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1182 lines
38 KiB
1182 lines
38 KiB
<template>
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<view class="audio-controls-wrapper">
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<!-- 获取音频按钮 -->
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<view v-if="!hasAudioData && !isAudioLoading && isTextPage" class="audio-get-button-container">
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<view class="get-audio-btn" @click="handleGetAudio">
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<uv-icon name="play-circle" size="24" color="#06DADC"></uv-icon>
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<text class="get-audio-text">获取第{{currentPage}}页音频</text>
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</view>
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</view>
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<!-- 音频加载状态 -->
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<view v-else-if="isAudioLoading && isTextPage" class="audio-loading-container">
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<uv-loading-icon mode="spinner" size="30" color="#06DADC"></uv-loading-icon>
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<text class="loading-text">正在加载第{{currentPage}}页音频...</text>
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</view>
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<!-- 正常音频控制栏 -->
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<view v-else-if="hasAudioData" class="audio-controls" :class="{ 'audio-hidden': !isTextPage }">
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<view class="audio-time">
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<text class="time-text">{{ formatTime(currentTime) }}</text>
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<view class="progress-container">
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<uv-slider
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v-model="sliderValue"
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:min="0"
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:max="totalTime"
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:step="0.1"
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activeColor="#06DADC"
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backgroundColor="#e0e0e0"
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:blockSize="16"
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blockColor="#ffffff"
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:disabled="!hasAudioData || totalTime <= 0"
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@input="onSliderInput"
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@changing="onSliderChanging"
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@change="onSliderChange"
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:customStyle="{ flex: 1, margin: '0 10px' }"
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/>
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</view>
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<text class="time-text">{{ formatTime(totalTime) }}</text>
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</view>
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<view class="audio-controls-row">
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<view class="control-btn" @click="toggleLoop">
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<uv-icon name="reload" size="20" :color="isLoop ? '#06DADC' : '#999'"></uv-icon>
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<text class="control-text">循环</text>
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</view>
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<view class="control-btn" @click="$emit('previous-page')">
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<text class="control-text">上一页</text>
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</view>
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<view class="play-btn" @click="togglePlay">
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<uv-icon :name="isPlaying ? 'pause-circle-fill' : 'play-circle-fill'" size="40" color="#666"></uv-icon>
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</view>
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<view class="control-btn" @click="$emit('next-page')">
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<text class="control-text">下一页</text>
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</view>
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<view class="control-btn" @click="toggleSpeed" :class="{ 'disabled': !playbackRateSupported }">
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<text class="control-text" :style="{ opacity: playbackRateSupported ? 1 : 0.5 }">
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{{ playbackRateSupported ? playSpeed + 'x' : '不支持' }}
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</text>
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</view>
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</view>
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</view>
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</view>
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</template>
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<script>
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import config from '@/mixins/config.js'
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export default {
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name: 'AudioControls',
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mixins: [config],
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props: {
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// 基础数据
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currentPage: {
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type: Number,
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default: 1
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},
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courseId: {
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type: String,
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default: ''
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},
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voiceId: {
