微信小程序实现录音时的麦克风动画效果实例

 <view class='animation-talk'>
  <image src='../../image/receive{{receiveImg}}.png' wx:if="{{showTalk}}" mode='aspectFill'></image>
 </view>
 <view>
  <image src='../../image/voice{{voiceNum}}-btn.png' bindlongpress="longPress" bindtouchend="endTouch" ></image>
 </view>

 var playTalk //录音动画定时器
 Page({
  data:{
   showTalk: false, //显示录音动画
   receiveImg: 3, //按压播放语音动画
   voiceNum: 2, //按压录音时效果图
   config: app.globalData.apiUrl,//demo接口
  },
  //长按读语音
  longPress() {
   var that = this;
   that.setData({
    voiceNum: 1,
    showTalk: true
   });
   that.animationTalk();
   var url = that.data.config;
   wx.startRecord({
    success(res) {
     const tempFilePath = res.tempFilePath; //录音成功后的文件
     wx.saveFile({
      tempFilePath: tempFilePath, //保存文件到本地并生成临时路径
      success(res) {
       wx.uploadFile({   //上传语音文件到服务器
        url: url,
        filePath: res.savedFilePath,
        name: 'file',
        formData: {
         token: that.data.token,
         name: 'file'
        },
        success(res) {
         that.setData({
          voiceUrl: JSON.parse(res.data).file_url
         })
         that.receivePage() //校验语音正确率，此步骤未贴出
        }
       })
      }
     })
    }
   })
  },
  // 播放录音动画
  animationTalk() {
   var that = this;
   if (!that.data.showTalk) {
    that.setData({
     receiveImg: 1
    });
    clearTimeout(playTalk)
   } else {
    switch (that.data.receiveImg) {
     case 1:
      that.setData({
       receiveImg: 2
      })
      break
     case 2:
      that.setData({
       receiveImg: 3
      })
      break
     case 3:
      that.setData({
       receiveImg: 1
      })
      break
    }
    setTimeout(function () {
     that.animationTalk()
    }, 500)
   }
  },
  // 录音结束
  endTouch() {
   var that = this;
   wx.stopRecord();
   that.setData({
    voiceNum: 2,
    showTalk: false,
   })
  },
 })