140 lines
3.6 KiB
TypeScript
140 lines
3.6 KiB
TypeScript
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import media from '@ohos.multimedia.media';
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const TAG = 'VoiceAnnounce'
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export default class VoiceAnnounce{
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//队列时候立马终止
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private isStopped:Boolean
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private queue:String[]
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private newQueue:String[]
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private pendingQueue:String[]
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constructor() {
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this.isStopped = false;
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this.queue = []
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}
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async playAudio(urls:string[],shit){
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const {isStopped,queue} = this;
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if(shit){
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//队列清空，重新初始化
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this.isStopped = true;
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this.newQueue = urls
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}
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if(queue.length){
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//队列续上
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this.queue = this.queue.concat(urls);
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}else{
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console.info(TAG,this.isStopped);
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this.queue = urls
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await this.executeQueue()
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}
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}
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async executeQueue(){
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const avPlayer = new AVPlayer();
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const go = async () => {
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const {queue} = this;
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console.info(TAG,JSON.stringify(queue))
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for (const url of queue) {
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const {isStopped,queue,newQueue} = this
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if(isStopped){
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//清空原来队列
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this.queue = newQueue
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this.isStopped = false;
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await go()
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break;
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}
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const result = await avPlayer.play(url);
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this.queue.shift()
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break;
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}
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if(this.queue.length){
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await go()
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}
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}
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await go()
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avPlayer.avPlayerStop();
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}
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}
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class AVPlayer {
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public avPlayer:any = null;
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private voiceUrl: string[];
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private voiceStatus: 'completed' | 'playing'
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constructor() {}
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// 以下为使用资源管理接口获取打包在HAP内的媒体资源文件并通过fdSrc属性进行播放示例
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async play(name) {
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const avPlayer = await media.createAVPlayer();
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this.avPlayer = avPlayer;
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return new Promise(async (resolve)=>{
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await this.setAVPlayerCallback(()=>{
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//@ts-ignore
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resolve()
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});
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const url = await globalThis.context.resourceManager.getRawFd(name,)
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this.avPlayer.fdSrc = url;
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})
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}
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//音频播放队列
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public releasePlayer() {
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this.avPlayer.release();
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}
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avPlayerStop() {
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this.avPlayer && this.avPlayer.stop()
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this.avPlayer && this.avPlayer.reset()
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this.avPlayer && this.avPlayer.release()
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}
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// 注册avplayer回调函数
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setAVPlayerCallback(callBack) {
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this.avPlayer.on('error', (err) => {
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this.avPlayer.reset(); // 调用reset重置资源，触发idle状态
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})
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let num = 0;
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// 状态机变化回调函数
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this.avPlayer.on('stateChange', async (state, reason) => {
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const {voiceUrl}= this;
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switch (state) {
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case 'idle': // 成功调用reset接口后触发该状态机上报
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break;
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case 'initialized': // avplayer 设置播放源后触发该状态上报
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this.avPlayer.prepare()
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break;
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case 'prepared': // prepare调用成功后上报该状态机
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this.avPlayer.play();
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this.voiceStatus = 'playing'
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break;
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case 'playing': // play成功调用后触发该状态机上报
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break;
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case 'paused': // pause成功调用后触发该状态机上报
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break;
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case 'completed': // 播放结束后触发该状态机上报
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this.voiceStatus = 'completed'
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this.avPlayer.stop(); //调用播放结束接口
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break;
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case 'stopped': // stop接口成功调用后触发该状态机上报
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console.info(TAG,'播放释放')
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this.avPlayer.reset(); // 调用reset接口初始化avplayer状态
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callBack()
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break;
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case 'released':
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break;
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default:
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break;
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}
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})
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}
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}
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