NullPointerException

[asker517]

感谢大佬分享的这个很棒的裤子~使用过程我发现了一个小问题
如果媒体文件直接放在存储SD卡根目录，会产生一个NPE，AssetLoader中：

 assets.add(
                    AssetInfo(
                        id = id,
                        uriString = contentUri.toString(),
                        filepath = it.getString(indexFilepath),
                        filename = it.getString(indexFilename),
                        date = it.getLong(indexDate),
                        mediaType = mediaType,
                        mimeType = it.getString(indexMimeType),
                        size = it.getLong(indexSize),
                        duration = it.getLong(indexDuration),
                        directory = it.getString(indexDirectory), //NPE Here
                    )
                )

这里可以修复一下