iphone12真机测试调用相机返回不支持

faceRec(e) {
    wx.initFaceDetect({
      success: (res) => {
        console.log(res)
        this.startFace()
      },
      fail: (err) => {
        console.log(err)
      }
    })
  },
startFace() {
    const context = wx.createCameraContext()
    const listener = context.onCameraFrame((res) => {
      console.log('>>>>>')
    });
    if (wx.canIUse('CameraFrameListener.start')) {
      console.log('哈哈哈')
      listener.start({
        success: () => {
          console.log('success')
        },
        fail: (msg) => {
          console.log('fail>>>', msg)
        },
        complete: () => {
          console.log('complete')
        }
      })
    } else {
      console.log('嘤嘤嘤')
    }
  }