iOS地图定位使用几个小功能

标签：地图   定位   ios定位   iosdevtip   corelocation   

	@interface ViewController ()<CLLocationManagerDelegate>
	{
	    CLLocationManager *_locationManager;
	}
	
	@end

- (void)startLocating
	{
	    if([CLLocationManager locationServicesEnabled])
	    {
	        _locationManager = [[CLLocationManager alloc] init];
	        //设置定位的精度
	        [_locationManager setDesiredAccuracy:kCLLocationAccuracyBest];
	        _locationManager.distanceFilter = 100.0f;
	        _locationManager.delegate = self;
	        if ([[[UIDevice currentDevice] systemVersion] floatValue] > 8.0)
	        {
	            [_locationManager requestAlwaysAuthorization];
	            [_locationManager requestWhenInUseAuthorization];
	        }
	        //开始实时定位
	        [_locationManager startUpdatingLocation];
	    }
	}

-(void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
	{
	    NSLog(@"Longitude = %f", manager.location.coordinate.longitude);
	    NSLog(@"Latitude = %f", manager.location.coordinate.latitude);
	    [_locationManager stopUpdatingLocation];
	}

-(void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
	{
	    NSLog(@"Longitude = %f", manager.location.coordinate.longitude);
	    NSLog(@"Latitude = %f", manager.location.coordinate.latitude);
	    [_locationManager stopUpdatingLocation];
	    
	    CLGeocoder * geoCoder = [[CLGeocoder alloc] init];
	    [geoCoder reverseGeocodeLocation:manager.location completionHandler:^(NSArray *placemarks, NSError *error) {
	        for (CLPlacemark * placemark in placemarks) {
	            NSDictionary *test = [placemark addressDictionary];
	            //  Country(国家)  State(城市)  SubLocality(区)
	            NSLog(@"%@", [test objectForKey:@"Country"]);
	            NSLog(@"%@", [test objectForKey:@"State"]);
	            NSLog(@"%@", [test objectForKey:@"SubLocality"]);
	            NSLog(@"%@", [test objectForKey:@"Street"]);
	        }
	    }];
	
	}

获取某一个地点的经纬度

- (void)getLongitudeAndLatitudeWithCity:(NSString *)city
	{
	    //city可以为中文
	    NSString *oreillyAddress = city;
	    CLGeocoder *myGeocoder = [[CLGeocoder alloc] init];
	    [myGeocoder geocodeAddressString:oreillyAddress completionHandler:^(NSArray *placemarks, NSError *error) {
	        if ([placemarks count] > 0 && error == nil)
	        {
	            NSLog(@"Found %lu placemark(s).", (unsigned long)[placemarks count]);
	            CLPlacemark *firstPlacemark = [placemarks objectAtIndex:0];
	            NSLog(@"Longitude = %f", firstPlacemark.location.coordinate.longitude);
	            NSLog(@"Latitude = %f", firstPlacemark.location.coordinate.latitude);
	        }
	        else if ([placemarks count] == 0 && error == nil)
	        {
	            NSLog(@"Found no placemarks.");
	        }
	        else if (error != nil)
	        {
	            NSLog(@"An error occurred = %@", error);
	        }
	    }];
	}

- (double)distanceByLongitude:(double)longitude1 latitude:(double)latitude1 longitude:(double)longitude2 latitude:(double)latitude2{
	    CLLocation* curLocation = [[CLLocation alloc] initWithLatitude:latitude1 longitude:longitude1];
	    CLLocation* otherLocation = [[CLLocation alloc] initWithLatitude:latitude2 longitude:longitude2];
	    double distance  = [curLocation distanceFromLocation:otherLocation];//单位是m
	    return distance;
	}

    double distance = [self distanceByLongitude:116.405285 latitude:39.904989 longitude:121.472644 latitude:31.231706];
    NSLog(@"Latitude = %f", distance);

	distance = 1066449.749194

iOSDevTip

iOS地图定位使用几个小功能

标签：地图   定位   ios定位   iosdevtip   corelocation   

原文地址：http://blog.csdn.net/iosdevtip/article/details/45717975