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type: String,
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default: ''
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},
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bookPages: {
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type: Array,
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default: () => []
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},
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isTextPage: {
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type: Boolean,
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default: false
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}
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},
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data() {
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return {
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// 音频控制相关数据
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isPlaying: false,
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currentTime: 0,
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totalTime: 0,
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sliderValue: 0, // 滑動條的值
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isDragging: false, // 是否正在拖動滑動條
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isLoop: false,
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playSpeed: 1.0,
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speedOptions: [0.5, 0.8, 1.0, 1.25, 1.5, 2.0], // 根據uni-app文檔的官方支持值
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playbackRateSupported: true, // 播放速度控制是否支持
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// 音频数组管理
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currentPageAudios: [], // 当前页面的音频数组
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currentAudioIndex: 0, // 当前播放的音频索引
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audioContext: null, // 音频上下文
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currentAudio: null, // 当前音频实例
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// 音频缓存管理
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audioCache: {}, // 页面音频缓存 {pageIndex: {audios: [], totalDuration: 0}}
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// 音频加载状态
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isAudioLoading: false, // 音频是否正在加载
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hasAudioData: false, // 当前页面是否已有音频数据
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// 文本高亮相关
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currentHighlightIndex: -1, // 当前高亮的文本索引
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}
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},
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computed: {
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// 计算音频播放进度百分比
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progressPercent() {
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return this.totalTime > 0 ? (this.currentTime / this.totalTime) * 100 : 0;
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}
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},
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watch: {
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// 监听页面变化，重置音频状态
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currentPage: {
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handler(newPage, oldPage) {
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if (newPage !== oldPage) {
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this.resetAudioState();
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}
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},
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immediate: false
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},
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// 监听音色变化，清除缓存
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voiceId: {
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handler(newVoiceId, oldVoiceId) {
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if (newVoiceId !== oldVoiceId && oldVoiceId) {
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this.clearAudioCache();
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this.resetAudioState();
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}
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}
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}
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},
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methods: {
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// 获取当前页面的音频内容
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async getCurrentPageAudio() {
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// 检查缓存中是否已有当前页面的音频数据
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const cacheKey = `${this.courseId}_${this.currentPage}`;
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if (this.audioCache[cacheKey]) {
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console.log('从缓存加载音频数据:', cacheKey);
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// 从缓存加载音频数据
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this.currentPageAudios = this.audioCache[cacheKey].audios;
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this.totalTime = this.audioCache[cacheKey].totalDuration;
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this.currentAudioIndex = 0;
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this.isPlaying = false;
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this.currentTime = 0;
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return;
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}
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// 开始加载状态
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this.isAudioLoading = true;
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// 清空当前页面音频数组
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this.currentPageAudios = [];
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this.currentAudioIndex = 0;
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this.isPlaying = false;
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this.currentTime = 0;
