HarmonyOS 鸿蒙Next如何判断设备水平翻转（屏幕朝下）

尝试通过方向传感器和旋转矢量传感器来判断 但是数值跳动的很乱 不知道该如何界定屏幕朝下的相对值 有大佬开发过屏幕翻转的需求么 麻烦请教一下

try {
  sensor.on(sensor.SensorId.ORIENTATION, (data: sensor.OrientationResponse) => {
    MpContext.getInstance().secureGetString(‘isFlip’+MpContext.getInstance().sessionGetString(‘userSeq’)).then((res:string) =>{
      console.log(‘data.alpha’,data.alpha)
      if(MpContext.getInstance().sessionGetString(‘isLogin’) == ‘true’ && data.alpha >= 300 && res == ‘1’) {
        // LogoutMethod.getInstance().logout(‘0’)
        try {
          sensor.on(sensor.SensorId.ROTATION_VECTOR, (data: sensor.RotationVectorResponse) => {
            console.info('Succeeded in invoking on. X-coordinate component: ’ + data.x);
            console.info('Succeeded in invoking on. Y-coordinate component: ’ + data.y);
            console.info('Succeeded in invoking on. Z-coordinate component: ’ + data.z);
            console.info('Succeeded in invoking on. Scalar quantity: ’ + data.w);
          }, { interval: 700000000 });
        } catch (error) {
          let e: BusinessError = error as BusinessError;
          console.error(Failed to invoke on. Code: ${e.code}, message: ${e.message});
        }
      }else {
        sensor.off(sensor.SensorId.ROTATION_VECTOR);
      }
    })
  }, { interval: 700000000 });
} catch (error) {
  let e: BusinessError = error as BusinessError;
  console.error(Failed to invoke on. Code: ${e.code}, message: ${e.message});
}