從Uri中獲取真是文件路徑的方法

這個方法是從網上找到的，感謝網友的無私奉獻！

 

    public static String getFilePathFromUri(Context context, Uri uri,
            String[] projection, String selection, String[] selectionArgs,
            String sortOrder) {
        Cursor cursor = context.getContentResolver().query(uri, projection,
                selection, selectionArgs, sortOrder);
        int index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        String path = cursor.getString(index);
        cursor.close();
        cursor = null;
        return path;
    }