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this.totalTime = 0;
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// 对着当前页面的每一个[]元素进行切割 如果是文本text类型则进行音频请求
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const currentPageData = this.bookPages[this.currentPage - 1];
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if (currentPageData) {
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// 收集所有text类型的元素
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const textItems = currentPageData.filter(item => item.type === 'text');
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if (textItems.length > 0) {
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// 并行发送所有音频请求
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const audioPromises = textItems.map(async (item, index) => {
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try {
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// 进行音频请求 - 修正字段名：使用content而不是text
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const radioRes = await this.$api.music.textToVoice({
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text: item.content,
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voiceType: this.voiceId,
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});
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console.log(`音频请求响应 ${index + 1}:`, radioRes);
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if(radioRes.code === 200){
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// 新格式：API直接返回音頻URL
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const audioUrl = radioRes.result.audio;
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// 檢查API是否返回時長信息
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const duration = radioRes.result.duration || 0;
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// 同时保存到原始数据中以保持兼容性
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item.audioUrl = audioUrl;
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console.log(`音频URL设置成功 ${index + 1}:`, audioUrl, '时长:', duration);
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return {
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url: audioUrl,
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text: item.content,
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duration: duration, // 優先使用API返回的時長
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index: index // 保持原始顺序
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};
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} else {
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console.error(`音频请求失败 ${index + 1}:`, radioRes);
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return null;
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}
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} catch (error) {
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console.error(`音频请求异常 ${index + 1}:`, error);
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return null;
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}
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});
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// 等待所有音频请求完成
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const audioResults = await Promise.all(audioPromises);
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// 按原始顺序添加到音频数组中，过滤掉失败的请求
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this.currentPageAudios = audioResults
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.filter(result => result !== null)
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.sort((a, b) => a.index - b.index)
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.map(result => ({
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url: result.url,
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text: result.text,
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duration: result.duration
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}));
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console.log('所有音频请求完成，共获取', this.currentPageAudios.length, '个音频');
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}
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// 如果有音频，计算总时长
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if (this.currentPageAudios.length > 0) {
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await this.calculateTotalDuration();
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// 将音频数据保存到缓存中
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const cacheKey = `${this.courseId}_${this.currentPage}`;
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this.audioCache[cacheKey] = {
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audios: [...this.currentPageAudios], // 深拷贝音频数组
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totalDuration: this.totalTime
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};
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console.log('音频数据已缓存:', cacheKey, this.audioCache[cacheKey]);
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// 限制缓存大小
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this.limitCacheSize(10);
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}
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}
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// 结束加载状态
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this.isAudioLoading = false;
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// 设置音频数据状态
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this.hasAudioData = this.currentPageAudios.length > 0;
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// 通知父组件音频状态变化
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this.$emit('audio-state-change', {
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hasAudioData: this.hasAudioData,
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isLoading: this.isAudioLoading,
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currentHighlightIndex: this.currentHighlightIndex
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});
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},
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// 重置音频状态
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resetAudioState() {
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// 检查当前页面是否已有缓存的音频数据
