<view class="page-body">
  <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="takePhoto">拍照</button>
    </view>
    <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>
    <image wx:if="{{src}}" mode="widthFix" src="{{src}}"></image>
    <video wx:if="{{videoSrc}}" class="video" src="{{videoSrc}}"></video>
  </view>
</view>

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

/* pages/one/one.wxss */
.preview-tips {
  margin: 20rpx 0;  
}
 
.video {
  margin: 50px auto;
  width: 100%;
  height: 300px;
}

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