人脸识别-刷脸登录

首先创建camera.xml

<camera device-position="{
  
  {show}}" flash="off" binderror="error" style="width: 100%; height: 400px;"></camera>
<button type="primary" bindtap="takePhoto" class='btn'>刷脸登录</button>
 <view class='weui-cell__ft switch'>
            <switch checked bindchange='switch1Change'></switch>
  </view>

给switch1Change绑定事件,设置前置后置

switch1Change: function (e) {
    if (e.detail.value) {
      this.setData({ show: 'front' })
    } else {
      this.setData({ show: 'back' })
    }

刷脸登录按钮绑定

takePhoto() {
    const ctx = wx.createCameraContext()
    ctx.takePhoto({
      quality: 'high',
      success: (res) => {
        this.setData({