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const pageKey = `${this.courseId}_${this.currentPage}`;
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const cachedAudio = this.audioCache[pageKey];
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if (cachedAudio && cachedAudio.audios && cachedAudio.audios.length > 0) {
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// 如果有缓存的音频数据，恢复音频状态
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this.currentPageAudios = cachedAudio.audios;
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this.totalTime = cachedAudio.totalDuration || 0;
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this.hasAudioData = true;
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} else {
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// 如果没有缓存的音频数据，重置为初始状态
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this.currentPageAudios = [];
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this.totalTime = 0;
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this.hasAudioData = false;
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}
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// 重置播放状态，翻頁時統一設置播放速度為1.0
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this.currentAudioIndex = 0;
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this.isPlaying = false;
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this.currentTime = 0;
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this.isAudioLoading = false;
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this.currentHighlightIndex = -1;
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// 翻頁時強制設置播放速度為1.0（適應微信小程序特性）
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this.playSpeed = 1.0;
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// 通知父组件音频状态变化
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this.$emit('audio-state-change', {
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hasAudioData: this.hasAudioData,
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isLoading: this.isAudioLoading,
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currentHighlightIndex: this.currentHighlightIndex
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});
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},
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// 手动获取音频
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async handleGetAudio() {
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// 检查是否有音色ID
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if (!this.voiceId) {
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uni.showToast({
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title: '音色未加载，请稍后重试',
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icon: 'none'
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});
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return;
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}
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// 检查当前页面是否有文本内容
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if (!this.isTextPage) {
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uni.showToast({
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title: '当前页面没有文本内容',
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icon: 'none'
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});
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return;
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}
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// 检查是否正在加载
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if (this.isAudioLoading) {
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return;
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}
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// 调用获取音频方法
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await this.getCurrentPageAudio();
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},
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// 计算音频总时长
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async calculateTotalDuration() {
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let totalDuration = 0;
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for (let i = 0; i < this.currentPageAudios.length; i++) {
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const audio = this.currentPageAudios[i];
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// 優先使用API返回的時長信息
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if (audio.duration && audio.duration > 0) {
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console.log(`使用API返回的時長 ${i + 1}:`, audio.duration, '秒');
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totalDuration += audio.duration;
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continue;
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}
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// 如果沒有API時長信息，嘗試獲取音頻時長
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try {
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const duration = await this.getAudioDuration(audio.url);
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audio.duration = duration;
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totalDuration += duration;
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console.log(`獲取到音頻時長 ${i + 1}:`, duration, '秒');
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} catch (error) {
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console.error('获取音频时长失败:', error);
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// 如果无法获取时长，根據文字長度估算（更精確的估算）
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const textLength = audio.text.length;
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// 假設每分鐘可以讀150-200個字符，這裡用180作為平均值
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const estimatedDuration = Math.max(2, textLength / 3); // 每3個字符約1秒
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audio.duration = estimatedDuration;
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totalDuration += estimatedDuration;
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console.log(`估算音頻時長 ${i + 1}:`, estimatedDuration, '秒 (文字長度:', textLength, ')');
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}
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}
