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465 lines
15 KiB
465 lines
15 KiB
import 'package:flutter/material.dart';
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import 'package:get/get.dart';
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import 'package:flutter_screenutil/flutter_screenutil.dart';
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import '../controllers/translation_controller.dart';
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import '../views/translation_history_view.dart';
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import '../bindings/translation_history_binding.dart';
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// import 'package:intl/intl.dart';
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class TranslationView extends GetView<TranslationController> {
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const TranslationView({Key? key}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: _buildAppBar(),
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body: _buildBody(),
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);
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}
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PreferredSizeWidget _buildAppBar() {
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return AppBar(
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backgroundColor: Colors.white,
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elevation: 0,
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leading: IconButton(
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icon: Icon(
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Icons.arrow_back_ios,
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color: Colors.black,
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size: 20.sp,
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),
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onPressed: () {
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// Stop recognition and TTS before navigating back
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controller.stopAll();
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Get.back();
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},
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),
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title: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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// 源语言选择
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GestureDetector(
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onTap: () => _showLanguageSelectionDialog(true),
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child: Container(
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padding: EdgeInsets.symmetric(horizontal: 8.w, vertical: 4.h),
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decoration: BoxDecoration(
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color: Colors.grey[100],
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borderRadius: BorderRadius.circular(16.r),
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),
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child: Obx(() => Text(
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controller.sourceLanguage.value.split(' ')[0], // Just show the Chinese part
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style: TextStyle(
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fontSize: 16.sp,
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fontWeight: FontWeight.w600,
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color: Colors.black,
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),
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)),
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),
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),
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// 语言互换按钮
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GestureDetector(
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onTap: controller.swapLanguages,
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child: Container(
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margin: EdgeInsets.symmetric(horizontal: 8.w),
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padding: EdgeInsets.all(4.r),
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decoration: BoxDecoration(
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color: Colors.blue[50],
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shape: BoxShape.circle,
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),
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child: Icon(
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Icons.swap_horiz,
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color: Colors.blue,
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size: 20.sp,
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),
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),
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),
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// 目标语言选择
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GestureDetector(
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onTap: () => _showLanguageSelectionDialog(false),
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child: Container(
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padding: EdgeInsets.symmetric(horizontal: 8.w, vertical: 4.h),
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decoration: BoxDecoration(
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color: Colors.grey[100],
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borderRadius: BorderRadius.circular(16.r),
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),
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child: Obx(() => Text(
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controller.targetLanguage.value.split(' ')[0], // Just show the English part
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style: TextStyle(
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fontSize: 16.sp,
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fontWeight: FontWeight.w600,
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color: Colors.black,
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),
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)),
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),
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),
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],
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),
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centerTitle: true,
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actions: [
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// TTS toggle button
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Obx(() => IconButton(
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icon: Icon(
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controller.isTtsEnabled.value ? Icons.volume_up : Icons.volume_off,
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color: Colors.black,
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size: 24.sp,
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),
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onPressed: controller.toggleTts,
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tooltip: '自动播放翻译结果',
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)),
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// 历史记录按钮
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IconButton(
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icon: Icon(
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Icons.history,
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color: Colors.black,
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size: 24.sp,
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),
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onPressed: () async {
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// 停止语音识别和TTS，释放资源
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await controller.stopAll();
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await Get.to(
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() => const TranslationHistoryView(),
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binding: TranslationHistoryBinding(),
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);
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// 返回时不自动开始翻译，只需重新设置滚动监听器
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controller.setupScrollListener();
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},
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tooltip: '查看历史记录',
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),
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],
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);
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}
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Widget _buildBody() {
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return Column(
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children: [
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Expanded(
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child: _buildTranslationContent(),
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),
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_buildControlBar(),
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],
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);
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}
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Widget _buildTranslationContent() {
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return Obx(() {
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final itemCount = controller.translationHistory.length;
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// 使用 currentItem 来判断是否显示当前项
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final hasCurrentItem = controller.currentItem.value != null &&
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controller.currentItem.value!.sourceText.isNotEmpty; // 只有当有实际内容时才显示当前项
