Location and map: locate and obtain the device location

First, join the core location framework to obtain the geographical location of the device through the classes included in the Framework.

When using the location service, you must add corelocation. Framework

# Impart <corelocation/corelocation. h>

Note:

1. When using the map service, many other devices will consume power. Therefore, after obtaining the device location, you should stop positioning to save light.

2. Set the location service as a global variable

. H file

#import <UIKit/UIKit.h>#import <CoreLocation/CoreLocation.h>@interface AppDelegate : UIResponder <UIApplicationDelegate,CLLocationManagerDelegate>@property (strong, nonatomic) UIWindow *window;@property (strong,nonatomic) CLLocationManager *locationManager;@end

In the. M file

// Initialize the location service self. locationmanager = [[cllocationmanager alloc] init]; // The cllocationmanager object is required to return all information [_ locationmanager setdistancefilter: kcldistancefilternone]; // you can specify the longitude parameter [_ locationmanager setdesiredaccuracy: // sets the proxy; _ locationmanager. delegate = self; // start real-time locating [_ locationmanager startupdatinglocation];

Running proxy method

-(Void) locationmanager :( cllocationmanager *) manager didupdatelocations :( nsarray *) locations {cllocation * newlocation = [locations objectatindex: 0]; // obtain new longitude and latitude metrics coordinate = newlocation. coordinate; nslog (@ "longitude: % F, latitude: % F", coordinate. longpolling, coordinate. latitude); [Manager stopupdatinglocation];}

You can use the simulator to debug your own location to obtain the current location.

The output result is:

Location and map: locate and obtain the device location