unity發布安卓 截圖保存到本地

using System.IO;

//獲取系統時間並命名相片名
System.DateTime now = System.DateTime.Now;
string times = now.ToString ();
times = times.Trim ();
times = times.Replace ("/","-");
//文件名
string filename = "Screenshot"+times+".png";
//判斷是否為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();
//轉為字節數組
byte[] bytes = texture.EncodeToPNG();

string destination = "/sdcard/DCIM/ARphoto";
//判斷目錄是否存在，不存在則會創建目錄
if (!Directory.Exists (destination)) {
Directory.CreateDirectory (destination);
}
//文件路徑
string Path_save = destination+"/" + filename;
//存圖片
System.IO.File.WriteAllBytes(Path_save, bytes);
}