ios系统地图定位及编码和反编码,热点检索

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定位

//定位的框架

#import <CoreLocation/CoreLocation.h>

 

@interface ViewController ()<CLLocationManagerDelegate>

{

    CLLocationManager * locationManager;

}

@end

 

@implementation ViewController

 

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    

    //定位管理器

    locationManager = [[CLLocationManager alloc]init];

    // 设置精度 ,精确度越高越费电

    

//    extern const CLLocationAccuracy kCLLocationAccuracyBest;

//    extern const CLLocationAccuracy kCLLocationAccuracyNearestTenMeters;

//    extern const CLLocationAccuracy kCLLocationAccuracyHundredMeters;

//    extern const CLLocationAccuracy kCLLocationAccuracyKilometer;

//    extern const CLLocationAccuracy kCLLocationAccuracyThreeKilometers;

    

    locationManager.desiredAccuracy = kCLLocationAccuracyBest ;

    

    //每隔多少米定一次位置

    locationManager.distanceFilter = 100;

    

    //iOS 8 必须要请求定位权限，还得在info.plist文件中增加对应权限的key。

    //一直定位权限 NSLocationAlwaysUsageDescription

    //使用时定位权限NSLocationWhenInUseUsageDescription

    

//    [locationManager requestAlwaysAuthorization];

    

    if([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0) {

        //请求定位权限（iOS8以后才出现的方法） 需要判断版本号，

            [locationManager requestWhenInUseAuthorization];

    }

    

    //设置代理

    locationManager.delegate = self;

    

    //启动定位

    [locationManager startUpdatingLocation];

    

 

}

 

//用户更新的位置

- (void)locationManager:(CLLocationManager *)manager

     didUpdateLocations:(NSArray<CLLocation *> *)locations {

    NSLog(@"%@",locations);

    //拿到用户的位置

    CLLocation *currentLocation = [locations lastObject];

    

    //经纬度信息

    NSLog(@"%f %f",currentLocation.coordinate.longitude,currentLocation.coordinate.latitude);

        

}

 /////////////////

编码和反编码

//定位的框架

#import <CoreLocation/CoreLocation.h>

 

@interface ViewController ()<CLLocationManagerDelegate>

{

    CLLocationManager * locationManager;

}

@end

 

@implementation ViewController

 

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    

    //定位管理器

    locationManager = [[CLLocationManager alloc] init];

    // 设置精度 ,精确度越高越费电

    

//    extern const CLLocationAccuracy kCLLocationAccuracyBest;

//    extern const CLLocationAccuracy kCLLocationAccuracyNearestTenMeters;

//    extern const CLLocationAccuracy kCLLocationAccuracyHundredMeters;

//    extern const CLLocationAccuracy kCLLocationAccuracyKilometer;

//    extern const CLLocationAccuracy kCLLocationAccuracyThreeKilometers;

    

    locationManager.desiredAccuracy = kCLLocationAccuracyBest ;

    

    //每隔多少米定一次位置

    locationManager.distanceFilter = 100;

    

    //iOS 8 必须要请求定位权限，还得在info.plist文件中增加对应权限的key。

    //一直定位权限 NSLocationAlwaysUsageDescription

    //使用时定位权限NSLocationWhenInUseUsageDescription

    

//    [locationManager requestAlwaysAuthorization];

    

    if([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0) {

        //请求定位权限（iOS8以后才出现的方法） 需要判断版本号，

            [locationManager requestWhenInUseAuthorization];

    }

    

    

    //设置代理

    locationManager.delegate = self;

    

    //启动定位

    [locationManager startUpdatingLocation];

    

    

    

 

    //地理编码

    CLGeocoder *geoCoder = [[CLGeocoder alloc] init];

    [geoCoder geocodeAddressString:@"河南省郑州二七区二七塔" completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {

        if (error != nil || placemarks.count == 0) {

            NSLog(@"编码失败了");

            return ;

        }

        CLPlacemark *pm = [placemarks lastObject];

//        pm.location.coordinate.latitude;

        

        NSLog(@"经纬度 %f %f",pm.location.coordinate.longitude,pm.location.coordinate.latitude);

        

    }];

    

    

    

}

 

//用户更新的位置

- (void)locationManager:(CLLocationManager *)manager

     didUpdateLocations:(NSArray<CLLocation *> *)locations {

    NSLog(@"%@",locations);

    //拿到用户的位置

    CLLocation *currentLocation = [locations lastObject];

    

    //经纬度信息

    NSLog(@"%f %f",currentLocation.coordinate.longitude,currentLocation.coordinate.latitude);

    

    // 地理编码 （中文地址信息-》经纬度）和反地理编码（经纬度-》详细地址信息）

    

    CLGeocoder *geoCoder = [[CLGeocoder alloc]init];

    //反地理编码

    [geoCoder reverseGeocodeLocation:currentLocation completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {

        //编码结果 CLPlacemark（地标，位置标识）

        

        

        if (error != nil || placemarks.count == 0) {

            NSLog(@"编码失败");

            return ;

        }

//        NSLog(@"%@",placemarks);

        CLPlacemark *placeMark = [placemarks lastObject];

        

        NSLog(@"(市)%@%@  (省)%@  详细的地址信息%@",placeMark.locality ,placeMark.addressDictionary,placeMark.administrativeArea,placeMark.name);

       

    }];

    

}

热点检索

//搜索按钮事件

- (void)btnSearchPressed:(UIButton*)btn {

    //创建热点搜索（POI检索）的请求

    MKLocalSearchRequest *request = [[MKLocalSearchRequest alloc] init] ;

    //设置搜索关键字

    request.naturalLanguageQuery = btn.currentTitle;

    //设置搜索范围

    request.region =  self.mapView.region;

    

    //创建搜索对象

    MKLocalSearch *search = [[MKLocalSearch alloc] initWithRequest:request];

    [search startWithCompletionHandler:^(MKLocalSearchResponse * _Nullable response, NSError * _Nullable error) {

        if (error != nil || response.mapItems.count == 0) {

            NSLog(@"没有搜索结果");

            return ;

        }

        

        [response.mapItems enumerateObjectsUsingBlock:^(MKMapItem * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {

            obj.placemark;

            //热点名称，一家公司 店铺

            obj.name;

            NSLog(@"%@",obj.name);

            //电话%

            obj.phoneNumber;

            

            

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

            annotation.coordinate = obj.placemark.coordinate;

            annotation.title = obj.name;

            

            //title 酒店

            if ([btn.currentTitle isEqualToString:@"酒店"]) {

                annotation.imageName = @"category_3";

 

            }

            

            [self.mapView addAnnotation:annotation];

            

        }];

        

    }];

    

}