我的输入是纬度和经度.我需要使用swift的reverseGeocodeLocation函数,给我本地的输出.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
看来CLLocationCoordinate2DMake功能失败,这会导致reverseGeocodeLocation函数中的致命错误.我把这个格式弄糟了吗？
解决方法
你永远不会反转地理编码的位置,但你通过manager.location.
看到：
CLGeocoder().reverseGeocodeLocation(manager.location,…
我认为这是一个复制和粘贴错误,这是一个问题 – 代码本身看起来不错 – 几乎;)
工作代码
var longitude :CLLocationdegrees = -122.0312186
var latitude :CLLocationdegrees = 37.33233141
var location = CLLocation(latitude: latitude,longitude: longitude) //changed!!!
println(location)
CLGeocoder().reverseGeocodeLocation(location,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")
}
})