1，框架中新增CoreLocation.framework

2，引入標頭檔案#import <CoreLocation/CoreLocation.h>

3，使用相關協議

@interfaceARWUserMapAnnotationViewController ()<MKMapViewDelegate,CLLocationManagerDelegate>

4，宣告變數

@property (nonatomic, strong) MKMapView *selfMapView;

@property (nonatomic, strong) CLLocationManager *locationManager;       //使用者獲取位置
@property (nonatomic, strong) CLLocation *checkinLocation_MY;          //儲存獲取的位置
 

   self.title = @"Map";

    CGRect frame = [self.view bounds];

    // Map View
    selfMapView = [[MKMapView alloc] initWithFrame:CGRectMake(0, 0, frame.size.width, frame.size.height)];
    selfMapView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
    selfMapView.delegate = self;
    selfMapView.showsUserLocation = YES;
    
    UIBarButtonItem *backFromMapButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:@selector(doButtonBack)];
    self.navigationItem.leftBarButtonItem = backFromMapButtonItem;

    [self.view addSubview:selfMapView];
    
    
    
    //獲取當前位置
    locationManager = [[CLLocationManager alloc] init];
    
    //若開啟了允許獲取當前位置
    if ([CLLocationManager locationServicesEnabled])
    {
        NSLog( @"Starting CLLocationManager" );
        locationManager.delegate = self;
        locationManager.distanceFilter = 200;
        locationManager.desiredAccuracy = kCLLocationAccuracyBest;
        [locationManager startUpdatingLocation];
    }
    //若未開啟
    else
    {
        NSLog( @"Cannot Starting CLLocationManager" );
    }
    
 

#pragma mark - CLLocationManagerDelegate Methods
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation
           fromLocation:(CLLocation *)oldLocation {
    checkinLocation_MY = newLocation;
    
    // Annotations
    [selfMapView addAnnotations:[self annotations]];
    
    //地圖的範圍 越小越精確
    MKCoordinateSpan theSpan;
    theSpan.latitudeDelta=20;
    theSpan.longitudeDelta=20;
    MKCoordinateRegion theRegion;
    theRegion.center=[[locationManager location] coordinate];
    theRegion.span=theSpan;
    [selfMapView setRegion:theRegion];
    
}