iOS
MKDistanceFormatter

Cadena de distancia

Dado un CLLocationDistance (simplemente un Double representa los medidores), CLLocationDistance una cadena legible por el usuario:

let distance = CLLocationDistance(42)
let formatter = MKDistanceFormatter()
let answer = formatter.stringFromDistance(distance)
// answer = "150 feet"

C objetivo

CLLocationDistance distance=42;
MKDistanceFormatter *formatter=[[MKDistanceFormatter alloc]init];
NSString *answer=[formatter stringFromDistance:distance];
// answer = "150 feet"

Por defecto, esto respeta la configuración regional del usuario.

Unidades de distancia

import Mapkit units import Mapkit Set a uno de .Default, .Metric, .Imperial, .ImperialWithYards :

formatter.units = .Metric
var answer = formatter.stringFromDistance(distance)
// "40 m"

formatter.units = .ImperialWithYards
answer = formatter.stringFromDistance(distance)
// "50 yards"

C objetivo

MKDistanceFormatter *formatter=[[MKDistanceFormatter alloc]init];
formatter.units=MKDistanceFormatterUnitsMetric;
NSString *answer=[formatter stringFromDistance:distance];
//40 m

formatter.units=MKDistanceFormatterUnitsImperialWithYards;
NSString *answer=[formatter stringFromDistance:distance];
//50 yards

Estilo de unidad

Establezca unitStyle en uno de .Default, .Abbreviated, .Full :

formatter.unitStyle = .Full
var answer = formatter.stringFromDistance(distance)
// "150 feet"

formatter.unitStyle = .Abbreviated
answer = formatter.stringFromDistance(distance)
// "150 ft"

C objetivo

formatter.unitStyle=MKDistanceFormatterUnitStyleFull;
NSString *answer=[formatter stringFromDistance:distance];
// "150 feet"

 formatter.unitStyle=MKDistanceFormatterUnitStyleAbbreviated;
 NSString *answer=[formatter stringFromDistance:distance];
// "150 ft"