语音自动播报的问题 WeixinJSBridge

ios版微信

start(flag) {
      if(flag==='R'){
        this.audio.src = require('../../../assets/mp3/red.mp3')
      }else if(flag==='Y'){
        this.audio.src = require('../../../assets/mp3/yellow.mp3')
      }
      if (typeof WeixinJSBridge === "undefined") {
          //未执行WeixinJSBridge 开始监听 WeixinJSBridge
          document.addEventListener('WeixinJSBridgeReady',() => {
            document.getElementById('mp3Btn').play();
          }, false);
        } else {
          //已经执行 使用 getNetworkType 调用获取网络类型后执行
          WeixinJSBridge.invoke("getNetworkType", {}, () => {
            document.getElementById('mp3Btn').play();
          });
        }
    },

　　

安卓版微信、安卓、ios版支付宝

<template>
  <div></div>
</template>

<script>

export default {
  name: "App",
  data() {
    return {
      context:null,
      source:null,
      audioBuffer:null,
    };
  },
  mounted() {
  },
  methods: {
    start(flag){
      window.AudioContext = window.AudioContext || window.webkitAudioContext || window.mozAudioContext || window.msAudioContext;
      this.context = new window.AudioContext();
      this.source = null;
      this. audioBuffer = null;
      if(flag==='R'){
        this.loadAudioFile(require('../../../assets/mp3/red.mp3'))
      }else if(flag==='Y'){
        this.loadAudioFile(require('../../../assets/mp3/yellow.mp3'))
      }

    },
    stopAudio() {
      this.source.stop();
    },
    loadAudioFile(url) {
      let _that = this
      var xhr = new XMLHttpRequest(); //通过XHR下载音频文件
      xhr.open('GET', url, true);
      xhr.responseType = 'arraybuffer';
      xhr.onload =  function (e) { //下载完成
        _that.initSound(this.response);
      };
      xhr.send();
    },
    initSound(arrayBuffer) {
      let _this = this
      this.context.decodeAudioData(arrayBuffer, function (buffer) { //解码成功时的回调函数
        _this.audioBuffer = buffer;
        _this.playSound();
      }, function (e) { //解码出错时的回调函数
        console.log('Error decoding file', e);
      });
    },
    playSound() {
      this.source = this.context.createBufferSource();//获取音频数据
      this.source.buffer =  this.audioBuffer;
      this.source.loop = true;
      this.source.connect(this.context.destination);
      this.source.start(); //立即播放
    },

  },
};
</script>