Unity使用陀螺仪检测屏幕方向

using UnityEngine;

/// <summary>检测设备方向</summary>
public class CheckDeviceOrientation : MonoBehaviour
{
    private void Start()
    {
        initGyro();
    }

    /// <summary>初始化陀螺仪</summary>
    private void initGyro()
    {
        Input.gyro.enabled = true;
        Input.gyro.updateInterval = 0.1f;
    }

    private bool isBackCamera = true;

    private void Update()
    {
         checkOrientation();
    }

    /// </summary>
    void checkOrientation()
    {
        if (Mathf.Abs(Input.gyro.gravity.z) <= 0.9f)
        {
            DeviceOrientation curOrientation = DeviceOrientation.Unknown;
            if (Mathf.Abs(Input.gyro.gravity.x) > Mathf.Abs(Input.gyro.gravity.y))
            {
                if (Input.gyro.gravity.x > 0f)
                {
                    curOrientation = DeviceOrientation.LandscapeRight;
                }
                else
                {
                    curOrientation = DeviceOrientation.LandscapeLeft;
                }
            }
            else if (Input.gyro.gravity.y > 0f)
            {
                curOrientation = !this.isBackCamera ? DeviceOrientation.Portrait : DeviceOrientation.PortraitUpsideDown;
            }
            else
            {
                curOrientation = !this.isBackCamera ? DeviceOrientation.PortraitUpsideDown : DeviceOrientation.Portrait;
            }
        }
    }

   
}