This is similar to a question I asked yesterday but the answer I got doesn't seem to work in this case.
I'm getting altitude values in meters from Core Location. I want to display these in a localized form. As an example, the altitude where I am right now is 1839m above sea level. This should be displayed as 6033 feet. The best I can do with MeasurementFormatter
is "1.143 mi".
let meters : Double = 1839
let metersMeasurement = Measurement(value: meters, unit: UnitLength.meters)
let measurementFormatter = MeasurementFormatter()
measurementFormatter.locale = Locale(identifier: "en_US")
let localizedString = measurementFormatter.string(from: metersMeasurement)
The .naturalScale
option that answered my previous question doesn't help here. I think this is a limitation of the framework, but I wonder if anyone has a workaround for now.
You just need to convert your UnitLength from meters to feet. You can also create a custom US measurement formatter to display it as needed:
extension Measurement where UnitType == UnitLength {
private static let usFormatted: MeasurementFormatter = {
let formatter = MeasurementFormatter()
formatter.locale = Locale(identifier: "en_US")
formatter.unitOptions = .providedUnit
formatter.numberFormatter.maximumFractionDigits = 0
formatter.unitStyle = .long
return formatter
}()
var usFormatted: String { Measurement.usFormatted.string(from: self) }
}
Playground
let value: Double = 1839
let meters: Measurement<UnitLength> = .init(value: value, unit: .meters)
let feet = meters.converted(to: .feet)
let formatted = feet.usFormatted
print(formatted) // "6,033 feet"\n