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Published 14 days ago • Latest: 0.3.2
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Automatic Flutter app translation with zero code changes. One line in main.dart. Supports DeepL, MyMemory, Lingva, Google Translate, and custom translators.

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0.3.0 #

  • Added layoutPolicy to autoL10n() / AutoL10nBinding.ensureInitialized():
    • AutoL10nLayoutPolicy.off
    • AutoL10nLayoutPolicy.safeFallback
    • AutoL10nLayoutPolicy.safeEllipsisCurrent
  • Added layout-safe runtime handling for tight horizontal Row/Flex labels:
    • optional fallback to source text
    • optional translated ellipsis trimming (...) in conservative mode
  • Runtime bootstrap made deterministic: SharedPreferences cache -> ARB preload -> API fallback.
  • ARB-only mode no longer uses NoOpTranslator in runtime pipeline; API queue/flush is skipped when no translator is configured.
  • Unified cache key namespace by language: auto_l10n_<lang> (instead of translator-scoped keys).
  • Runtime cache no longer stores unchanged entries (translated == original).
  • Runtime translation patching now also handles Text.textSpan (in addition to Text.data and RichText).
  • Runtime lookup improved for case/whitespace mismatches (case-insensitive matching with preserved case pattern and trimmed lookup with preserved outer whitespace).
  • Retry behavior for failed API batches: up to 3 retry attempts, then stop until new input arrives.
  • DeepL XML mode fixes: safe XML escaping around placeholders and entity decode after translation.
  • CLI extraction upgraded to AST-first scanning and expanded to capture real-world UI patterns.
  • CLI now captures fallback literals in mixed expressions (e.g. ternary with one non-literal branch).
  • CLI now captures string arguments from mixed-signature calls (e.g. string + enum arguments in one call).
  • CLI now resolves const references (including qualified static const values) when extracting strings.
  • CLI keys are normalized with trim by default (cleaner ARB keys).
  • README updated with layout policy documentation and usage examples.

0.2.0 #

  • Generate CLI (dart run auto_l10n): from-code (scan Text('...') / Text("...")) or from-arb; optional --service (deepl, google, mymemory, lingva, mock) with --api-key for deepl/google. Output to assets/auto_l10n by default.
  • Pre-generated ARB only: autoL10n() with no provider loads from translationsPath (default assets/auto_l10n); no API key required.
  • Pre-generated + API: autoL10n(provider: ..., apiKey: ...) loads ARB first, translates missing strings via API.
  • API only: autoL10n(provider: ..., loadPregenerated: false).
  • autoL10n() top-level helper; translationsPath and loadPregenerated parameters on binding.
  • TranslationCache: optional preloaded map; addPreloaded() for async ARB load and persist.
  • NoOpTranslator when only pre-generated ARB is used.
  • RichText widgets are now patched and restored: translated text is shown in RichText / nested TextSpans, not only in Text.
  • Example app: user-generated content (text field → translated output), locale picker (device locale on launch with fallback to en), in-app copy about API key vs free providers, pre-generated ARB.

0.1.0 #

  • Initial release.
  • Runtime translation for Flutter Text and RichText via AutoL10nBinding.
  • Built-in providers: DeepL, MyMemory, Lingva, Google Translate, Mock.
  • Optional targetLocale (defaults to device locale).
  • Custom translators via AbstractTranslator.
  • Per-language cache in memory and SharedPreferences.
  • Static ARB generation: dart run auto_l10n:generate.

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Automatic Flutter app translation with zero code changes. One line in main.dart. Supports DeepL, MyMemory, Lingva, Google Translate, and custom translators.

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Dependencies

analyzer, flutter, http, shared_preferences

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