使用外掛 GalleryScreenshot

	void OnEnable()
	{
		ScreenshotManager.ScreenshotFinishedSaving += ScreenshotSaved;	
		ScreenshotManager.ImageFinishedSaving += ImageSaved;
	}

	void OnDisable()
	{
		ScreenshotManager.ScreenshotFinishedSaving -= ScreenshotSaved;	
		ScreenshotManager.ImageFinishedSaving -= ImageSaved;
	}
 

	
	public void SaveImageClick()
	{
		Debug.Log ("baocun");

		StartCoroutine("SaveAssetImage");
	}

	public void OnTakeApictureBtnClick()
	{
		canvas.SetActive (false);

		StartCoroutine(ScreenshotManager.Save("MyScreenshot", "MyApp", true));
		audio.Play ();
	}




	IEnumerator SaveAssetImage ()
	{		
		string path;


		foreach (Texture2D tex in textures) {
			if (tex.name.Contains (savePhotoName)) {
				#if UNITY_ANDROID
				path = Application.persistentDataPath + "/../../../../DCIM/" + "Camera" + "/" + tex.name + num + ".png";
				#endif

				#if UNITY_IOS
				path = Application.persistentDataPath + "/"+ savePhotoName + num + ".jpg";
				#endif	
				num++;
				//tx.text = tex + "path:" +path  ;
				byte[] bytes = tex.EncodeToPNG();
				File.WriteAllBytes(path, bytes);
				yield return new WaitForEndOfFrame();
				StartCoroutine(ScreenshotManager.SaveExisting(path, true));
			}
		}
	}



	//拍照返回狀態
	void ScreenshotSaved()
	{
		canvas.SetActive (true);
		Debug.Log ("screenshot finished saving");
		saved = true;
	}

	void ImageSaved()
	{
		//Debug.Log (texture.name + " finished saving");
		saved2 = true;
	}