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:
