internacionalization.dart
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import 'dart:ui';
import 'package:get_core/get_core.dart';
extension Trans on String {
String get tr {
// Returns the key if locale is null.
if (Get.locale?.languageCode == null) return this;
// Checks whether the language code and country code are present, and
// whether the key is also present.
if (Get.translations.containsKey(
"${Get.locale.languageCode}_${Get.locale.countryCode}") &&
Get.translations["${Get.locale.languageCode}_${Get.locale.countryCode}"]
.containsKey(this)) {
return Get.translations[
"${Get.locale.languageCode}_${Get.locale.countryCode}"][this];
// Checks if there is a callback language in the absence of the specific
// country, and if it contains that key.
} else if (Get.translations.containsKey(Get.locale.languageCode) &&
Get.translations[Get.locale.languageCode].containsKey(this)) {
return Get.translations[Get.locale.languageCode][this];
// If there is no corresponding language or corresponding key, return
// the key.
} else if (Get.fallbackLocale != null) {
final fallback = Get.fallbackLocale;
final key = "${fallback.languageCode}_${fallback.countryCode}";
if (Get.translations.containsKey(key) &&
Get.translations[key].containsKey(this)) {
return Get.translations[key][this];
}
if (Get.translations.containsKey(fallback.languageCode) &&
Get.translations[fallback.languageCode].containsKey(this)) {
return Get.translations[fallback.languageCode][this];
}
return this;
} else {
return this;
}
}
String trArgs([List<String> args]) {
var key = tr;
if (args != null) {
for (final arg in args) {
key = key.replaceFirst(RegExp(r'%s'), arg.toString());
}
}
return key;
}
}
class _IntlHost {
Locale locale;
Locale fallbackLocale;
Map<String, Map<String, String>> translations = {};
}
extension LocalesIntl on GetInterface {
static final _intlHost = _IntlHost();
Locale get locale => _intlHost.locale;
Locale get fallbackLocale => _intlHost.fallbackLocale;
set locale(Locale newLocale) => _intlHost.locale = newLocale;
set fallbackLocale(Locale newLocale) => _intlHost.fallbackLocale = newLocale;
Map<String, Map<String, String>> get translations => _intlHost.translations;
void addTranslations(Map<String, Map<String, String>> tr) {
translations.addAll(tr);
}
void appendTranslations(Map<String, Map<String, String>> tr) {
tr.forEach((key, map) {
if (translations.containsKey(key)) {
translations[key].addAll(map);
} else {
translations[key] = map;
}
});
}
}