如何透過 ContentResolver 取得真實檔名 === ```java= Uri contentUri = data.getdata(); DocumentFile documentFile = DocumentFile.fromSingleUri(this, contentUri); String fileName = documentFile.getName(); ``` ## Ref. [ContentResolver - how to get file name from Uri](https://stackoverflow.com/a/57901851/11827511) ###### tags: `File 相關`