Question

我试图通过LocationManager抓取坐标。当我在WIFI网络上时，我正在获得完美的位置。但是当我切换到蜂窝数据时，得到不正确的位置（距我当前位置半径500米）。我尝试了所有“desiredAccuracy”的组合但未能得到准确的坐标。任何解决方案？

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

通过蜂窝数据包跟踪时获取错误的坐标

1 个答案: