MapKit 中特定位置的海拔高度

Question

I've got an issue to get an altitude for specific location pointed on the Apple Map. To obtain the altitude I use the following code:

self.touchPointLocation = CLLocation(latitude: newCoordinate.latitude, longitude: newCoordinate.longitude)
let altutide: CLLocationDistance = self.touchPointLocation.altitude

Every time I run the application on the device I get altitude for pointed location 0.0.

Does anybody know how to get around this problem?

Answer 1

I am pretty sure if you are indoors you cannot get altitude readings(indoors device uses cell tower/WIFI location). Try testing your code on a real device outdoors. You need the GPS reading to get an altitude reading.

I had a similar problem with my code, drove me nuts(2-3 hours). Then I was outside for a fag, tried again on real device. Poof, it worked.