IOS定位操作

简介

在IOS中通过CoreLocation定位，可以获取到用户当前位置，同时能得到装置移动信息。

实例步骤

1、创建一个简单的View based application（视图应用程序）。

2、择项目文件，然后选择目标，然后添加CoreLocation.framework,如下所示

3、在ViewController.xib中添加两个标签，创建ibOutlet名为latitudeLabel和longtitudeLabel的标签

4、现在通过选择" File-> New -> File... -> "选择Objective C class 并单击下一步

5、把"sub class of"作为NSObject，将类命名为LocationHandler

6、选择创建

7、更新LocationHandler.h，如下所示

#import <Foundation/Foundation.h>#import <CoreLocation/CoreLocation.h>@protocol LocationHandlerDelegate <NSObject>@required-(void) didUpdateToLocation:(CLLocation*)newLocation  fromLocation:(CLLocation*)oldLocation;@end@interface LocationHandler : NSObject<CLLocationManagerDelegate>{    CLLocationManager *locationManager;}@property(nonatomic,strong) id<LocationHandlerDelegate> delegate;+(id)getSharedInstance;-(void)startUpdating;-(void) stopUpdating;@end

8、更新LocationHandler.m,如下所示

#import "LocationHandler.h"static LocationHandler *DefaultManager = nil;@interface LocationHandler()-(void)initiate;@end@implementation LocationHandler+(id)getSharedInstance{    if (!DefaultManager) {        DefaultManager = [[self allocWithZone:NULL]init];        [DefaultManager initiate];    }    return DefaultManager;}-(void)initiate{    locationManager = [[CLLocationManager alloc]init];    locationManager.delegate = self;}-(void)startUpdating{    [locationManager startUpdatingLocation];}-(void) stopUpdating{    [locationManager stopUpdatingLocation];}-(void)locationManager:(CLLocationManager *)manager didUpdateToLocation: (CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation{    if ([self.delegate respondsToSelector:@selector    (didUpdateToLocation:fromLocation:)])     {        [self.delegate didUpdateToLocation:oldLocation         fromLocation:newLocation];    }}@end

9、更新ViewController.h,如下所示

#import <UIKit/UIKit.h>#import "LocationHandler.h"@interface ViewController : UIViewController<LocationHandlerDelegate>{    IBOutlet UILabel *latitudeLabel;    IBOutlet UILabel *longitudeLabel;}@end

10、更新ViewController.m,如下所示

#import "ViewController.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad{    [super viewDidLoad];    [[LocationHandler getSharedInstance]setDelegate:self];    [[LocationHandler getSharedInstance]startUpdating];}- (void)didReceiveMemoryWarning{    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}-(void)didUpdateToLocation:(CLLocation *)newLocation  fromLocation:(CLLocation *)oldLocation{    [latitudeLabel setText:[NSString stringWithFormat:    @"Latitude: %f",newLocation.coordinate.latitude]];    [longitudeLabel setText:[NSString stringWithFormat:    @"Longitude: %f",newLocation.coordinate.longitude]];}@end

输出

当我们运行该应用程序，会得到如下的输出: