如何将媒体存储目录导出为ACTION_VIEW意图？

Question

我有一个附加到按钮的功能，如下所示：

public void viewSnappies(View z) {
        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(Util.getOutputMediaFile().mediaStorageDir().getPath()));
        startActivity(intent);
    }

在我的Util课程中，我有：

public final class Util {
    /**
     * Create a File for saving an image
     */
    // http://developer.android.com/guide/topics/media/camera.html#saving-media
    public static File getOutputMediaFile(Context context) {
        File mediaStorageDir = null;
        // To be safe, you should check that the SDCard is mounted
        // using Environment.getExternalStorageState() before doing this.
        String state = Environment.getExternalStorageState();
        if (Environment.MEDIA_MOUNTED.equals(state)) {
            mediaStorageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "snappiesticker");
        } else {
            ContextWrapper cw = new ContextWrapper(context);
            mediaStorageDir = cw.getDir("imageDir", Context.MODE_PRIVATE);
        }


        // This location works best if you want the created images to be shared
        // between applications and persist after your app has been uninstalled.

        // Create the storage directory if it does not exist
        if (!mediaStorageDir.exists()) {
            if (!mediaStorageDir.mkdirs()) return null;
        }

        // Create a media file name
        String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
        File mediaFile;

        mediaFile = new File(mediaStorageDir.getPath() + File.separator + "IMG_" + timeStamp + ".jpg");

        return mediaFile;
    }
}

现在按钮不能正常工作（新Intent行中的错误）。它没有解决，因为我把错误的东西放入Uri.parse（）。我希望它解析并使用在Util类中给出的getOutputMediaFile方法中定义的mediaStorageDir。

如何正确传递此变量？