Handling Android Locale-CodePudding

I was struggling with date formatting in Kotlin.

Does someone know why using :

val locale = ConfigurationCompat.getLocales(Resources.getSystem().configuration).get(0)
java.text.DateFormat.getDateInstance(java.text.DateFormat.SHORT, locale).format(Date())

give me :

In FR_fr = 08/09/2022 (expected)
In EN_gb = 08/09/2022 (unexpected)

BUT

val currentLanguage = ConfigurationCompat.getLocales(Resources.getSystem().configuration).get(0).language
val locale = Locale(currentLanguage)
java.text.DateFormat.getDateInstance(java.text.DateFormat.SHORT, locale).format(Date())

gives me :

In FR_fr = 08/09/2022 (expected)
In EN_gb = 9/8/2022 (expected)

Is there a simpler way?

CodePudding user response：

In the second one, while you are doing this,

ConfigurationCompat.getLocales(Resources.getSystem().configuration).get(0).language

it will give language as en.It will not give country variant english.It will return generic english locale.

So you should create locale like below.

  val currentLanguage = ConfigurationCompat.getLocales(Resources.getSystem().configuration).get(0)
        if (currentLanguage!=null) {
            val currentLocale = Locale(currentLanguage.language, currentLanguage.country, currentLanguage.variant)
        }

THis will create locale with en-GB in your case.

In the first one you are already getting locale object with en-GB.

en-GB and en has different formats of date.

08/09/2022 : en-GB
9/8/2022 : en

en-IN (Indian English) also will give 08/09/2022 as result.

CodePudding user response：

The reason for the different results is because

in you first example, you work with actual en_GB/fr_FR locale,
but in the second example, your locale is only en/ fr.
That's because language/getLanguage() in this instance returns only en/ fr, without country specification.

So, I'd say, the first result (08/09/2022) is the correct one for en_GB. If you want a different date format you probably have to create your own one.