlacemark alloc]initWithPlacemark:[placemarks firstObject]];
            
            
            MKMapItem *item2 = [[MKMapItem alloc]initWithPlacemark:plmkgz];
            
            
            //设置参数字典：交通方式，地图样式、显示路况方式等等
            NSDictionary *dict = @{MKLaunchOptionsDirectionsModeKey : MKLaunchOptionsDirectionsModeDriving,MKLaunchOptionsMapTypeKey : @2};
            

		    //参数1 数组  存放的是起点和终点  参数2  步行 驾车  是否显示交通路况等

            [MKMapItem openMapsWithItems:@[item1,item2] launchOptions:dict];
        }];
        
    }];
}

@end

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

@interface ViewController ()<MKMapViewDelegate>
@property (weak, nonatomic) IBOutlet MKMapView *mapView;
@property (nonatomic, strong) CLGeocoder *geoCoder;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    self.mapView.delegate = self;
    self.geoCoder = [[CLGeocoder alloc]init];
    [self.geoCoder geocodeAddressString:@"北京" completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
        MKPlacemark *mkplgz = [[MKPlacemark alloc]initWithPlacemark:[placemarks firstObject]];
     
        [self.geoCoder geocodeAddressString:@"广州" completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
            // 1.北京  广州
            // 2.颜色  线宽
            MKDirectionsRequest *request = [[MKDirectionsRequest alloc]init];
            
            MKPlacemark *mkplbg = [[MKPlacemark alloc]initWithPlacemark:[placemarks firstObject]];
            request.source = [[MKMapItem alloc]initWithPlacemark:mkplbg];
            request.destination = [[MKMapItem alloc]initWithPlacemark:mkplgz];
            //方向对象
            MKDirections *directions = [[MKDirections alloc]initWithRequest:request];
            //遮盖 蒙版
            //添加遮盖的模型
            
            [directions calculateDirectionsWithCompletionHandler:^(MKDirectionsResponse * _Nullable response, NSError * _Nullable error) {
                
                //response
                //line
                for (MKRoute *route in  response.routes) {
                    
                    [self.mapView addOverlay:route.polyline];

                }
                
            }];
            
        }];

    }];
}
//添加折线模型的时候就会找代理返回一个折线的渲染器来决定线的颜色线宽
- (MKOverlayRenderer *)mapView:(MKMapView *)mapView rendererForOverlay:(id<MKOverlay>)overlay
{

    MKPolylineRenderer *polylineRenderer = [[MKPolylineRenderer alloc]initWithOverlay:overlay];
    
    polylineRenderer.lineWidth = 2;
    
    polylineRenderer.strokeColor = [UIColor orangeColor];
    
    return polylineRenderer;
    
}
@end