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Download CSV file and generates the localization keys from an online Google Sheet.

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easy_localization_generator

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Easy Localization Generator

Download CSV file and generates the localization keys from an online Google Sheet to working with easy_localization and easy_localization_loader

This tool inspired by flutter_sheet_localization_generator

🔩 Installation

Add to your pubspec.yaml:

dependencies:
  easy_localization: <last_version>
  easy_localization_loader: <last_version>

dev_dependencies:
  build_runner: <last_version>
  easy_localization_generator: <last_version>

🔌 Usage

1. Create a CSV Google Sheet

Create a sheet with your translations. Make sure that all dynamic-arg strings have names of arg. It will generate readable functions of translation to use. (following the bellow format, an example sheet is available here) :

google sheet example

Make sure that your sheet is shared.

share

Extract from the link the DOCID value : https://docs.google.com/spreadsheets/d/<DOCID>/edit?usp=sharing

2. Declare a localization delegate

Declare the following _Strings class with the SheetLocalization annotation pointing to your sheet in a lib/localization/strings.dart file

import 'dart:ui';

import 'package:easy_localization_generator/easy_localization_generator.dart';

part 'strings.g.dart';

@SheetLocalization(
  docId: 'DOCID',
  version: 1, // the `1` is the generated version.
  //You must increment it each time you want to regenerate a new version of the labels.
  outDir: 'assets/langs', //default directory save downloaded CSV file
  outName: 'langs.csv', //default CSV file name
  preservedKeywords: [
    'few',
    'many',
    'one',
    'other',
    'two',
    'zero',
    'male',
    'female',
  ],
)
class _Strings {}

3. Generate your localizations

Run the following command to generate a lib/localization/strings.g.dart file :

flutter pub run build_runner build --delete-conflicting-outputs

Sample of strings.g.dart

4. Configure your app

Config step by step following this tutorial from README.md of easy_localization

5. Development

Simple text
Text(Strings.title)
Text with args
Text(
  Strings.msg(
    name: 'Jack',
    type: 'Hot',
  ),
),
Text with plural
  • no named arg version

Text(Strings.amount(counter))
  • named arg version (recommend)

Text(
  Strings.clicked(
    counter,
    count: counter,
  ),
),

⚡ Regeneration

Because of the caching system of the build_runner, it can't detect if there is a change on the distant sheet and it can't know if a new generation is needed.

The version parameter of the @SheetLocalization annotation solves this issue.

Each time you want to trigger a new generation, simply increment that version number and call the build runner again.

❓️ Why ?

I find the easy_localization has already Code generation, but it doesn't support working with Google Sheet and generate keys from CSV file. So, I make this simple generator tool.

OPTION 2: Easy Localization Generator with flutter_gen

I forked and then added some code, which make Easy Localization Generator can working with it. Please checkout here.

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Download CSV file and generates the localization keys from an online Google Sheet.

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