获取经纬度

//1.导入头文件
#import <CoreLocation/CoreLocation.h>
//2.设置代理CLLocationManagerDelegate
@interface ShopMyInfoViewController ()<CLLocationManagerDelegate>
//3.viewDidLoad中调用getJingWeiDu方法
//4、自动调代理方法 locationManager
// 经纬度
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
    NSLog(@"经度%f,纬度%f",newLocation.coordinate.longitude, newLocation.coordinate.latitude);
    [[UserModel sharedInstanced]setlongitude:[NSString stringWithFormat:@"%f",newLocation.coordinate.longitude]];
    [[UserModel sharedInstanced]setlatitude:[NSString stringWithFormat:@"%f",newLocation.coordinate.latitude]];
    //一直定位
    [manager stopUpdatingLocation];
}
- (void)getJingWeiDu{
    self.locationManager=[[CLLocationManager alloc]init];
    //期望精度
    self.locationManager.desiredAccuracy=kCLLocationAccuracyBest;
    //大约变化10米更新一次
    //    self.locationManager.distanceFilter=10;
    //认证NSLocationAlwaysUsageDescription
    if([[UIDevice currentDevice] systemVersion].doubleValue>8.0)//如果ios是8.0以上版本
    {
        if([self.locationManager respondsToSelector:@selector(requestAlwaysAuthorization)])//位置管理对象中有requestAlwaysAuthorization这个行为
        {
            //运行
            [self.locationManager requestAlwaysAuthorization];
        }
    }
    
    self.locationManager.delegate=self;
    [self.locationManager startUpdatingLocation];
}