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this.totalTime = totalDuration;
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console.log('音频总时长:', totalDuration, '秒');
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},
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// 获取音频时长
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getAudioDuration(audioUrl) {
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return new Promise((resolve, reject) => {
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const audio = uni.createInnerAudioContext();
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audio.src = audioUrl;
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let resolved = false;
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// 监听音频加载完成事件
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audio.onCanplay(() => {
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console.log('音频可以播放，duration:', audio.duration);
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if (!resolved && audio.duration && audio.duration > 0) {
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resolved = true;
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resolve(audio.duration);
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audio.destroy();
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}
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});
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// 监听音频元数据加载完成事件
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audio.onLoadedmetadata = () => {
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console.log('音频元数据加载完成，duration:', audio.duration);
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if (!resolved && audio.duration && audio.duration > 0) {
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resolved = true;
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resolve(audio.duration);
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audio.destroy();
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}
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};
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// 监听音频时长更新事件
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audio.onDurationChange = () => {
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console.log('音频时长更新，duration:', audio.duration);
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if (!resolved && audio.duration && audio.duration > 0) {
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resolved = true;
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resolve(audio.duration);
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audio.destroy();
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}
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};
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// 如果以上方法都無法獲取時長，嘗試播放一小段來獲取時長
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audio.onPlay(() => {
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console.log('音频开始播放，duration:', audio.duration);
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if (!resolved) {
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setTimeout(() => {
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if (!resolved && audio.duration && audio.duration > 0) {
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resolved = true;
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resolve(audio.duration);
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audio.destroy();
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}
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}, 100); // 播放100ms後檢查時長
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}
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});
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audio.onError((error) => {
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console.error('音频加载失败:', error);
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if (!resolved) {
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resolved = true;
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reject(error);
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audio.destroy();
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}
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});
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// 設置較長的超時時間，並在超時前嘗試播放
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setTimeout(() => {
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if (!resolved) {
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console.log('嘗試播放音頻以獲取時長');
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audio.play();
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}
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}, 1000);
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// 最終超時處理
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setTimeout(() => {
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if (!resolved) {
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console.warn('獲取音頻時長超時，使用默認值');
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resolved = true;
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reject(new Error('获取音频时长超时'));
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audio.destroy();
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}
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}, 5000);
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});
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},
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// 音频控制方法
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togglePlay() {
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if (this.currentPageAudios.length === 0) {
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uni.showToast({
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title: '当前页面没有音频内容',
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icon: 'none'
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});
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return;
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}
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if (this.isPlaying) {
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this.pauseAudio();
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} else {
