| ## Regenerating the i18n files |
| |
| The files in this directory are based on ../lib/stock_strings.dart |
| which defines all of the localizable strings used by the stocks |
| app. The stocks app uses |
| the [Dart `intl` package](https://github.com/dart-lang/intl). |
| |
| Rebuilding everything requires two steps. |
| |
| With the `examples/stocks` as the current directory, generate |
| `intl_messages.arb` from `lib/stock_strings.dart`: |
| ``` |
| flutter pub pub run intl_translation:extract_to_arb --output-dir=lib/i18n lib/stock_strings.dart |
| ``` |
| The `intl_messages.arb` file is a JSON format map with one entry for |
| each `Intl.message()` function defined in `stock_strings.dart`. This |
| file was used to create the English and Spanish localizations, |
| `stocks_en.arb` and `stocks_es.arb`. The `intl_messages.arb` wasn't |
| checked into the repository, since it only serves as a template for |
| the other `.arb` files. |
| |
| |
| With the `examples/stocks` as the current directory, generate a |
| `stock_messages_<locale>.dart` for each `stocks_<locale>.arb` file and |
| `stock_messages_all.dart`, which imports all of the messages files: |
| ``` |
| flutter pub pub run intl_translation:generate_from_arb --output-dir=lib/i18n \ |
| --generated-file-prefix=stock_ --no-use-deferred-loading lib/*.dart lib/i18n/stocks_*.arb |
| ``` |
| |
| The `StockStrings` class uses the generated `initializeMessages()` |
| function (`stock_messages_all.dart`) to load the localized messages |
| and `Intl.message()` to look them up. |
