I have a problem.
(我有个问题。)
I'm writing a program for my application, but I don't know why my files (pdf, xlsx ...) can't be opened when I download them in my application with DownloadManager.(我正在为我的应用程序编写程序，但是我不知道为什么当我使用DownloadManager将文件下载到我的应用程序中时，无法打开我的文件（pdf，xlsx ...）。)
Here's part of my code:(这是我的代码的一部分：)
https://i.stack.imgur.com/eiXvk.png
(https://i.stack.imgur.com/eiXvk.png)
I want the file to be read-only and the file to open automatically when downloaded.
(我希望该文件为只读文件，并在下载后自动打开。)
Please help!
(请帮忙！)
I am preparing for the competition and I need help.(我正在为比赛做准备，需要帮助。)
I find no other options on the Internet.(我在互联网上找不到其他选择。)
Thank you.
(谢谢。)
ask by Doxi67 translate from so
