我的输入是纬度和经度。我需要使用swift的reverseGeocodeLocation
函数,给我一个本地的输出。我试图使用的代码是
println(geopoint.longitude)
println(geopoint.latitude)
var manager : CLLocationManager!
var longitude :CLLocationDegrees = geopoint.longitude
var latitude :CLLocationDegrees = geopoint.latitude
var location: CLLocationCoordinate2D = CLLocationCoordinate2DMake(latitude, longitude)
println(location)
CLGeocoder().reverseGeocodeLocation(manager.location, completionHandler: {(placemarks, error) -> Void in
println(manager.location)
if error != nil {
println("Reverse geocoder failed with error" + error.localizedDescription)
return
}
if placemarks.count > 0 {
let pm = placemarks[0] as CLPlacemark
println(pm.locality)
}
else {
println("Problem with the data received from geocoder")
}
在我得到的日志中
//-122.0312186
//37.33233141
//C.CLLocationCoordinate2D
//fatal error: unexpectedly found nil while unwrapping an Optional value
似乎CLLocationCoordinate2DMake
函数失败,然后导致reverseGeocodeLocation
函数中的致命错误。我在某个地方搞砸了格式吗?
答案 0 :(得分:66)
你永远不会反转地理编码的位置,但是你传递了manager.location。
请参阅:
CLGeocoder().reverseGeocodeLocation(manager.location, ...
我认为这是一个复制和粘贴错误,这就是问题 - 代码本身看起来很好 - 差不多;)
var longitude :CLLocationDegrees = -122.0312186
var latitude :CLLocationDegrees = 37.33233141
var location = CLLocation(latitude: latitude, longitude: longitude) //changed!!!
println(location)
CLGeocoder().reverseGeocodeLocation(location, completionHandler: {(placemarks, error) -> Void in
println(location)
if error != nil {
println("Reverse geocoder failed with error" + error.localizedDescription)
return
}
if placemarks.count > 0 {
let pm = placemarks[0] as! CLPlacemark
println(pm.locality)
}
else {
println("Problem with the data received from geocoder")
}
})