131 lines
4.1 KiB
Dart
131 lines
4.1 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:get/get.dart';
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import 'package:speech_to_text/speech_recognition_result.dart';
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import 'package:translator/translator.dart';
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import 'package:trans_lark/global/speech_to_text_manager.dart';
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import 'package:trans_lark/global/translate_language.dart';
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import 'package:trans_lark/util/obj_util.dart';
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import 'package:trans_lark/widget/base_easyloading.dart';
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class FaceToFaceController extends GetxController with GetSingleTickerProviderStateMixin{
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final aboveScrollController = ScrollController();
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final underScrollController = ScrollController();
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var angle = 0.0.obs;
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/// 翻译
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final _translator = GoogleTranslator();
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/// 显示的文本
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var aboveText = ''.obs;
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var underText = ''.obs;
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/// 是否选择的下方
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var selectedUnder = true.obs;
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@override
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void onReady() async {
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super.onReady();
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onTapSpeak(true);
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}
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@override
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void onClose() async {
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await SpeechToTextManager().stopListening();
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aboveScrollController.dispose();
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underScrollController.dispose();
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super.onClose();
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}
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Future<void> onBackTap() async {
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await SpeechToTextManager().stopListening();
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Get.back();
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}
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/// 旋转 180 度
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void onTapRotate() {
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angle.value -= 0.5;
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}
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Future<void> onTapSpeak(bool isUnder) async {
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if (!SpeechToTextManager().hasSpeech) {
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await SpeechToTextManager().initSpeech();
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}
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if (SpeechToTextManager().hasSpeech) {
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if (isUnder) {
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if (!selectedUnder.value) {
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await SpeechToTextManager().stopListening();
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}
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selectedUnder.value = true;
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_scrollToBottom();
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SpeechToTextManager().startListening(TranslateLanguage().fromLanguageEntity.value.languageCode, _onSpeechResult);
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} else {
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if (selectedUnder.value) {
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await SpeechToTextManager().stopListening();
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}
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selectedUnder.value = false;
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_scrollToBottom();
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SpeechToTextManager().startListening(TranslateLanguage().toLanguageEntity.value.languageCode, _onSpeechResult);
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}
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} else {
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BaseEasyLoading.toast('Speech not available');
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}
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}
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Future<void> _onSpeechResult(SpeechRecognitionResult result) async {
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debugPrint('识别结果：${result.recognizedWords}');
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if (ObjUtil.isNotEmptyStr(result.recognizedWords)) {
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if (selectedUnder.value) {
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underText.value += '${result.recognizedWords}\n';
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var translateText = await _translation(result.recognizedWords);
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debugPrint('翻译结果：${result.recognizedWords}');
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if (ObjUtil.isNotEmptyStr(translateText)) {
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aboveText.value += '$translateText\n';
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}
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} else {
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aboveText.value += '${result.recognizedWords}\n';
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var translateText = await _translation(result.recognizedWords);
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debugPrint('翻译结果：${result.recognizedWords}');
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if (ObjUtil.isNotEmptyStr(translateText)) {
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underText.value += '$translateText\n';
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}
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}
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_scrollToBottom();
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}
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}
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Future<String> _translation(String sourceText) async {
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try {
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String from = selectedUnder.value ? TranslateLanguage().fromLanguageEntity.value.languageCode : TranslateLanguage().toLanguageEntity.value.languageCode;
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String to = selectedUnder.value ? TranslateLanguage().toLanguageEntity.value.languageCode : TranslateLanguage().fromLanguageEntity.value.languageCode;
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Translation translate = await _translator.translate(
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sourceText,
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from: from,
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to: to,
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);
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return translate.text;
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} catch (e) {
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debugPrint('Translation failed,${e.toString()}');
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}
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return '';
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}
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/// 滚动到列表的最底部
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void _scrollToBottom() {
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if (aboveScrollController.hasClients) {
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aboveScrollController.animateTo(
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aboveScrollController.position.maxScrollExtent,
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duration: const Duration(milliseconds: 200),
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curve: Curves.easeOut,
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);
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}
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if (underScrollController.hasClients) {
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underScrollController.animateTo(
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underScrollController.position.maxScrollExtent,
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duration: const Duration(milliseconds: 200),
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curve: Curves.easeOut,
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);
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}
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}
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}
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