ios 定位当前位置

iOS定位当前城市

1、首先在plist表里边添加Privacy - Location Usage Description和NSLocationWhenInUseUsageDescription（这个是在程序使用期间进行定位，如果需要一直获取，添加NSLocationAlwaysUsageDescription），都为String类型

2、其次在.m中引入CoreLocation/CoreLocation.h头文件，并且遵循CLLocationManagerDelegate代理。然后定义一个CLLocationManager对象，代码如下：

#import"CoreLocation/CoreLocation.h"

@interfaceViewController () 

@property (strong, nonatomic) CLLocationManager*locationManager;

@end

if ([CLLocationManager locationServicesEnabled]) {//判断定位操作是否被允许

self.locationManager = [[CLLocationManager alloc] init];

self.locationManager.delegate = self;//遵循代理

self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;

self.locationManager.distanceFilter = 10.0f;

[_locationManager requestWhenInUseAuthorization];//使用程序其间允许访问位置数据（iOS8以上版本定位需要）

[self.locationManager startUpdatingLocation];//开始定位

}else{//不能定位用户的位置的情况再次进行判断，并给与用户提示

//1.提醒用户检查当前的网络状况

//2.提醒用户打开定位开关

}

}

#pragma mark === 定位代理方法

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

//当前所在城市的坐标值

CLLocation *currLocation = [locations lastObject];

NSLog(@"经度=%f 纬度=%f 高度=%f", currLocation.coordinate.latitude, currLocation.coordinate.longitude, currLocation.altitude);

//根据经纬度反向地理编译出地址信息

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

[geoCoder reverseGeocodeLocation:currLocation completionHandler:^(NSArray *placemarks, NSError *error) {

for (CLPlacemark * placemark in placemarks) {

NSDictionary *address = [placemark addressDictionary];

//  Country(国家)  State(省)  City（市）

NSLog(@"#####%@",address);

NSLog(@"%@", [address objectForKey:@"Country"]);

NSLog(@"%@", [address objectForKey:@"State"]);

NSLog(@"%@", [address objectForKey:@"City"]);

self.cllocationCity =[address objectForKey:@"City"];

}

}];

}

//定位失败弹出提示框,点击"打开定位"按钮,会打开系统的设置,提示打开定位服务

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

UIAlertController * alertVC = [UIAlertController alertControllerWithTitle:@"允许\"定位\"提示" 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 * cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {

}];

[alertVC addAction:cancel];

[alertVC addAction:ok];

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

}