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// 计算底部内边距，确保内容不会被底部框遮住
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final bottomPadding = controller.bottomBarHeight + 20.h; // 使用控制栏高度加上额外间距
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return ListView.builder(
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controller: controller.scrollController,
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padding: EdgeInsets.only(
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left: 16.w,
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right: 16.w,
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top: 16.h,
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bottom: bottomPadding
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),
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itemCount: itemCount + (hasCurrentItem ? 1 : 0),
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itemBuilder: (context, index) {
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// Current item (being translated)
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if (hasCurrentItem && index == itemCount) {
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return _buildTranslationItemWidget(
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controller.currentItem.value!.sourceText,
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controller.currentItem.value!.translatedText,
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true,
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isIntermediate: controller.currentItem.value!.isIntermediate,
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);
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}
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// History items
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final historyItem = controller.translationHistory[index];
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return _buildTranslationItemWidget(
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historyItem.sourceText,
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historyItem.translatedText,
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false,
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item: historyItem,
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isIntermediate: false, // 历史项总是显示为最终结果
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);
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},
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);
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});
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}
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Widget _buildTranslationItemWidget(
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String sourceText,
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String translatedText,
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bool isCurrent,
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{
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TranslationItem? item,
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bool isIntermediate = false,
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}
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) {
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// 使用AnimatedContainer实现平滑过渡，但恢复原来的视觉样式
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return AnimatedContainer(
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duration: const Duration(milliseconds: 300),
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curve: Curves.easeInOut,
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margin: EdgeInsets.only(bottom: 24.h),
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decoration: BoxDecoration(
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color: Colors.grey[100], // 恢复原来的背景色
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borderRadius: BorderRadius.circular(12.r),
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// Source text
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AnimatedContainer(
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duration: const Duration(milliseconds: 300),
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width: double.infinity,
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padding: EdgeInsets.all(16.r),
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child: Text(
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sourceText.isEmpty && isCurrent ? '等待语音输入...' : sourceText,
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style: TextStyle(
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fontSize: 16.sp,
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color: sourceText.isEmpty && isCurrent ? Colors.grey : Colors.black, // 恢复原来的文字颜色
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fontWeight: FontWeight.normal, // 恢复原来的字重
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),
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),
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),
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// Divider
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Divider(height: 1, thickness: 1, color: Colors.grey[200]),
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// Translated text
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AnimatedContainer(
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duration: const Duration(milliseconds: 300),
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width: double.infinity,
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padding: EdgeInsets.all(16.r),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Expanded(
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child: Text(
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translatedText.isEmpty && isCurrent ? '翻译结果将显示在这里...' : translatedText,
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style: TextStyle(
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fontSize: 16.sp,
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color: translatedText.isEmpty && isCurrent ? Colors.grey : Colors.black, // 恢复原来的文字颜色
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fontStyle: FontStyle.normal, // 恢复原来的字体样式
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),
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),
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),
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if (translatedText.isNotEmpty)
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IconButton(
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icon: Icon(
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Icons.volume_up,
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color: Colors.blue, // 恢复原来的图标颜色
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size: 20.sp,
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),
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onPressed: () {
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if (isCurrent) {
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controller.playTranslatedText(translatedText);
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} else if (item != null) {
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controller.playTranslationItem(item);
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}
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},
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),
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],
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),
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),
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],
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),
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);
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}
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Widget _buildControlBar() {
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// 使用GlobalKey来获取控制栏的高度
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final controlBarKey = GlobalKey();
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// 在构建完成后获取控制栏的高度并设置到控制器中
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (controlBarKey.currentContext != null) {
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final RenderBox renderBox = controlBarKey.currentContext!.findRenderObject() as RenderBox;
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final height = renderBox.size.height;
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controller.setBottomBarHeight(height);
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}
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});
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return Container(
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key: controlBarKey,
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padding: EdgeInsets.symmetric(horizontal: 16.w, vertical: 16.h),
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decoration: BoxDecoration(
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color: Colors.white,
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boxShadow: [
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BoxShadow(
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color: Colors.black.withAlpha(13), // 0.05 * 255 ≈ 13
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blurRadius: 4,
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offset: const Offset(0, -2),
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),
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],
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),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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// 主要控制按钮 - 开始/暂停语音识别
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Obx(() {
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final isRecognizing = controller.isRecognizing.value;
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return GestureDetector(
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onTap: () {