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this.playAudio();
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}
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},
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// 播放音频
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playAudio() {
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if (this.currentPageAudios.length === 0) return;
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// 如果没有当前音频实例或者需要切换音频
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if (!this.currentAudio || this.currentAudio.src !== this.currentPageAudios[this.currentAudioIndex].url) {
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this.createAudioInstance();
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}
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this.currentAudio.play();
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this.isPlaying = true;
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// 更新高亮状态
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this.updateHighlightIndex();
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},
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// 暂停音频
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pauseAudio() {
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if (this.currentAudio) {
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this.currentAudio.pause();
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}
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this.isPlaying = false;
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// 暂停时清除高亮
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this.currentHighlightIndex = -1;
|
|
// 通知父组件高亮状态变化
|
|
this.$emit('highlight-change', -1);
|
|
},
|
|
|
|
// 创建音频实例
|
|
createAudioInstance() {
|
|
// 销毁之前的音频实例
|
|
if (this.currentAudio) {
|
|
this.currentAudio.destroy();
|
|
}
|
|
|
|
// 優先使用微信原生API以支持playbackRate
|
|
let audio;
|
|
if (typeof wx !== 'undefined' && wx.createInnerAudioContext) {
|
|
console.log('使用微信原生音頻API');
|
|
audio = wx.createInnerAudioContext();
|
|
} else {
|
|
console.log('使用uni-app音頻API');
|
|
audio = uni.createInnerAudioContext();
|
|
}
|
|
audio.src = this.currentPageAudios[this.currentAudioIndex].url;
|
|
|
|
// 在音頻可以播放時檢測playbackRate支持
|
|
audio.onCanplay(() => {
|
|
console.log('🎵 音頻可以播放，開始檢測playbackRate支持');
|
|
this.checkPlaybackRateSupport(audio);
|
|
|
|
// 檢測完成後，設置用戶期望的播放速度
|
|
setTimeout(() => {
|
|
if (this.playbackRateSupported) {
|
|
console.log('設置播放速度:', this.playSpeed);
|
|
audio.playbackRate = this.playSpeed;
|
|
|
|
// 驗證設置結果
|
|
setTimeout(() => {
|
|
console.log('最終播放速度:', audio.playbackRate);
|
|
if (Math.abs(audio.playbackRate - this.playSpeed) > 0.01) {
|
|
console.log('⚠️ 播放速度設置可能未生效');
|
|
} else {
|
|
console.log('✅ 播放速度設置成功');
|
|
}
|
|
}, 50);
|
|
} else {
|
|
console.log('❌ 當前環境不支持播放速度控制');
|
|
}
|
|
}, 50);
|
|
});
|
|
|
|
// 音频事件监听
|
|
audio.onPlay(() => {
|
|
console.log('音频开始播放');
|
|
this.isPlaying = true;
|
|
});
|
|
|
|
audio.onPause(() => {
|
|
console.log('音频暂停');
|
|
this.isPlaying = false;
|
|
});
|
|
|
|
audio.onTimeUpdate(() => {
|
|
this.updateCurrentTime();
|
|
});
|
|
|
|
audio.onEnded(() => {
|
|
console.log('当前音频播放结束');
|
|
this.onAudioEnded();
|
|
});
|
|
|
|
audio.onError((error) => {
|
|
console.error('音频播放错误:', error);
|
|
this.isPlaying = false;
|
|
uni.showToast({
|
|
title: '音频播放失败',
|
|
icon: 'none'
|
|
});
|
|
});
|
|
|
|
this.currentAudio = audio;
|
|
},
|
|
|
|
// 更新当前播放时间
|
|
updateCurrentTime() {
|
|
if (!this.currentAudio) return;
|
|
|
|
let totalTime = 0;
|
|
// 计算之前音频的总时长
|
|
for (let i = 0; i < this.currentAudioIndex; i++) {
|
|
totalTime += this.currentPageAudios[i].duration;
|
|
}
|
|
// 加上当前音频的播放时间
|
|
totalTime += this.currentAudio.currentTime;
|
|
|
|
this.currentTime = totalTime;
|
|
|
|
// 如果不是正在拖動滑動條，則同步更新滑動條的值
|
|
if (!this.isDragging) {
|
|
this.sliderValue = this.currentTime;
|
|
}
|
|
|
|
// 更新当前高亮的文本索引
|
|
this.updateHighlightIndex();
|
|
},
|
|
|
|
// 更新高亮文本索引
|
|
updateHighlightIndex() {
|
|
if (!this.isPlaying || this.currentPageAudios.length === 0) {
|
|
this.currentHighlightIndex = -1;
|
|
this.$emit('highlight-change', -1);
|
|
return;
|
|
}
|
|
|
|
// 根据当前播放的音频索引设置高亮
|
|
this.currentHighlightIndex = this.currentAudioIndex;
|
|
console.log('更新高亮索引:', this.currentHighlightIndex, '当前音频索引:', this.currentAudioIndex);
|
|
|
|
// 通知父组件高亮状态变化
|
|
this.$emit('highlight-change', this.currentHighlightIndex);
|
|
},
|
|
|
|
// 音频播放结束处理
|
|
onAudioEnded() {
|
|
if (this.currentAudioIndex < this.currentPageAudios.length - 1) {
|
|
// 播放下一个音频
|
|
this.currentAudioIndex++;
|
|
this.playAudio();
|
|
} else {
|
|
// 所有音频播放完毕
|
|
if (this.isLoop) {
|
|
// 循环播放
|
|
this.currentAudioIndex = 0;
|
|
this.playAudio();
|
|
} else {
|
|
// 停止播放
|
|
this.isPlaying = false;
|
|
this.currentTime = this.totalTime;
|
|
this.currentHighlightIndex = -1;
|
|
this.$emit('highlight-change', -1);
|
|
}
|
|
}
|
|
},
|
|
|
|
toggleLoop() {
|
|
this.isLoop = !this.isLoop;
|
|
},
|
|
|
|
toggleSpeed() {
|
|
// 檢查是否支持播放速度控制
|
|
if (!this.playbackRateSupported) {
|
|
uni.showToast({
|
|
title: '當前設備不支持播放速度控制',
|
|
icon: 'none',
|
|
duration: 2000
|
|
});
|
|
return;
|
|
}
|
|
|
|
const currentIndex = this.speedOptions.indexOf(this.playSpeed);
|
|
const nextIndex = (currentIndex + 1) % this.speedOptions.length;
|
|
const oldSpeed = this.playSpeed;
|
|
this.playSpeed = this.speedOptions[nextIndex];
|
|
|
|
console.log(`播放速度切換: ${oldSpeed}x -> ${this.playSpeed}x`);
|
|
|
|
// 如果当前有音频在播放，更新播放速度
|
|
if (this.currentAudio) {
|
|
const wasPlaying = this.isPlaying;
|
|
const currentTime = this.currentAudio.currentTime;
|
|
|
|
// 設置新的播放速度
|
|
this.currentAudio.playbackRate = this.playSpeed;
|
|
|
|
// 如果正在播放，需要重啟播放才能使播放速度生效
|
|
if (wasPlaying) {
|
|
this.currentAudio.pause();
|
|
setTimeout(() => {
|
|
this.currentAudio.seek(currentTime);
|
|
this.currentAudio.play();
|
|
}, 50);
|
|
}
|
|
|
|
console.log('音頻實例播放速度已更新為:', this.currentAudio.playbackRate);
|
|
|
|
// 顯示速度變更提示
|
|
uni.showToast({
|
|
title: `播放速度: ${this.playSpeed}x`,
|
|
icon: 'none',
|
|
duration: 1000
|
|
});
|
|
}
|
|
},
|
|
|
|
// 滑動條值實時更新 (@input 事件)
|
|
onSliderInput(value) {
|
|
// 在拖動過程中實時更新顯示的時間，但不影響實際播放
|
|
if (this.isDragging) {
|
|
// 可以在這裡實時更新顯示時間，讓用戶看到拖動到的時間點
|
|
// 但不改變實際的 currentTime，避免影響播放邏輯
