Unity 截图并将图片保存到手机指定文件夹

Unity版本：5.6

在使用下面代码前，你一定要设置如下，否则就不起作用了

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.EventSystems;
using System.IO;
 
public class jie_tu1 : MonoBehaviour {
 
    public Text log;
 
    public void jietu()
    {
        //获取系统时间并命名相片名  
        System.DateTime now = System.DateTime.Now;
        string times = now.ToString();
        times = times.Trim();
        times = times.Replace("/", "-");
        string filename = "Screenshot" + times + ".png";
 
        //判断是否为Android平台  
        if (Application.platform == RuntimePlatform.Android)
        {
            //截取屏幕  
            Texture2D texture = new Texture2D(Screen.width, Screen.height, TextureFormat.RGB24, false);
            texture.ReadPixels(new Rect(0, 0, Screen.width, Screen.height), 0, 0);
            texture.Apply();
 
            //转为字节数组  
            byte[] bytes = texture.EncodeToPNG();
 
            string destination = "/sdcard/DCIM/截图";
 
            //判断目录是否存在，不存在则会创建目录  
            if (!Directory.Exists(destination))
            {
                Directory.CreateDirectory(destination);
            }
 
            string Path_save = destination + "/" + filename;//filename 是图片名
 
            //保存图片  
            System.IO.File.WriteAllBytes(Path_save, bytes);
            log.text = destination; //输出一下路径
        }
    }
}