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

#import

@protocol LocationHandlerDelegate

@required

-(void) didUpdateToLocation:(CLLocation*)newLocation

fromLocation:(CLLocation*)oldLocation;

@end

@interface LocationHandler : NSObject

{

CLLocationManager *locationManager;

}

@property(nonatomic,strong) id 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

#import "LocationHandler.h"

@interface ViewController : UIViewController

{

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: