Prioritize users' default locales in language list (#2850)
* Prioritize users' default locales in language list. Closes #2844 * Add the configured app languages before the configured system languages
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@ -51,6 +51,7 @@ import androidx.appcompat.app.AppCompatDelegate
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import androidx.core.app.ActivityCompat
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import androidx.core.content.ContextCompat
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import androidx.core.content.FileProvider
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import androidx.core.os.LocaleListCompat
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import androidx.core.view.ContentInfoCompat
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import androidx.core.view.OnReceiveContentListener
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import androidx.core.view.isGone
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@ -534,9 +535,28 @@ class ComposeActivity :
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)
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}
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private fun mergeLocaleListCompat(list: MutableList<Locale>, localeListCompat: LocaleListCompat) {
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for (index in 0 until localeListCompat.size()) {
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val locale = localeListCompat[index]
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if (locale != null && !list.contains(locale)) {
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list.add(locale)
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}
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}
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}
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private fun setupLanguageSpinner(initialLanguage: String?) {
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val locales = Locale.getAvailableLocales()
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.filter { it.country.isNullOrEmpty() && it.script.isNullOrEmpty() && it.variant.isNullOrEmpty() } // Only "base" languages, "en" but not "en_DK"
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val locales = mutableListOf<Locale>()
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mergeLocaleListCompat(locales, AppCompatDelegate.getApplicationLocales()) // configured app languages first
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mergeLocaleListCompat(locales, LocaleListCompat.getDefault()) // then configured system languages
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locales.addAll( // finally, other languages
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// Only "base" languages, "en" but not "en_DK"
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Locale.getAvailableLocales().filter {
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it.country.isNullOrEmpty() &&
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it.script.isNullOrEmpty() &&
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it.variant.isNullOrEmpty()
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}
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)
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var currentLocaleIndex = locales.indexOfFirst { it.language == initialLanguage }
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if (currentLocaleIndex < 0) {
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Log.e(TAG, "Error looking up language tag '$initialLanguage', falling back to english")
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