1 导入框架 CoreLocation.framework
2 导入头文件
#import <CoreLocation/CoreLocation.h>
3 遵守代理
<CLLocationManagerDelegate>
4 设置全局属性
@property (strong, nonatomic) CLLocationManager* locationManager;
5 viewdidload里面
[self startLocation];
1 //开始定位 2 -(void)startLocation 3 { 4 self.locationManager = [[CLLocationManager alloc] init]; 5 self.locationManager.delegate = self; 6 self.locationManager.desiredAccuracy = kCLLocationAccuracyBest; 7 self.locationManager.distanceFilter = 10.0f; 8 9 if ([[[UIDevice currentDevice] systemVersion] doubleValue] > 8.0) 10 { 11 //设置定位权限 仅ios8有意义 12 // [self.locationManager requestWhenInUseAuthorization];// 前台定位 13 14 [self.locationManager requestAlwaysAuthorization];// 前后台同时定位 15 } 16 [self.locationManager startUpdatingLocation]; 17 }
6 info.plist增加字段，（ios8 必须要）一般无法弹出获取定位权限的alert的原因就在这
NSLocationWhenInUseUsageDescription //允许在前台获取GPS的描述
NSLocationAlwaysUsageDescription //允许在前、后台获取GPS的描述
此处设置必须和第5步的定位权限对应上，如果是前台定位，就在plist里面NSLocationWhenInUseUsageDescription
并不是 俩项都必须要加
效果图：
7 定位成功后的代理方法
1 //定位代理经纬度回调 2 -(void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation { 3 4 [self.locationManager stopUpdatingLocation]; 5 // NSLog(@"location ok"); 6 // 7 // NSLog(@"%@",[NSString stringWithFormat:@"经度:%3.5f 纬度:%3.5f",newLocation.coordinate.latitude,newLocation.coordinate.longitude]); 8 9 CLGeocoder * geoCoder = [[CLGeocoder alloc] init]; 10 [geoCoder reverseGeocodeLocation:newLocation completionHandler:^(NSArray *placemarks, NSError *error) { 11 for (CLPlacemark * placemark in placemarks) { 12 13 NSDictionary *test = [placemark addressDictionary]; 14 // Country(国家) State(城市) SubLocality(区) 15 self.title = [test objectForKey:@"City"]; 16 } 17 }]; 18 19 }
定位失败的回调：
1 /** 2 * 1 定位失败的回调 3 * 2 或者是用户点击了不允许定位的时候 4 */ 5 - (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error 6 { 7 if ([error code] == kCLErrorDenied) 8 { 9 //访问被拒绝 10 } 11 if ([error code] == kCLErrorLocationUnknown) { 12 //无法获取位置信息 13 } 14 }