获取手机定位 在需要时候 提示

先添加Corelocation.framework框架

在info.plist中添加

Privacy - Location When In Use Usage Description        string -需要你的同意 才能访问位置

在APPdelegate.m中  这里 启动的时候提示一次

#import <CoreLocation/CoreLocation.h>  

添加代理CLLocationManagerDelegate

@property(nonatomic,strong)CLLocationManager *locationManager;

 

if ([CLLocationManager locationServicesEnabled]) {

        _locationManager = [[CLLocationManager alloc]init];

        _locationManager.delegate = self;

        [_locationManager requestAlwaysAuthorization];

        

        [_locationManager requestWhenInUseAuthorization]；      

        //设置寻址精度

        _locationManager.desiredAccuracy = kCLLocationAccuracyBest;

        _locationManager.distanceFilter = 5.0;

        [_locationManager startUpdatingLocation];

    }

   如果没有开启定位 

在需要定位的地方 

#import <CoreLocation/CoreLocation.h>  

添加代理CLLocationManagerDelegate

@property(nonatomic,strong)CLLocationManager *locationManager;//定位

  if ([CLLocationManager locationServicesEnabled]) {

        _locationManager = [[CLLocationManager alloc]init];

        _locationManager.delegate = self;

        [_locationManager requestAlwaysAuthorization];

        [_locationManager requestWhenInUseAuthorization];

        //设置寻址精度

        _locationManager.desiredAccuracy = kCLLocationAccuracyBest;

        _locationManager.distanceFilter = 5.0;

        [_locationManager startUpdatingLocation];

    }

#pragma mark ------定位失败

/*地位失败则执行此代理方法*/

/*定位失败弹出提示窗，点击打开定位按钮 按钮，会打开系统设置，提示打开定位服务*/

-(void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error{

    /*设置提示提示用户打开定位服务*/

    UIAlertController * alert = [UIAlertController alertControllerWithTitle:@"获取定位才能创建简历" message:@"请在设置中打开定位" preferredStyle:UIAlertControllerStyleAlert];

    UIAlertAction * ok =[UIAlertAction actionWithTitle:@"打开定位" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {

        /*打开定位设置*/

        NSURL * settingsURL = [NSURL URLWithString:UIApplicationOpenSettingsURLString];

        [[UIApplication sharedApplication]openURL:settingsURL];

    }];

    UIAlertAction * cacel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {

        

    }];

    [alert addAction:ok];

    [alert addAction:cacel];

    [self presentViewController:alert animated:YES completion:nil];

}

/*定位成功后则执行此代理方法*/

#pragma mark 定位成功

-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations{

    [_locationManager stopUpdatingLocation];

    /*旧值*/

    CLLocation * currentLocation = [locations lastObject];

    // CLGeocoder * geoCoder = [[CLGeocoder alloc]init];

    /*打印当前经纬度*/

    NSLog(@"%f%f",currentLocation.coordinate.latitude,currentLocation.coordinate.longitude);

    

    latitudeStr = [NSString stringWithFormat:@"%f",currentLocation.coordinate.latitude];

    longitudeStr = [NSString stringWithFormat:@"%f",currentLocation.coordinate.longitude];

    

}

 在需要的地方写下

        if (latitudeStr == nil) {

            /*设置提示提示用户打开定位服务*/

            UIAlertController * alert = [UIAlertController alertControllerWithTitle:@"获取定位才能创建简历" message:@"请在设置中打开定位" preferredStyle:UIAlertControllerStyleAlert];

            UIAlertAction * ok =[UIAlertAction actionWithTitle:@"打开定位" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {

                /*打开定位设置*/

                NSURL * settingsURL = [NSURL URLWithString:UIApplicationOpenSettingsURLString];

                [[UIApplication sharedApplication]openURL:settingsURL];

            }];

            UIAlertAction * cacel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {

    

            }];

            [alert addAction:ok];

            [alert addAction:cacel];

            [self presentViewController:alert animated:YES completion:nil];

    

            return;

        }