xcode CLLocationDegrees 到 Swift 中的字符串变量
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CLLocationDegrees to String variable in Swift
提问by Biscuit128
Given that the code
鉴于代码
var latitude = userLocation.coordinate.latitude
returns a CLLocationDegrees Object, how can I store the value in to a variable so that I can apply it as the text of a label.
返回一个 CLLocationDegrees 对象，如何将值存储到变量中，以便我可以将其作为标签文本应用。
I can print the variable to the console without any issues but obviously that doesn't help me too much!
我可以毫无问题地将变量打印到控制台，但显然这对我没有太大帮助！
Looking through the valuable options through the autocomplete i see there is a description;
通过自动完成查看有价值的选项，我看到有一个描述；
var latitude = userLocation.coordinate.latitude.description
But this is returning me null?
但这让我返回空？
Thanks
谢谢
采纳答案by Nikos M.
You can turn it to a String using this code:
您可以使用以下代码将其转换为字符串：
var oneString = String(userLocation.coordinate.latitude)
回答by hedzs
since CLLocationDegrees is just a typedef for Double, you can easily assign it to a string var, ie:
由于 CLLocationDegrees 只是 Double 的 typedef，您可以轻松地将其分配给字符串 var，即：
var latitudeText:String = "\(userLocation.coordinate.latitude)"
回答by zisoft
let latitudeText = String(format: "%f", userLocation.coordinate.latitude)
Set the format paramater to your needs.
根据您的需要设置格式参数。
回答by Josh Goldberg
nothing here worked for me. The closest I got was "Optional(37.8)" for a latitude value, I think because the CLLocationCoordinate2D is an optional class parameter. Here is what I ended up doing to get a plain string:
这里没有什么对我有用。我得到的最接近的是纬度值的“可选（37.8）”，我认为是因为 CLLocationCoordinate2D 是一个可选的类参数。这是我最终得到一个普通字符串的方法：
let numLat = NSNumber(double: (self.myLocation?.latitude)! as Double)
let stLat:String = numLat.stringValue
回答by Supratik Majumdar
var lat = userLocation.coordinate.latitude
var latData = String(stringInterpolationSegment: lat)
