[Android] All file permissions

In Android 11, file access is stronger than in previous OS versions. You must pass Google's review to use these features. Therefore, Polaris Office is an app approved by Google, so no one but you can delete the document.

We will guide you on why you should use the above function.

1. If you do not use the 'Allow access to all files' permission and use the 'Storage access framework' provided by Google, all documents scattered in the device storage may not be displayed.
2. Polaris Office has a built-in file manager, so you need permission to copy, delete, and move documents smoothly.
3. To open documents based on folder browsing in Polaris Office.

We ask for your understanding that this is an essential function to provide better service to our customers.