微信小程序长按录音+录制视频

<view class="bigCircle" bindtouchstart="start" bindtouchend="stop">
  <view class="smallCircle {{startVedio?'onVedio':''}}">
    <text>{{startVedio?'正在录音':'长按录音'}}</text>
  </view>
</view>
<view>
  <view class="vedio-player">
    <view class="vedio-file" bindtap="play">
      <view class="item-list">
        <view wx:for="{{20}}" wx:for-item="item" class="item {{vedioProcess>item*5?'active':''}}" wx:key="index"></view>
      </view>
      <view class="time">{{vedioTime}}</view>
    </view>

  </view>
</view>


<view class="page-body" style="margin-top: 100rpx;">
  <view class="page-body-wrapper">
    <camera device-position="back" flash="off" binderror="error" style="width: 100%; height: 300px;"></camera>
    <view class="btn-area">
      <button type="primary" bindtap="startRecord">开始录像</button>
    </view>
    <view class="btn-area">
      <button type="primary" bindtap="stopRecord">结束录像</button>
    </view>
    <view class="preview-tips">预览</view>
    <video wx:if="{{videoSrc}}" class="video" src="{{videoSrc}}"></video>
  </view>
</view>

.bigCircle{height:140rpx;width:140rpx;border-radius:100%;background-color:#3370FF2E;display:flex;align-items:center;justify-content:center;color:#fff}
.smallCircle{width:100rpx;height:100rpx;background-color:#3370ff;border-radius:100%;display:flex;align-items:center;justify-content:center; font-size: 20rpx;}
.onVedio{background-color:#04d7b9!important}
.vedio-player{margin-top:20px;display:flex;justify-content:center;align-items:center}
.vedio-file{width:250px;height:44px;background:#f5f5f5;border-radius:34.5px;display:flex;align-items:center;padding:0 10px;box-sizing:border-box;justify-content:space-evenly}
.vedio-file image{height:33px;width:33px}
.item-list{width:150px;height:15px;display:flex;align-items:center}
.time{color:#0d296e;font-size:12px}
.item{height:12px;width:2px;background-color:#3370FF33;margin-left:5px}
.active{background-color:#3370ff}
.item:nth-child(6n-1),.item:nth-child(6n-5){height:4px}
.item:nth-child(6n-2),.item:nth-child(6n-4){height:8px}
.item:nth-child(6n-3){height:14px}
.del-vedio{margin-left:15px}
.del-vedio image{height:25px;width:25px}

//获取应用实例
const app = getApp()
const recorderManager = wx.getRecorderManager()
const innerAudioContext = wx.createInnerAudioContext()
var tempFilePath;
Page({
  data: {
    startVedio: false,
    vedioTime: '0:00',
  },
  //开始录音的时候
  start: function () {
    const options = {
      duration: 20000, //指定录音的时长，单位 ms
      sampleRate: 16000, //采样率
      numberOfChannels: 1, //录音通道数
      encodeBitRate: 96000, //编码码率
      format: 'mp3', //音频格式，有效值 aac/mp3
      frameSize: 50, //指定帧大小，单位 KB
    }
    //开始录音
    recorderManager.start(options);
    this.setData({
      startVedio: true
    })
    recorderManager.onStart((res) => {
      this.setData({
        startVedio: false
      })
      console.log('recorder start')
    });
    //错误回调
    recorderManager.onError((res) => {
      console.log(res);
    })
  },
  //停止录音
  stop: function () {
    recorderManager.stop();
    recorderManager.onStop((res) => {
      this.tempFilePath = res.tempFilePath;
      const ss = Math.floor(res.duration / 1000 % 60)
      const mm = Math.floor(res.duration / 1000 / 60)
      this.setData({
        vedioTime: `${mm}:${ss>10?ss:'0'+ss}`
      })
      console.log('停止录音', res.tempFilePath)
      const {
        tempFilePath
      } = res
    })
  },
  //播放声音
  play: function () {

    innerAudioContext.autoplay = true
    innerAudioContext.src = this.tempFilePath,
      innerAudioContext.onPlay(() => {
        console.log('开始播放')
      })
    innerAudioContext.onError((res) => {
      console.log(res.errMsg)
      console.log(res.errCode)
    })

  },
  onLoad() {
    this.ctx = wx.createCameraContext()
  },
  startRecord() {
    this.ctx.startRecord({
      success: (res) => {
        console.log('startRecord')
      }
    })
  },
  stopRecord() {
    this.ctx.stopRecord({
      success: (res) => {
        console.log(res.tempVideoPath)
        this.setData({
          src: res.tempThumbPath,
          videoSrc: res.tempVideoPath
        })
      }
    })
  },
  error(e) {
    console.log(e.detail)
  }
})