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if (isRecognizing) {
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controller.stopAll();
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} else {
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controller.startRecognition();
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}
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},
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child: Container(
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width: 60.w,
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height: 60.w,
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decoration: BoxDecoration(
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color: isRecognizing ? Colors.red : Colors.blue,
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shape: BoxShape.circle,
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),
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child: Icon(
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isRecognizing ? Icons.pause : Icons.play_arrow,
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color: Colors.white,
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size: 30.sp,
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),
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),
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);
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}),
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],
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),
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);
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}
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// 显示语言选择对话框
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void _showLanguageSelectionDialog(bool isSource) {
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Get.dialog(
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Dialog(
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(24.r),
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),
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insetPadding: EdgeInsets.symmetric(horizontal: 20.w),
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backgroundColor: Colors.white,
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child: Container(
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width: 0.9.sw,
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padding: EdgeInsets.only(top: 32.h, bottom: 16.h),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Padding(
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padding: EdgeInsets.symmetric(horizontal: 24.w),
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child: Text(
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'Select Language',
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style: TextStyle(
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fontSize: 32.sp,
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fontWeight: FontWeight.bold,
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color: Colors.black,
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),
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),
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),
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SizedBox(height: 24.h),
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Container(
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constraints: BoxConstraints(
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maxHeight: 0.6.sh,
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),
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child: SingleChildScrollView(
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physics: BouncingScrollPhysics(),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: controller.supportedLanguages.keys.map((language) {
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final isSelected = isSource
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? controller.sourceLanguage.value == language
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: controller.targetLanguage.value == language;
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return _buildLanguageItem(
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language: language.split(' ')[0],
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isSelected: isSelected,
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onTap: () {
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if (isSource) {
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controller.setSourceLanguage(language);
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} else {
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controller.setTargetLanguage(language);
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}
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Get.back();
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},
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);
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}).toList(),
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),
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),
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),
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SizedBox(height: 24.h),
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GestureDetector(
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onTap: () => Get.back(),
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child: Container(
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margin: EdgeInsets.symmetric(horizontal: 16.w),
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width: double.infinity,
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padding: EdgeInsets.symmetric(vertical: 16.h),
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alignment: Alignment.center,
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decoration: BoxDecoration(
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color: Colors.grey[200],
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borderRadius: BorderRadius.circular(12.r),
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),
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child: Text(
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'Cancel',
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style: TextStyle(
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fontSize: 18.sp,
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fontWeight: FontWeight.w500,
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color: Colors.black87,
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),
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),
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),
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),
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],
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),
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),
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),
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barrierDismissible: true,
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);
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}
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// 构建语言选择项
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Widget _buildLanguageItem({
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required String language,
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required bool isSelected,
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required VoidCallback onTap,
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}) {
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return GestureDetector(
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onTap: onTap,
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child: Container(
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padding: EdgeInsets.symmetric(horizontal: 24.w, vertical: 16.h),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Text(
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language,
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style: TextStyle(
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fontSize: 20.sp,
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fontWeight: FontWeight.normal,
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color: Colors.black,
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),
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),
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Container(
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width: 28.w,
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height: 28.w,
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(4.r),
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border: Border.all(
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color: isSelected ? Colors.transparent : Colors.grey[300]!,
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width: 1.5,
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),
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color: isSelected ? Color(0xFF6C5CE7) : Colors.white,
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),
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child: isSelected
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? Icon(
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Icons.check,
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color: Colors.white,
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size: 20.sp,
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)
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: null,
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),
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],
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),
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),
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);
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}
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}
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