NSLocaleUsesMetricSystem always YES on iPad

Question

I am trying to decide if the users Region/Locale settings validates the use of Metric values (in this case if kg or lb should be appended).

I am running 3.2 on my iPad and on the simulator(Xcode 3.2.4). I have tried out a few different Region settings but I simply can not make it return NO for NSLocaleUsesMetricSystem

NSLocale *locale = [NSLocale systemLocale]; 
BOOL usesMetric = [[locale objectForKey:NSLocaleUsesMetricSystem] boolValue];

NSLog(@"The system is Metric: %@\n", (usesMetric ? @"YES" : @"NO"));

This even happens for language set to English and region set to United States on both the simulator and on the actual device.

I also tried NSLocaleMeasurementSystem and it too always returns "Metric", never "U.S.".

How will I go about deciding if I should use Metric or not?

Thanks for any help given:)

...could I be so lucky that the whole world changed to metric while I was sleeping:)

I encountered the same issue, with no solution so far. – Felix Lamouroux Feb 23 '11 at 14:44 — Felix Lamouroux, Feb 23 '11 at 14:44

score 12 · Answer 1 · answered Jul 16 '11 at 19:41

12

Try currentLocale instead of systemLocale

answered Jul 16 '11 at 19:41

Stefan

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Thanks Stefan. Because the question is almost a year old I found a workaround a long time ago, but never a cause. Can anyone confirm this is correct so I can accept the answer:) – RickiG Jul 19 '11 at 17:43
systemLocale contains the default values in the absence of another value, i.e. the values in currentLocale. currentLocale is what you want to use. – ljkyser Aug 04 '11 at 21:37

score 2 · Answer 2 · answered Mar 19 '12 at 14:22

2

Had the same problem, until I realized, that UK officially uses metric system. I have always thought that they still use imperial, so I tested with UK.

As soon as I started to test US locale, NSLocaleUsesMetricSystem started to return "NO" as expected.

Hope this helps.

answered Mar 19 '12 at 14:22

Vilém Kurz

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Seems to be right! do you have any source for the UK officially using metric? – stigi Mar 05 '13 at 21:15
Pretty much only North America uses the Imperial system. The rest of the work uses metric. – WrightsCS Oct 12 '15 at 18:09

NSLocaleUsesMetricSystem always YES on iPad

2 Answers2