Convert String to CLLocationCoordinate2D in swift

string swift converter cllocation cllocationcoordinate2d
Learnin picture Learnin · Feb 9, 2015 · Viewed 12.9k times · Source

using Firebase as my backend, I've got a series of strings that are latitude and longitude coordinates, how can I convert them to CLLocationCoordinate2D so that I can use them for annotations? Here is the code that gets the info from Firebase every time its updated 

var UpdateRef = Firebase(url:"https://ici.firebaseio.com/users")

UpdateRef.observeEventType(.ChildChanged, withBlock: { (snapshot) in
    let MomentaryLatitude = snapshot.value["latitude"] as? String
    let MomentaryLongitude = snapshot.value["longitude"] as? String
    let ID = snapshot.value["ID"] as? String

    println("\(MomentaryLatitude)")

    var Coordinates = CLLocationCoordinate2D(latitude: MomentaryLatitude as
        CLLocationDegrees, longitude: MomentaryLongitude as CLLocationDegrees)

}

The last line doesn't work, what should I use instead?

Answer

fred02138 picture fred02138 · Feb 9, 2015

Use the doubleValue property:

let MomentaryLatitude = (snapshot.value["latitude"] as NSString).doubleValue
let MomentaryLongitude = (snapshot.value["longitude"] as NSString).doubleValue

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