[x-Code7新功能之四]Core Location和MapKit框架练习

蔚落 2022-08-21 06:45 9阅读 0赞

#import <UIKit/UIKit.h>
    #import <CoreLocation/CoreLocation.h>
    #import <MapKit/MapKit.h>
    
    @interface MyAnnotication : NSObject<MKAnnotation>
    
    @property (nonatomic) CLLocationCoordinate2D coordinate;
    @property (nonatomic, copy) NSString *title;
    @property (nonatomic, copy) NSString *subtitle;
    @end
    
    
    @interface ViewController : UIViewController<CLLocationManagerDelegate,MKMapViewDelegate>
    
    
    @end

#import "ViewController.h"
    
    @implementation MyAnnotication
    
    @end
    
    @interface ViewController ()
    
    @end
    
    @implementation ViewController{
        CLLocationManager* _Manager;
        CLGeocoder* _Geocoder;
        CLLocation* _MyLocation;
        MKMapView* _MapView;
    }
    
    - (void)viewDidLoad {
        [super viewDidLoad];
        _Manager = [[CLLocationManager alloc] init];
        _MapView = [[MKMapView alloc] initWithFrame:[UIScreen mainScreen].bounds];
        _MapView.delegate = self;
        _MapView.userTrackingMode = MKUserTrackingModeFollow;
        [self.view addSubview:_MapView];
        if (![CLLocationManager locationServicesEnabled]) {
            NSLog(@"定位功能还没有打开");
            return;
        }
        CLAuthorizationStatus state = [CLLocationManager authorizationStatus];
        if (state ==kCLAuthorizationStatusNotDetermined){
            [_Manager requestWhenInUseAuthorization];
        }
        else if (state == kCLAuthorizationStatusAuthorizedWhenInUse){
            _Manager.delegate = self;
            _Manager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters;
            CLLocationDistance distance = 10.0;
            _Manager.distanceFilter = distance;
            [_Manager startUpdatingLocation];
        }
        
        
        _Geocoder = [[CLGeocoder alloc] init];
        
        /*地理编码测试*/
    //    [_Geocoder geocodeAddressString:@"昌平区沙河镇" completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
    //        [placemarks enumerateObjectsUsingBlock:^(CLPlacemark * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
    //            CLLocation* Location = obj.location;
    //            CLRegion* Region = obj.region;
    //            NSData* data = [NSJSONSerialization dataWithJSONObject:obj.addressDictionary options:NSJSONWritingPrettyPrinted error:nil];
    //            NSString* str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
    //            NSLog(@"位置:%@,区域:%@,详细信息:%@",Location,Region,str);
    //        }];
    //    }];
    }
    
    -(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations
    {
        _MyLocation = [locations firstObject];
        CLLocationCoordinate2D FirstCoordinate = [_MyLocation coordinate];
        NSLog(@"经度：%f,纬度：%f,海拔：%f,航向：%f,行走速度：%f",FirstCoordinate.longitude,FirstCoordinate.latitude,_MyLocation.altitude,_MyLocation.course,_MyLocation.speed);
        /*地理反编码测试～*/
        [_Geocoder reverseGeocodeLocation:_MyLocation completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
            CLPlacemark *placemark=[placemarks firstObject];
            NSData* data = [NSJSONSerialization dataWithJSONObject:placemark.addressDictionary options:NSJSONWritingPrettyPrinted error:nil];
            NSString* str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
            MyAnnotication *annotation1=[[MyAnnotication alloc]init];
            annotation1.title=[placemark.addressDictionary valueForKey:@"Name"];
            annotation1.subtitle=[placemark.addressDictionary valueForKey:@"SubLocality"];
            annotation1.coordinate=FirstCoordinate;
            [_MapView addAnnotation:annotation1];
            
            /*定位一次后，关闭*/
            [_Manager stopUpdatingLocation];
            NSLog(@"详细信息:%@",str);
        }];
    
    }
    
    -(MKAnnotationView*)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation
    {
        static NSString* ViewIdentifer = @"ViewIdentifer";
        if ([annotation isKindOfClass:[MyAnnotication class]]) {
            MKAnnotationView* AnnotationView = [mapView dequeueReusableAnnotationViewWithIdentifier:ViewIdentifer];
            if (!AnnotationView) {
                AnnotationView = [[MKAnnotationView alloc] initWithAnnotation:annotation
                                                              reuseIdentifier:ViewIdentifer];
                AnnotationView.canShowCallout = YES;/*允许用户点击*/
                AnnotationView.calloutOffset = CGPointMake(0, 1);
                AnnotationView.leftCalloutAccessoryView =[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"J.jpg"]];
                /*如果不设置这个值，什么都看不到～*/
                AnnotationView.image = [UIImage imageNamed:@"J.jpg"];
            }
            return AnnotationView;
        }
        else{
            return nil;
        }
       
    }
    
    - (void)didReceiveMemoryWarning {
        [super didReceiveMemoryWarning];
        // Dispose of any resources that can be recreated.
    }
    
    @end

定位效果还挺理想，不错啊。

想利用这个写个移动签到的小程序。。。

参考：http://www.cnblogs.com/kenshincui/p/4125570.html