ios开发之 -- 调用系统定位获取当前经纬度与地理信息
ios 10定位:
在info.plist中加入:
//允许在前台使用时获取GPS的描述
定位权限:Privacy - Location When In Use Usage Description
//允许永久使用GPS描述
定位权限: Privacy - Location Always Usage Description
如下图:
然后再添加framework包,如下图:
代码如下:
1,导入系统文件,代理:
#import <CoreLocation/CoreLocation.h>
@interface MainViewController ()<CLLocationManagerDelegate
2,声明全局变量
@interface MainViewController ()<CLLocationManagerDelegate> { CLLocationManager *locationmanager;//定位服务 NSString *currentCity;//当前城市 NSString *strlatitude;//经度 NSString *strlongitude;//纬度 }
3,声明方法:
//获取经纬度 [self getLocation];
4,
-(void)getLocation { //判断定位功能是否打开 if ([CLLocationManager locationServicesEnabled]) { locationmanager = [[CLLocationManager alloc]init]; locationmanager.delegate = self; [locationmanager requestAlwaysAuthorization]; currentCity = [NSString new]; [locationmanager requestWhenInUseAuthorization]; //设置寻址精度 locationmanager.desiredAccuracy = kCLLocationAccuracyBest; locationmanager.distanceFilter = 5.0; [locationmanager startUpdatingLocation]; } }
5,定位失败后的代理方法
#pragma mark CoreLocation delegate (定位失败) //定位失败后调用此代理方法 -(void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error { //设置提示提醒用户打开定位服务 UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"允许定位提示" message:@"请在设置中打开定位" preferredStyle:UIAlertControllerStyleAlert]; UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"打开定位" style:UIAlertActionStyleDefault handler:nil]; UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil]; [alert addAction:okAction]; [alert addAction:cancelAction]; [self presentViewController:alert animated:YES completion:nil]; }
6,定位成功后的代理方法
#pragma mark 定位成功后则执行此代理方法 -(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations { [locationmanager stopUpdatingHeading]; //旧址 CLLocation *currentLocation = [locations lastObject]; CLGeocoder *geoCoder = [[CLGeocoder alloc]init]; //打印当前的经度与纬度 NSLog(@"%f,%f",currentLocation.coordinate.latitude,currentLocation.coordinate.longitude); //反地理编码 [geoCoder reverseGeocodeLocation:currentLocation completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) { if (placemarks.count > 0) { CLPlacemark *placeMark = placemarks[0]; currentCity = placeMark.locality; if (!currentCity) { currentCity = @"无法定位当前城市"; } /*看需求定义一个全局变量来接收赋值*/ NSLog(@"----%@",placeMark.country);//当前国家 NSLog(@"%@",currentCity);//当前的城市 // NSLog(@"%@",placeMark.subLocality);//当前的位置 // NSLog(@"%@",placeMark.thoroughfare);//当前街道 // NSLog(@"%@",placeMark.name);//具体地址 } }]; }
打印如下:
定位服务,最好在真机上运行,模拟器也可以,不过很坑,也很不准确!
本文来自博客园,作者:稻草人11223,转载请注明原文链接:https://www.cnblogs.com/hero11223/p/6694801.html