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How to round a value of type Measurement using MeasurementFormatter in Swift?

I need to round a value of type Measurement<UnitLength> to the nearest Int using MeasurementFormatter. Given the following sample: 

let distance = Measurement(value: 0.28, unit: .miles)

let formattedDistance = measurementFormatter.string(from: distance) // "492.8 yd"

What I am trying to achieve is "493 yd" instead of "492.8 yd"

I tried using roundingMode but didn't help with any of its modes: 

measurementFormatter.numberFormatter.roundingMode = .up

Any help or idea is appreciated.

Solution

  • You need to set maximumFractionDigits to 0 on the NumberFormatter as well as the roundingMode to .up to force the formatter to round decimal numbers up.

    measurementFormatter.numberFormatter.maximumFractionDigits = 0
measurementFormatter.numberFormatter.roundingMode = .up