|
|
console.log('實時更新滑動條值:', value);
|
|
}
|
|
},
|
|
|
|
// 滑動條拖動過程中的處理 (@changing 事件)
|
|
onSliderChanging(value) {
|
|
// 第一次觸發 changing 事件時，暫停播放並標記為拖動狀態
|
|
if (!this.isDragging) {
|
|
if (this.isPlaying) {
|
|
this.pauseAudio();
|
|
console.log('開始拖動滑動條，暫停播放');
|
|
}
|
|
this.isDragging = true;
|
|
}
|
|
|
|
// 更新滑動條的值，但不改變實際播放位置
|
|
this.sliderValue = value;
|
|
console.log('拖動中，滑動條值:', value);
|
|
},
|
|
|
|
// 滑動條拖動結束的處理 (@change 事件)
|
|
onSliderChange(value) {
|
|
console.log('滑動條變化，跳轉到位置:', value, '是否為拖動:', this.isDragging);
|
|
|
|
// 如果不是拖動狀態（即單點），需要先暫停播放
|
|
if (!this.isDragging && this.isPlaying) {
|
|
this.pauseAudio();
|
|
console.log('單點滑動條，暫停播放');
|
|
}
|
|
|
|
// 重置拖動狀態
|
|
this.isDragging = false;
|
|
this.sliderValue = value;
|
|
|
|
// 跳轉到指定位置，但不自動恢復播放
|
|
this.seekToTime(value, false);
|
|
|
|
console.log('滑動條操作完成，保持暫停狀態，需要手動點擊播放');
|
|
},
|
|
|
|
// 跳轉到指定時間
|
|
seekToTime(targetTime, shouldResume = false) {
|
|
if (!this.currentPageAudios || this.currentPageAudios.length === 0) {
|
|
console.log('沒有音頻數據，無法跳轉');
|
|
return;
|
|
}
|
|
|
|
// 確保目標時間在有效範圍內
|
|
targetTime = Math.max(0, Math.min(targetTime, this.totalTime));
|
|
console.log('跳轉到時間:', targetTime, '秒', '總時長:', this.totalTime, '是否恢復播放:', shouldResume);
|
|
|
|
let accumulatedTime = 0;
|
|
let targetAudioIndex = -1;
|
|
let targetAudioTime = 0;
|
|
|
|
// 找到目標時間對應的音頻片段
|
|
for (let i = 0; i < this.currentPageAudios.length; i++) {
|
|
const audioDuration = this.currentPageAudios[i].duration || 0;
|
|
console.log(`音頻片段 ${i}: 時長=${audioDuration}, 累計時間=${accumulatedTime}, 範圍=[${accumulatedTime}, ${accumulatedTime + audioDuration}]`);
|
|
|
|
if (targetTime >= accumulatedTime && targetTime <= accumulatedTime + audioDuration) {
|
|
targetAudioIndex = i;
|
|
targetAudioTime = targetTime - accumulatedTime;
|
|
break;
|
|
}
|
|
accumulatedTime += audioDuration;
|
|
}
|
|
|
|
// 如果沒有找到合適的音頻片段，使用最後一個
|
|
if (targetAudioIndex === -1 && this.currentPageAudios.length > 0) {
|
|
targetAudioIndex = this.currentPageAudios.length - 1;
|
|
targetAudioTime = this.currentPageAudios[targetAudioIndex].duration || 0;
|
|
console.log('使用最後一個音頻片段作為目標');
|
|
}
|
|
|
|
console.log('目標音頻索引:', targetAudioIndex, '目標音頻時間:', targetAudioTime);
|
|
|
|
if (targetAudioIndex === -1) {
|
|
console.error('無法找到目標音頻片段');
|
|
return;
|
|
}
|
|
|
|
// 如果需要切換到不同的音頻片段
|
|
if (targetAudioIndex !== this.currentAudioIndex) {
|
|
console.log(`切換音頻片段: ${this.currentAudioIndex} -> ${targetAudioIndex}`);
|
|
this.currentAudioIndex = targetAudioIndex;
|
|
this.createAudioInstance();
|
|
|
|
// 等待音頻實例創建完成後再跳轉
|
|
this.waitForAudioReady(() => {
|
|
if (this.currentAudio) {
|
|
this.currentAudio.seek(targetAudioTime);
|
|
this.currentTime = targetTime;
|
|
console.log('切換音頻並跳轉到:', targetAudioTime, '秒');
|
|
|
|
// 如果拖動前正在播放，則恢復播放
|
|
if (shouldResume) {
|
|
this.currentAudio.play();
|
|
this.isPlaying = true;
|
|
console.log('恢復播放狀態');
|
|
}
|
|
}
|
|
});
|
|
} else {
|
|
// 在當前音頻片段內跳轉
|
|
if (this.currentAudio) {
|
|
this.currentAudio.seek(targetAudioTime);
|
|
this.currentTime = targetTime;
|
|
console.log('在當前音頻內跳轉到:', targetAudioTime, '秒');
|
|
|
|
// 如果拖動前正在播放，則恢復播放
|
|
if (shouldResume) {
|
|
this.currentAudio.play();
|
|
this.isPlaying = true;
|
|
console.log('恢復播放狀態');
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
// 等待音頻實例準備就緒
|
|
waitForAudioReady(callback, maxAttempts = 10, currentAttempt = 0) {
|
|
if (currentAttempt >= maxAttempts) {
|
|
console.error('音頻實例準備超時');
|
|
return;
|
|
}
|
|
|
|
if (this.currentAudio && this.currentAudio.src) {
|
|
// 音頻實例已準備好
|
|
setTimeout(callback, 50); // 稍微延遲確保完全準備好
|
|
} else {
|
|
// 繼續等待
|
|
setTimeout(() => {
|
|
this.waitForAudioReady(callback, maxAttempts, currentAttempt + 1);
|
|
}, 100);
|
|
}
|
|
},
|
|
|
|
// 初始檢測播放速度支持（不依賴音頻實例）
|
|
checkInitialPlaybackRateSupport() {
|
|
try {
|
|
const systemInfo = uni.getSystemInfoSync();
|
|
console.log('初始檢測 - 系統信息:', systemInfo);
|
|
|
|
// 檢查基礎庫版本 - playbackRate需要2.11.0及以上
|
|
const SDKVersion = systemInfo.SDKVersion || '0.0.0';
|
|
const versionArray = SDKVersion.split('.').map(v => parseInt(v));
|
|
const isVersionSupported = versionArray[0] > 2 ||
|
|
(versionArray[0] === 2 && versionArray[1] > 11) ||
|
|
(versionArray[0] === 2 && versionArray[1] === 11 && versionArray[2] >= 0);
|
|
|
|
if (!isVersionSupported) {
|
|
this.playbackRateSupported = false;
|
|
console.log(`初始檢測 - 基礎庫版本過低 (${SDKVersion})，需要2.11.0及以上才支持播放速度控制`);
|
|
return;
|
|
}
|
|
|
|
// Android 6以下版本不支持
|
|
if (systemInfo.platform === 'android') {
|
|
const androidVersion = systemInfo.system.match(/Android (\d+)/);
|
|
if (androidVersion && parseInt(androidVersion[1]) < 6) {
|
|
this.playbackRateSupported = false;
|
|
console.log('初始檢測 - Android版本過低，需要Android 6及以上才支持播放速度控制');
|
|
return;
|
|
}
|
|
}
|
|
|
|
// 檢查微信原生API是否可用
|
|
if (typeof wx === 'undefined' || !wx.createInnerAudioContext) {
|
|
console.log('初始檢測 - 微信原生API不可用，可能影響playbackRate支持');
|
|
} else {
|
|
console.log('初始檢測 - 微信原生API可用');
|
|
}
|
|
|
|
// 如果通過基本檢測，暫時設為支持，等音頻實例創建後再詳細檢測
|
|
this.playbackRateSupported = true;
|
|
console.log('初始檢測 - 基本條件滿足，等待音頻實例檢測');
|
|
|
|
} catch (error) {
|
|
console.error('初始檢測播放速度支持時出錯:', error);
|
|
this.playbackRateSupported = false;
|
|
}
|
|
},
|
|
|
|
// 檢查播放速度控制支持
|
|
checkPlaybackRateSupport(audio) {
|
|
try {
|
|
// 檢查基礎庫版本和平台支持
|
|
const systemInfo = uni.getSystemInfoSync();
|
|
console.log('系統信息:', systemInfo);
|
|
console.log('平台:', systemInfo.platform);
|
|
console.log('基礎庫版本:', systemInfo.SDKVersion);
|
|
console.log('系統版本:', systemInfo.system);
|
|
|
|
// 根據uni-app文檔，微信小程序需要基礎庫2.11.0+才支持playbackRate
|
|
const SDKVersion = systemInfo.SDKVersion || '0.0.0';
|
|
const versionArray = SDKVersion.split('.').map(v => parseInt(v));
|
|
const isVersionSupported = versionArray[0] > 2 ||
|
|
(versionArray[0] === 2 && versionArray[1] > 11) ||
|
|
(versionArray[0] === 2 && versionArray[1] === 11 && versionArray[2] >= 0);
|
|
|
|
console.log('基礎庫版本檢查:', {
|
|
version: SDKVersion,
|
|
parsed: versionArray,
|
|
supported: isVersionSupported
|
|
});
|
|
|
|
if (!isVersionSupported) {
|
|
this.playbackRateSupported = false;
|
|
console.log(`❌ 基礎庫版本不支持 (${SDKVersion})，微信小程序需要2.11.0+才支持playbackRate`);
|
|
return;
|
|
}
|
|
|
|
// Android平台需要6.0+版本支持
|
|
if (systemInfo.platform === 'android') {
|
|
const androidVersion = systemInfo.system.match(/Android (\d+)/);
