32 lines
No EOL
1 KiB
Dart
32 lines
No EOL
1 KiB
Dart
import 'dart:async';
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import 'package:flutter/services.dart' show rootBundle;
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import 'package:meta/meta.dart';
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final esRegExp = new RegExp("^es-");
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String getFallbackLang(String lang) {
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if (lang == 'ast' || lang == 'gl' || lang == 'eu' ||
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lang == 'es' || lang == 'ca' || (esRegExp).allMatches(lang).length > 0) {
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return 'es';
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}
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return 'en';
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}
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Future<String> getFileNameOfLang({@required String dir,@required String fileName,@required String ext,@required String lang}) async {
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String base = '$dir/$fileName';
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String fallback = getFallbackLang(lang);
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String file = '${base}-${lang}.${ext}';
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if (await assetNotExists(file)) {
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file = '${base}-${fallback}.${ext}';
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if (await assetNotExists(file)) {
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file = '${base}.${ext}';
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}
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}
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return file;
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}
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// https://github.com/flutter/flutter/issues/15325
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Future<bool> assetNotExists(String asset) {
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print('Does not exists $asset ?');
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return rootBundle.load(asset).then((_) => false).catchError((err, stack) { print (err); print(stack); return true;});
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} |