将图像保存到hololens应用程序中的照片文件夹中

Question

我正在尝试在Hololens应用程序中捕获照片。它似乎正在工作，但是将图像保存到我无法访问或查看的晦涩地方。我想将其保存到我的图片库Described here I think。或者我应该在哪里保存图像，以便可以在Hololens的照片中看到它。

filePath = C：/ Data / Users / JanikJoe / AppData / Local / Packages / HoloToolkit-Unity_pzq3xp76mxafg / LocalState \ CapturedImage10.02831_n.jpg

filePath2 = C：/Data/Users/DefaultAccount/AppData/Local/DevelopmentFiles/HoloToolkit-UnityVS.Debug_x86.janik/Data \ CapturedImage10.02831_n.jpg

using UnityEngine;
using UnityEngine.VR.WSA.WebCam;
using System.Linq;

public class PhotoCaptureFVTC : MonoBehaviour {

UnityEngine.VR.WSA.WebCam.PhotoCapture photoCaptureObject = null;
// Use this for initialization
void Start()
{
    Debug.Log("snap pic taken");
    PhotoCapture.CreateAsync(false, OnPhotoCaptureCreated);
}

public void OnPhotoCaptureCreated(PhotoCapture captureObject)
{
    photoCaptureObject = captureObject;

    //Resolution cameraResolution = PhotoCapture.SupportedResolutions.OrderByDescending((res) => res.width * res.height).First();
    Resolution cameraResolution = PhotoCapture.SupportedResolutions.OrderByDescending((res) => res.width * res.height).First();

    CameraParameters c = new CameraParameters();
    c.hologramOpacity = 0.0f;
    c.cameraResolutionWidth = cameraResolution.width;
    c.cameraResolutionHeight = cameraResolution.height;
    c.pixelFormat = CapturePixelFormat.BGRA32;

    captureObject.StartPhotoModeAsync(c, false, OnPhotoModeStarted);
}
void OnStoppedPhotoMode(PhotoCapture.PhotoCaptureResult result)
{
    photoCaptureObject.Dispose();
    photoCaptureObject = null;
}

private void OnPhotoModeStarted(PhotoCapture.PhotoCaptureResult result)
{
    if (result.success)
    {
        string filename = string.Format(@"CapturedImage{0}_n.jpg", Time.time);
        string filePath = System.IO.Path.Combine(Application.persistentDataPath, filename);
        string filePath2 = System.IO.Path.Combine(Application.dataPath, filename);

        photoCaptureObject.TakePhotoAsync(filePath, PhotoCaptureFileOutputFormat.JPG, OnCapturedPhotoToDisk);
        Debug.LogError("Saved That Image Somewhere" +"FileName: ="+ filename + " FilePath: = " + filePath + " FilePath2: = " + filePath2);
    }
    else
    {
        Debug.LogError("Unable to start photo mode!");
    }
}
void OnCapturedPhotoToDisk(PhotoCapture.PhotoCaptureResult result)
{
    if (result.success)
    {
        Debug.Log("Saved Photo to disk!");
        photoCaptureObject.StopPhotoModeAsync(OnStoppedPhotoMode);
    }
    else
    {
        Debug.Log("Failed to save Photo to disk");
    }
}


}

Answer 1

似乎无法直接保存在相机胶卷文件夹中，并且HoloLens上没有图片库。

这里有相同的问题：https://forums.hololens.com/discussion/1458/capturing-photo-in-unity-and-saving-to-disk

我尝试了解决方法，并且效果很好。只需将保存的图像移至相机胶卷文件夹即可。

#if !UNITY_EDITOR && UNITY_WINRT_10_0
        var cameraRollFolder = Windows.Storage.KnownFolders.CameraRoll.Path;            
        File.Move(_filePath, Path.Combine(cameraRollFolder, _filename));
#endif