|
|
console.log('Android版本檢查:', androidVersion);
|
|
if (androidVersion && parseInt(androidVersion[1]) < 6) {
|
|
this.playbackRateSupported = false;
|
|
console.log(`❌ Android版本不支持 (${androidVersion[1]})，需要Android 6+才支持playbackRate`);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// 檢查音頻實例是否支持playbackRate
|
|
console.log('🔍 音頻實例檢查:');
|
|
console.log('- playbackRate初始值:', audio.playbackRate);
|
|
console.log('- playbackRate類型:', typeof audio.playbackRate);
|
|
|
|
// 嘗試設置並檢測是否真正支持
|
|
const testRate = 1.25;
|
|
const originalRate = audio.playbackRate || 1.0;
|
|
|
|
try {
|
|
audio.playbackRate = testRate;
|
|
console.log('- 設置測試速度:', testRate);
|
|
console.log('- 設置後的值:', audio.playbackRate);
|
|
|
|
// 檢查設置是否生效
|
|
if (Math.abs(audio.playbackRate - testRate) < 0.01) {
|
|
this.playbackRateSupported = true;
|
|
console.log('✅ playbackRate功能正常');
|
|
} else {
|
|
this.playbackRateSupported = false;
|
|
console.log('❌ playbackRate設置無效，可能不被支持');
|
|
}
|
|
|
|
} catch (error) {
|
|
this.playbackRateSupported = false;
|
|
console.log('❌ playbackRate設置出錯:', error);
|
|
}
|
|
|
|
} catch (error) {
|
|
console.error('檢查播放速度支持時出錯:', error);
|
|
this.playbackRateSupported = false;
|
|
}
|
|
},
|
|
|
|
formatTime(seconds) {
|
|
const mins = Math.floor(seconds / 60);
|
|
const secs = Math.floor(seconds % 60);
|
|
return `${mins.toString().padStart(2, '0')}:${secs.toString().padStart(2, '0')}`;
|
|
},
|
|
|
|
// 清理音频缓存
|
|
clearAudioCache() {
|
|
this.audioCache = {};
|
|
console.log('音频缓存已清理');
|
|
},
|
|
|
|
// 限制缓存大小，保留最近访问的页面
|
|
limitCacheSize(maxSize = 10) {
|
|
const cacheKeys = Object.keys(this.audioCache);
|
|
if (cacheKeys.length > maxSize) {
|
|
// 删除最旧的缓存项
|
|
const keysToDelete = cacheKeys.slice(0, cacheKeys.length - maxSize);
|
|
keysToDelete.forEach(key => {
|
|
delete this.audioCache[key];
|
|
});
|
|
console.log('缓存大小已限制，删除了', keysToDelete.length, '个缓存项');
|
|
}
|
|
},
|
|
|
|
// 自動加載第一頁音頻並播放
|
|
async autoLoadAndPlayFirstPage() {
|
|
try {
|
|
console.log('開始自動加載第一頁音頻');
|
|
|
|
// 確保當前是第一頁且是文字頁面
|
|
if (this.currentPage === 1 && this.isTextPage) {
|
|
console.log('當前是第一頁文字頁面，開始加載音頻');
|
|
|
|
// 加載音頻
|
|
await this.getCurrentPageAudio();
|
|
|
|
// 檢查是否成功加載音頻
|
|
if (this.currentPageAudios && this.currentPageAudios.length > 0) {
|
|
console.log('音頻加載成功，開始自動播放');
|
|
|
|
// 稍微延遲一下確保音頻完全準備好
|
|
setTimeout(() => {
|
|
this.playAudio();
|
|
}, 500);
|
|
} else {
|
|
console.log('第一頁沒有音頻數據');
|
|
}
|
|
} else {
|
|
console.log('當前頁面不是第一頁文字頁面，跳過自動播放');
|
|
}
|
|
} catch (error) {
|
|
console.error('自動加載和播放音頻失敗:', error);
|
|
}
|
|
},
|
|
|
|
// 清理音频资源
|
|
destroyAudio() {
|
|
if (this.currentAudio) {
|
|
this.currentAudio.destroy();
|
|
this.currentAudio = null;
|
|
}
|
|
this.isPlaying = false;
|
|
this.clearAudioCache();
|
|
},
|
|
|
|
// 暂停音频（页面隐藏时调用）
|
|
pauseOnHide() {
|
|
this.pauseAudio();
|
|
}
|
|
},
|
|
mounted() {
|
|
// 初始檢測播放速度支持
|
|
this.checkInitialPlaybackRateSupport();
|
|
|
|
// 监听音色切换事件
|
|
uni.$on('selectVoice', (voiceId) => {
|
|
console.log('音色切換:', this.voiceId, '->', voiceId);
|
|
|
|
// 音色切換時清除所有音頻緩存，因為不同音色的音頻文件不同
|
|
this.clearAudioCache();
|
|
|
|
// 停止當前播放的音頻
|
|
if (this.currentAudio) {
|
|
this.currentAudio.destroy();
|
|
this.currentAudio = null;
|
|
}
|
|
|
|
// 重置音頻狀態
|
|
this.currentPageAudios = [];
|
|
this.totalTime = 0;
|
|
this.hasAudioData = false;
|
|
this.isPlaying = false;
|
|
this.currentTime = 0;
|
|
this.currentAudioIndex = 0;
|
|
this.currentHighlightIndex = -1;
|
|
this.sliderValue = 0;
|
|
this.isDragging = false;
|
|
|
|
// 通知父组件音频状态变化
|
|
this.$emit('audio-state-change', {
|
|
hasAudioData: this.hasAudioData,
|
|
isLoading: this.isAudioLoading,
|
|
currentHighlightIndex: this.currentHighlightIndex
|
|
});
|
|
|
|
// 重新請求當前頁面的音頻數據
|
|
if (this.isTextPage) {
|
|
console.log('音色切換後重新獲取音頻數據');
|
|
this.handleGetAudio();
|
|
}
|
|
});
|
|
},
|
|
|
|
beforeDestroy() {
|
|
// 清理事件监听
|
|
uni.$off('selectVoice');
|
|
// 清理音频资源
|
|
this.destroyAudio();
|
|
}
|
|
}
|
|
</script>
|
|
|
|
<style lang="scss" scoped>
|
|
/* 音频控制栏样式 */
|
|
.audio-controls-wrapper {
|
|
position: relative;
|
|
z-index: 10;
|
|
}
|
|
|
|
.audio-controls {
|
|
background: #fff;
|
|
padding: 20rpx 40rpx;
|
|
border-bottom: 1rpx solid #eee;
|
|
transition: transform 0.3s ease;
|
|
position: relative;
|
|
z-index: 10;
|
|
&.audio-hidden {
|
|
transform: translateY(100%);
|
|
}
|
|
}
|
|
|
|
.audio-time {
|
|
display: flex;
|
|
align-items: center;
|
|
margin-bottom: 20rpx;
|
|
}
|
|
|
|
.time-text {
|
|
font-size: 28rpx;
|
|
color: #999;
|
|
min-width: 80rpx;
|
|
}
|
|
|
|
.progress-container {
|
|
flex: 1;
|
|
margin: 0 20rpx;
|
|
}
|
|
|
|
.audio-controls-row {
|
|
display: flex;
|
|
align-items: center;
|
|
justify-content: space-between;
|
|
}
|
|
|
|
.control-btn {
|
|
display: flex;
|
|
align-items: center;
|
|
padding: 10rpx;
|
|
gap: 8rpx;
|
|
}
|
|
|
|
.control-btn.disabled {
|
|
pointer-events: none;
|
|
opacity: 0.6;
|
|
}
|
|
|
|
.control-text {
|
|
font-size: 28rpx;
|
|
color: #4A4A4A;
|
|
}
|
|
|
|
.play-btn {
|
|
display: flex;
|
|
align-items: center;
|
|
justify-content: center;
|
|
padding: 10rpx;
|
|
}
|
|
|
|
/* 音频加载状态样式 */
|
|
.audio-loading-container {
|
|
background: #fff;
|
|
padding: 40rpx;
|
|
border-bottom: 1rpx solid #eee;
|
|
display: flex;
|
|
flex-direction: column;
|
|
align-items: center;
|
|
justify-content: center;
|
|
gap: 20rpx;
|
|
position: relative;
|
|
z-index: 10;
|
|
}
|
|
|
|
.loading-text {
|
|
font-size: 28rpx;
|
|
color: #999;
|
|
}
|
|
|
|
/* 获取音频按钮样式 */
|
|
.audio-get-button-container {
|
|
background: rgba(255, 255, 255, 0.95);
|
|
backdrop-filter: blur(10px);
|
|
padding: 30rpx;
|
|
border-radius: 20rpx;
|
|
border: 2rpx solid #E5E5E5;
|
|
transition: all 0.3s ease;
|
|
position: relative;
|
|
z-index: 10;
|
|
}
|
|
|
|
.get-audio-btn {
|
|
display: flex;
|
|
align-items: center;
|
|
justify-content: center;
|
|
gap: 16rpx;
|
|
padding: 20rpx 40rpx;
|
|
background: linear-gradient(135deg, #06DADC 0%, #04B8BA 100%);
|
|
border-radius: 50rpx;
|
|
box-shadow: 0 8rpx 20rpx rgba(6, 218, 220, 0.3);
|
|
transition: all 0.3s ease;
|
|
}
|
|
|
|
.get-audio-btn:active {
|
|
transform: scale(0.95);
|
|
box-shadow: 0 4rpx 10rpx rgba(6, 218, 220, 0.2);
|
|
}
|
|
|
|
.get-audio-text {
|
|
font-size: 32rpx;
|
|
color: #FFFFFF;
|
|
font-weight: 500;
|
|
}
|
|
</style>
|