通过蜂窝数据包跟踪时获取错误坐标

Question

我正在尝试通过 LocationManager 获取坐标。当我在 WIFI 网络上时，我得到了完美的位置。但是当我切换到蜂窝数据时得到不正确的位置（距离我当前位置 500m 的半径）。我尝试了“desiredAccuracy”的所有组合，但未能获得准确的坐标。有什么解决办法吗？

locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
locationManager.desiredAccuracy = kCLLocationAccuracyBestForNavigation;
currentLocation = nil;
[locationManager startUpdatingLocation];



 - (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation{if(currentLocation != nil)
    currentLocation = NULL;


NSTimeInterval locationAge = -[newLocation.timestamp timeIntervalSinceNow];

NSLog(@"Location age %f", locationAge);

if (locationAge > 0.1) return;


currentLocation = [[CLLocation alloc] initWithLatitude:newLocation.coordinate.latitude longitude:newLocation.coordinate.longitude];
NSLog(@"current location - %@",currentLocation);



NSString *lat =[NSString stringWithFormat:@"%lf",currentLocation.coordinate.latitude];
NSString *lon =[NSString stringWithFormat:@"%lf",currentLocation.coordinate.longitude];

latitudeText.text = lat;
longitudeText.text = lon;
[manager stopUpdatingLocation];}

Answer 1

检查此CLLocationManager responsiveness 但根据 Apple Docs The receiver does its best to achieve the requested accuracy; however, the actual accuracy is not guaranteed. 但 500 米仍然太多