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richsmith / sexytopo

The SexyTopo cave surveying app for Android
GNU General Public License v3.0
31 stars 14 forks source link

Major limitation; unable to import or recover backups on Android 11 #180

Closed tarquinwj closed 1 year ago

tarquinwj commented 2 years ago

Android 11 does not allow apps to access the files created by other apps, even if the app has permission to access media and files. If you try migrating from one phone to another, you cannot access the surveys that you copied, so all your old surveys are unavailable. It is also impossible to use menu - File - Import on those same devices.

We came up with several suggestions for how to fix this:

  1. Access to all files permission. This stopped working in Android 11's most recent update.
  2. Register with google as a trusted app that is allowed to access all files. unlikely to get permission for this.
  3. Ask the system for access to a folder tree, which fires up the Android folder chooser. The user could then choose the folder.
  4. Fake it. Rename the files to .jpg so they are treated as media, so SexyTopo can access them. Not a nice solution.

Android 11 SexyTopo 1.6.1

richsmith commented 2 years ago

The other option is to let the user manage the file opening each time, but that has its own issues and would require a significant rewrite. In the short term I'm going to try to get option 3 working.

richsmith commented 1 year ago

This has been fixed in the latest release - user has to choose files / directory themselves.

tarquinwj commented 1 year ago

\o/

Thank you!