如何从图像的缩略图路径获取imagepath？(How to get imagepath from thumbnail path of a image?)

 我试图基于拇指路径获取imagepath，我已经尝试了从android-getting-path-to-image-from-thumbnail的解决方案，但它基于gridview位置，我只检索特定图像。 我还从SO中找到了一个示例代码，代码是 
 
private String getImagePathFromThumbPath(String thumbPath)
    {
        String imgPath=null;

//      String[] projection = new String[] {MediaStore.Images.Thumbnails._ID, MediaStore.Images.Thumbnails.IMAGE_ID};
        String[] imagesDataPath={ MediaStore.Images.Media.DATA ,MediaStore.Images.Media._ID};
            //mResolver.query() requires android API 16
        Cursor thumbnails = mResolver.query(MediaStore.Images.Thumbnails.EXTERNAL_CONTENT_URI, imagesDataPath,MediaStore.Images.Thumbnails.DATA+"=?",new String[]{thumbPath}, null, null);

        String[] filePathColumn = {MediaStore.Images.Media.DATA};

        Cursor imageCursor = mResolver.query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, filePathColumn, MediaStore.Images.Media._ID + "=?", new String[] {thumbId}, null);

        if (imageCursor != null && imageCursor.moveToFirst()) {
            // Your file-path will be here
            imgPath= imageCursor.getString(imageCursor.getColumnIndex(filePathColumn[0]));
        }
        return imgPath;
    }
 
 上面的方法是根据我的需要进行位修改，并且在Toasting上没有返回任何内容，请告诉我如何使用缩略图路径检索图像路径？ 

I am trying to get imagepath based on thumbail path , i have already tried solution from android-getting-path-to-image-from-thumbnail, but it is based on gridview position, i am only retrieving specific images. Also i found one sample code from SO, the code is
 
private String getImagePathFromThumbPath(String thumbPath)
    {
        String imgPath=null;

//      String[] projection = new String[] {MediaStore.Images.Thumbnails._ID, MediaStore.Images.Thumbnails.IMAGE_ID};
        String[] imagesDataPath={ MediaStore.Images.Media.DATA ,MediaStore.Images.Media._ID};
            //mResolver.query() requires android API 16
        Cursor thumbnails = mResolver.query(MediaStore.Images.Thumbnails.EXTERNAL_CONTENT_URI, imagesDataPath,MediaStore.Images.Thumbnails.DATA+"=?",new String[]{thumbPath}, null, null);

        String[] filePathColumn = {MediaStore.Images.Media.DATA};

        Cursor imageCursor = mResolver.query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, filePathColumn, MediaStore.Images.Media._ID + "=?", new String[] {thumbId}, null);

        if (imageCursor != null && imageCursor.moveToFirst()) {
            // Your file-path will be here
            imgPath= imageCursor.getString(imageCursor.getColumnIndex(filePathColumn[0]));
        }
        return imgPath;
    }
 
The above method is bit modified to suit my needs and it returns nothing on Toasting, please tell how to retrieve imagepath using thumbnail path?

原文：https://stackoverflow.com/questions/15548922