Casey LissFeb 13, 2024

This one is for you, @hotdogsladies.

FAQ:
1) This is a proof-of-concept; no promises
2) I don't know when it'll ship, if I can even get it production-ready
3) Data coverage (Wikidata) is okay but not stellar; not all actors will have their heights shown
4) I'll try to use sensible units for countries that aren't idiots like us

Show threadCasey LissFeb 13, 2024

I think I've got units working for countries that make sense.

This is all based on your setting in Settings → General → Language & Region → Measurement System.

🇺🇸/🇬🇧 get feet/inches.
The rest of the world gets cm.

I genuinely don't know how this will play in 🇨🇦, so, uh, good luck, northern friends? 😬

Show threadCasey Liss

Related: is there a way to force either Measurement or LengthFormatter to use feet/inches? I see that this is a thing, but I want to be able to override the default Locale.

https://developer.apple.com/documentation/foundation/lengthformatter/1416517-isforpersonheightuse/

I tried setting a unit of feet, but it still shows feet and fractional feet, rather than inches:

isForPersonHeightUse | Apple Developer Documentation

A Boolean value that indicates whether the resulting string represents a person’s height.

Apple Developer Documentation
Feb 13, 2024 at 6:56pmIvory for Mac
Show threadCasey LissFeb 13, 2024
Got there thanks to @vpsteinmann and @_nd_:
Show threadGabriel Viso CarreraFeb 13, 2024
@caseyliss @vpsteinmann @_nd_ You are about using the locale of the phone instead of hardcoding the US one, aren't you? Are you? 
Show threadCasey LissFeb 13, 2024
@gabriel Context here is the popover I've shown in screenshots. So in this case, the phone is metric (and it was shown by default). However, the user has just tapped the height and thus is trying to see an alternative unit. Which would be feet/inches.
Show threadGabriel Viso CarreraFeb 13, 2024
@caseyliss Ah, right! Got it. It may sound stupid but I was hiding the cm with my finger when trying to zoom in.
Show threadRickFeb 13, 2024
@caseyliss @vpsteinmann @_nd_ I tip my hat to Apple for providing this. Very cool!
Show threadLeon OverweelFeb 13, 2024
@caseyliss to localize for Britain I think you have to use `.innit()`
Show threadCasey LissFeb 13, 2024
@leonoverweel 🤣
Show threadThomas N (old account) Feb 13, 2024

@caseyliss @vpsteinmann @_nd_ You can use ˋusage: .asProvidedˋ (without needing .locale()) to use the measurement unit you pass in the 1st place, independently of what the locale typically uses

https://fuckingformatstyle.com/measurement-style/#usage

Measurement Style

Print out your various measurements. Xcode 13+ The Measurement API inside of Foundation is a powerful toolkit for converting and displaying units. As of Xcode 14, this is the canonical list of Dimensions 1 that are supported: Unit Description Base unit Custom Usage? Unit Acceleration Unit for acceleration meters per second squared (m/s²) No Unit Angle Unit for planar angle and rotation degrees (°) No Unit Area Unit for area square meters (m²) No Unit Mass Unit for concentration of mass grams per liter (g/L) No Unit Dispersion Unit for dispersion parts per million (ppm) No Unit Duration Unit for duration of time seconds (sec) No Unit Charge Unit for electric charge coulombs (C) No Unit Current Unit for electric current amperes (A) No Unit Difference Unit for electric potential difference volts (V) No Unit Resistance Unit for electric resistance ohms (Ω) No Unit Energy Unit for energy joules (J) Yes Unit Frequency Unit for frequency hertz (Hz) No Unit Efficiency Unit for fuel efficiency liters per 100 kilometers (L/100km) No Unit Illuminance Unit for illuminance lux (lx) No Unit Storage Unit for quantities of information bytes (b) Yes 2 Xcode 14+ Unit Length Unit for length meters (m) Yes Unit Mass Unit for mass kilograms (kg) Yes Unit Power Unit for power watts (W) No Unit Pressure Unit for pressure newtons per square meter (N/m²) No Unit Speed Unit for speed meters per second (m/s) No Unit Temperature Unit for temperature kelvin (K) Yes Unit Volume Unit for volume liters (L) Yes Measurement is special in that the localized string output can vary significantly depending on the Locale used by the format style.

Fucking Format Style!
Show threadCasey LissFeb 13, 2024
@tomn94 Ah, that's useful, but I need personHeight for usage.
Show threadjoshhuntFeb 13, 2024
@caseyliss i think you’ve been listening to too much Merlin!
Show threadVinceFeb 13, 2024
@caseyliss How about this: https://gist.github.com/vpsteinmann/959aa215608b6e2f0e9ae5446b621689
Person height formatting in Swift

Person height formatting in Swift. GitHub Gist: instantly share code, notes, and snippets.

Gist
Show threadAndreas HartlFeb 13, 2024
@vpsteinmann @caseyliss additionally, you can use Locale.Components kind of like a MutableLocale – you initialize it using a Locale, set specific properties and init a Locale from that.
Show threadVinceFeb 13, 2024
@_nd_ @caseyliss Thanks for the hint, I updated the gist to show how to set a specific measurement system for a provided Locale. https://gist.github.com/vpsteinmann/959aa215608b6e2f0e9ae5446b621689
Person height formatting in Swift

Person height formatting in Swift. GitHub Gist: instantly share code, notes, and snippets.

Gist
Show threadCasey LissFeb 13, 2024

@vpsteinmann @_nd_ zomg I love you both. This is SO MUCH cleaner

(Diff shown so you can see why I was “😬" about my first crack at this)

Show threadThe Animal and the MachineFeb 13, 2024
@caseyliss
Sorry if this is a dumb question, but can’t we all just have both?
Show threadMichael HughesFeb 13, 2024
@caseyliss Just stick to furlongs
Show threadzkarjFeb 14, 2024
@caseyliss I thought users could override their preferences in System Settings anyway? I'd just ask the OS what units and stick with that. You can be sure millions of other apps do.