[Scummvm-tracker] [ScummVM :: Bugs] #12727: ANDROID: Allow Save location in SDcard (Write permission on SD)

[ScummVM :: Bugs]

#12727: ANDROID: Allow Save location in SDcard (Write permission on SD)
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Reporter:  LukasThyWalls                         |       Owner:  (none)
    Type:  feature request                       |      Status:  new
Priority:  normal                                |   Component:  Port:
                                                 |  Android
 Version:                                        |  Resolution:
Keywords:  Android, SDCard, Write permission,    |        Game:
  Savegames, Feature request                     |
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Comment (by antoniou79):

 I see. I don't get this error on my phone. I can set a path on the SD card
 (eg. within a path like eg. selecting something under the shortcut for my
 SD card
 /storage/5D9C-C55C/games/Blade Runner/saves).
 There is a warning popup prompt there; "Saved games sync doesn't work with
 non-default directories", and that is necessary, but it won't revert my
 custom path to default. It's just that later on, the save process will
 still fail after granting SAF permissions (the bug that I can reproduce)

 Yes, I have one or two applications that use SAF. The ones I've seen both
 urge the user to pick the root folder of the SD card but I am unsure if
 they allow picking something else (a child folder in the tree).

 ScummVM will popup a message recommending the user does this too (pick the
 root) but it does allow picking a folder in the tree. Problem is, now that
 I have checked again, both of these cases do have issues, at least with
 save games (tested in Blade Runner).

 ScummVM acquires the permission and keeps the token, but for some reason
 writing the save game still fails. On the first case (root folder level
 permission, an empty (awry) save game is created, and on the second one no
 file is created whatsoever. So, like I've said, this also needs more
 testing and fixing.

 ScummVM has more cases of writing to storage, than just save games. Like I
 wrote, this feature was primarily tested for the LAN server feature. The
 idea is whenever ScummVM tries to access something that it has no write
 permissions on, SAF will fire up and allow the user to grant the
 permission -- pretty much as SAF is intended to be used. Of course the
 user can always choose the root folder and be done with this, but that is
 typically considered not a good security practice. Probably not with
 ScummVM in mind, but still.
-- 
Ticket URL: <https://bugs.scummvm.org/ticket/12727#comment:7>
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