universal_translator 2.0.0

A extension to native flutter widgets witch allows the widget to translate the text any rest API yout want, be it Rakuten, Google Translator or any other.

example/lib/main.dart

import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:universal_translator/universal_translator.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    String path = "https://nlp-translation.p.rapidapi.com/v1/translate";
    Map<String, dynamic> headers = {"x-rapidapi-key": "MY_API_KEY"};

    String responsePattern(Response response) {
      if (response.statusCode == 200 && response.data['status'] == 200) {
        dynamic data = response.data;
        return data["translated_text"][data["to"]];
      }
      return '';
    }

    Map<String, dynamic> bodyPattern(String text, Locale to) =>
        {"text": text, "to": to.toLanguageTag(), "from": "pt"};

    return UniversalTranslatorInit(
      path,
      headers: headers,
      method: HttpMethod.get,
      bodyPattern: bodyPattern,
      responsePattern: responsePattern,
      translateTo: Locale('en'),
      cacheDuration: Duration(days: 13),
      // automaticDetection: , In case you don't know the user language
      builder: () => MaterialApp(
        title: 'Flutter Demo',
        theme: ThemeData(
          primarySwatch: Colors.blue,
        ),
        home: MyHomePage(title: 'Página inicial de demonstração do Flutter'),
      ),
    );
  }
}

class MyHomePage extends StatefulWidget {
  final String? title;

  const MyHomePage({super.key, this.title});

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title ?? "").translate(true),
      ),
      body: Center(
        child: Column(
            mainAxisSize: MainAxisSize.min,
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              Text("Original: Meu texto traduzido",
                  textAlign: TextAlign.center),
              Text("Meu texto traduzido", textAlign: TextAlign.center)
                  .translate(),
              SizedBox(height: 20),
              Text("Original: Este texto mostra um placeholder diferente",
                  textAlign: TextAlign.center),
              Text.rich(
                      TextSpan(text: "primeiro ", children: [
                        TextSpan(text: "primeiro.primeiro ", children: [
                          TextSpan(
                              text: "primeiro.primeiro.primeiro ",
                              children: [
                                TextSpan(
                                  text: "primeiro.primeiro.primeiro.primeiro ",
                                ),
                              ]),
                          TextSpan(text: "primeiro.primeiro.segundo ")
                        ]),
                        TextSpan(text: "primeiro.segundo ", children: [
                          TextSpan(text: "primeiro.segundo.primeiro "),
                          TextSpan(text: "primeiro.segundo.segundo "),
                          TextSpan(text: "primeiro.segundo.terceiro ")
                        ])
                      ]),
                      textAlign: TextAlign.center)
                  .translate(true, "Place to Holder")
            ]),
      ),
    );
  }
}