在IOS中使用CLLocation获取用户当前位置
在IOS中使用CLLocation获取用户当前位置
提问于 2015-12-03 16:08:05
我想要获取用户的当前位置&地址，这是我使用CLLocationManager并添加了核心位置框架所做的。但回应是什么也没有。请分享您的评论。
locationManager = [[CLLocationManager alloc] init];
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
locationManager.delegate = self; [locationManager startUpdatingLocation]; 代表们是
(void)locationManager:(CLLocationManager *)manager didFailWithError: (NSError *)error {
NSLog(@"didFailWithError: %@", error);
UIAlertView *errorAlert = [[UIAlertView alloc] initWithTitle:@"Error" message:@"Failed to Get Your Location" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[errorAlert show];
}
(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations {
CLLocation *currentLocation = locations.first;
[locationManager setDelegate:nil];
if (currentLocation != nil) {
NSString *longitudeLabel = [NSString stringWithFormat:@"%.8f", currentLocation.coordinate.longitude];
NSString *latitudeLabel = [NSString stringWithFormat:@"%.8f", currentLocation.coordinate.latitude];
}回答 5
Stack Overflow用户
回答已采纳
发布于 2015-12-03 17:20:27
检查我的代码，您可以从当前位置获取地址
- (void)viewDidLoad {
CLGeocoder *ceo;
self.locationManager = [[CLLocationManager alloc]init];
self.locationManager.delegate = self;
[locationManager startUpdatingLocation];
}
-(void)viewDidAppear:(BOOL)animated{
ceo= [[CLGeocoder alloc]init];
[self.locationManager requestWhenInUseAuthorization];
if ([self.locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]) {
[self.locationManager requestWhenInUseAuthorization];
}
CLLocationCoordinate2D coordinate;
coordinate.latitude=locationManager.location.coordinate.latitude;
coordinate.longitude=locationManager.location.coordinate.longitude;
//CLLocationCoordinate2D ctrpoint;
// ctrpoint.latitude = ;
//ctrpoint.longitude =f1;
//coordinate.latitude=23.6999;
//coordinate.longitude=75.000;
MKPointAnnotation *marker = [MKPointAnnotation new];
marker.coordinate = coordinate;
NSLog(@"%f",coordinate.latitude);
//[self.mapView addAnnotation:marker];
CLLocation *loc = [[CLLocation alloc]initWithLatitude:coordinate.latitude longitude:coordinate.longitude
];
[ceo reverseGeocodeLocation:loc
completionHandler:^(NSArray *placemarks, NSError *error) {
CLPlacemark *placemark = [placemarks objectAtIndex:0];
NSLog(@"placemark %@",placemark);
//String to hold address
NSString *locatedAt = [[placemark.addressDictionary valueForKey:@"FormattedAddressLines"] componentsJoinedByString:@", "];
NSLog(@"addressDictionary %@", placemark.addressDictionary);
NSLog(@"placemark %@",placemark.region);
NSLog(@"placemark %@",placemark.country); // Give Country Name
NSLog(@"placemark %@",placemark.locality); // Extract the city name
NSLog(@"location %@",placemark.name);
NSLog(@"location %@",placemark.ocean);
NSLog(@"location %@",placemark.postalCode);
NSLog(@"location %@",placemark.subLocality);
NSLog(@"location %@",placemark.location);
//Print the location to console
NSLog(@"I am currently at %@",locatedAt);
_City.text=[placemark.addressDictionary objectForKey:@"City"];
[locationManager stopUpdatingLocation];
}
];
}
#pragma mark - CLLocationManagerDelegate请添加这两种方法
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation希望这能行得通
谢谢
Stack Overflow用户
发布于 2015-12-03 16:21:11
您需要添加
"NSLocationAlwaysUsageDescription"
"NSLocationWhenInUseUsageDescription"键输入
包含要显示的消息的Info.plist。
Stack Overflow用户
发布于 2015-12-03 16:16:30
在调用startUpdatingLocation之前，需要先调用请求权限的函数。
locationManager = [[CLLocationManager alloc] init];
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
locationManager.delegate = self;
[locationManager requestWhenInUseAuthorization];
[locationManager startUpdatingLocation];页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/34060722
复制相关文章
相似问题
腾讯云开发者
