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微信小程序录音功能实现

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首先我们要做的就是长按录音功能,顺带做了个播放录音带进度条功能,效果图及代码如下:首先我们要做的效果图就是上图这样,下面就贴代码吧。wxml:  <view catch:longpress=”handleRecordStart” catch:touchmove=”handleTouchMove” catch:touchend=”handleRecordStop” class=”img-content” hoverClass=”none” data-key=”cover” data-size=”1″>    <image class=”icon-img” mode=”aspectFill” src=”###”></image>  </view>录音播放<!– 录音 –><view class=”audio rel” wx:if=”{{audiolist.length>0}}”>  <view class=”play abs” catchtap=’playAudio’ data-src=”{{audiolist}}”>    <!– <image class=”abs play-img” mode=”aspectFill” src=”https://retail.xiaochengxucms.com/images/12/2018/10/T8A1maB3boAB3A8Sb8yTYBs1b0BmaA.png”></image> –>    <view wx:if=”{{isPlayAudio}}”>        <image class=”abs play-img” mode=”aspectFill”  src=’/longbing_card/resource/images/stop.png’ />      </view>      <view wx:else>        <image class=”abs play-img” mode=”aspectFill”  src=’/longbing_card/resource/images/play.png’ />      </view>  </view>  <view class=”name abs”>{{userName}}</view>  <view class=”flex-time”>    <view style=”font-size: 20rpx;color:#ccc”>{{showTime1}}</view>    <view class=’slider’>      <slider bindchange=’sliderChange’ activeColor=’red’ block-size=”12″ value='{{audioTime}}’ />    </view>    <view style=”font-size: 20rpx;color:#ccc”>{{showTime2}}</view>  </view></view>录音播放wxss:.play-img {width: 62rpx !important;height: 62rpx !important;top: 10rpx;left: 10rpx;}.audio {width: 100%;height: 112rpx;background: rgba(230, 67, 64, 0.49);border-radius: 8rpx;margin: 10rpx 0;}.play {width: 63rpx;height: 63rpx;top: 20rpx;left: 40rpx;}.name {font-size: 24rpx;font-family: PingFang SC;font-weight: 500;line-height: 42rpx;color: rgba(255, 255, 255, 1);top: 14rpx;left: 160rpx;}.flex-time {width: 70%;position: absolute;display: flex;align-items: center;justify-content: flex-start;left: 25%;bottom: -10rpx;}.slider{width: 60%;height: 100%;}.slider slider{width: 88%;margin-left: 8%;margin-right: 4%;}录音js:// 录音handleRecordStart: function(e) {this.setData({is_clock: true, //长按时应设置为true,为可发送状态startPoint: e.touches[0], //记录触摸点的坐标信息})//设置录音参数const options = {duration: 600000,sampleRate: 16000,numberOfChannels: 1,encodeBitRate: 48000,format: ‘mp3’}//开始录音recorderManager.start(options);wx.showLoading({icon: “none”,title: ‘正在录音’,})},handleRecordStop: function(e) {console.log(e)wx.hideLoading()recorderManager.stop() //结束录音//此时先判断是否需要发送录音if (this.data.is_clock == true) {var that = this//对停止录音进行监控recorderManager.onStop((res) => {//对录音时长进行判断,少于2s的不进行发送,并做出提示console.log(res)console.log(_xx_util2.default.getUrl(“upload”, “longbing_card”))if (res.duration < 2000) {wx.showToast({title: ‘录音时间太短,请长按录音’,icon: ‘none’,duration: 1000})} else {//进行语音发送const {tempFilePath} = res;wx.showLoading({title: ‘语音检索中’,})//上传录制的音频wx.uploadFile({url: _xx_util2.default.getUrl(“upload”, “longbing_card”),filePath: tempFilePath,name: ‘upfile’,success: function(event) {console.log(event)var datas = JSON.parse(event.data);console.log(datas)if (datas.errno == 0) {wx.hideLoading()if (datas.data) {console.log(that.data.audiolist)that.setData({audiolist: datas.data.path,audioPath: datas.data.img,time: res.duration})} else {wx.showToast({title: ‘上传格式错误’,icon: ‘none’,duration: 2000})}} else {wx.showToast({title: datas.msg,icon: ‘none’,duration: 2000})}}})}})}},handleTouchMove: function(e) {//计算距离,当滑动的垂直距离大于25时,则取消发送语音if (Math.abs(e.touches[e.touches.length – 1].clientY – this.data.startPoint.clientY) > 25) {this.setData({is_clock: false //设置为不发送语音})}},录音播放js:var innerAudioContext = wx.createInnerAudioContext()//很重要,写在page外面,作为全局变量data: {isPlayAudio: false,audioSeek: 0,audioDuration: 0,showTime1: ‘00:00’,showTime2: ‘00:00’,audioTime: 0},onshow: function() {   console.log(“onshow”)   this.Initialization();   this.loadaudio();},//初始化播放器,获取durationInitialization() {  console.log(“初始化播放器”)  var t = this;  if (this.properties.audiolist.length != 0) {    //设置src    innerAudioContext.src = this.properties.audiolist;    console.log(innerAudioContext.src)    //运行一次    innerAudioContext.play();    innerAudioContext.pause();    innerAudioContext.onCanplay(() => {      //初始化duration      innerAudioContext.duration      setTimeout(function() {        //延时获取音频真正的duration        var duration = innerAudioContext.duration;        var min = parseInt(duration / 60);        var sec = parseInt(duration % 60);        if (min.toString().length == 1) {          min = `0${min}`;        }        if (sec.toString().length == 1) {          sec = `0${sec}`;        }        t.setData({          audioDuration: innerAudioContext.duration,          showTime2: `${min}:${sec}`        });      }, 1000)    })  }},//拖动进度条事件sliderChange(e) {  var that = this;  innerAudioContext.src = this.properties.audiolist;  //获取进度条百分比  var value = e.detail.value;  this.setData({    audioTime: value  });  var duration = this.data.audioDuration;  //根据进度条百分比及歌曲总时间,计算拖动位置的时间  value = parseInt(value * duration / 100);  //更改状态  this.setData({    audioSeek: value,    isPlayAudio: true  });  //调用seek方法跳转歌曲时间  innerAudioContext.seek(value);  //播放歌曲  innerAudioContext.play();},//播放、暂停按钮playAudio() {  console.log(“播放”)  //获取播放状态和当前播放时间  var isPlayAudio = this.data.isPlayAudio;  var seek = this.data.audioSeek;  innerAudioContext.pause();  //更改播放状态  this.setData({    isPlayAudio: !isPlayAudio  })  if (isPlayAudio) {    //如果在播放则记录播放的时间seek,暂停    this.setData({      audioSeek: innerAudioContext.currentTime    });  } else {    //如果在暂停,获取播放时间并继续播放    innerAudioContext.src = this.properties.audiolist;    console.log(innerAudioContext.src)    if (innerAudioContext.duration != 0) {      this.setData({        audioDuration: innerAudioContext.duration      });    }    //跳转到指定时间播放    innerAudioContext.seek(seek);    innerAudioContext.play();  }},loadaudio() {  var that = this;  //设置一个计步器  this.data.durationIntval = setInterval(function() {    //当歌曲在播放时执行    if (that.data.isPlayAudio == true) {      //获取歌曲的播放时间,进度百分比      var seek = that.data.audioSeek;      var duration = innerAudioContext.duration;      var time = that.data.audioTime;      console.log(seek, duration, time)      time = parseInt(100 * seek / duration);      console.log(time)      //当歌曲在播放时,每隔一秒歌曲播放时间+1,并计算分钟数与秒数      var min = parseInt((seek) / 60);      var sec = parseInt((seek) % 60);      //填充字符串,使3:1这种呈现出 03:01 的样式      if (min.toString().length == 1) {        min = `0${min}`;      }      if (sec.toString().length == 1) {        sec = `0${sec}`;      }      var min1 = parseInt(duration / 60);      var sec1 = parseInt(duration % 60);      if (min1.toString().length == 1) {        min1 = `0${min1}`;      }      if (sec1.toString().length == 1) {        sec1 = `0${sec1}`;      }      //当进度条完成,停止播放,并重设播放时间和进度条      if (time >= 100) {        innerAudioContext.stop();        that.setData({          audioSeek: 0,          audioTime: 0,          audioDuration: duration,          isPlayAudio: false,          showTime1: `00:00`        });        return false;      }      console.log(`${min}:${sec}`, `${min1}:${sec1}`)      //正常播放,更改进度信息,更改播放时间信息      that.setData({        audioSeek: seek + 1,        audioTime: time,        audioDuration: duration,        showTime1: `${min}:${sec}`,        showTime2: `${min1}:${sec1}`      });    }  }, 1000);},onUnload: function() {  //卸载页面,清除计步器  clearInterval(this.data.durationIntval);}

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