The current MTP kernel driver at /dev/mtp_usb is exclusive, meaning
only one process can have it open. In addition, each MTP session
with a desktop requires unique object IDs, which doesn't hold true
across users on the device.
To solve these two issues, when switching users we cycle the USB host
stack to disconnect both local and remote MTP connections, giving the
new user's media process a chance to claim /dev/mtp_usb, and causing
the desktop to initiate a new MTP session.
This change also allows BroadcastReceivers to registerReceiver()
allow retrieval of a current sticky broadcast. Adds a system property
to override maximum users. Removes MOUNTED broadcasts for secondary
users. Allows INTERACT_ACROSS_USERS to getCurrentUser().
Bug: 6925114
Change-Id: I02b4a1b535af95fb2142655887b6d15a8068d18a
Add a USER_INFO_CHANGED intent for lockscreen and quicksettings to use
to monitor changes to the user name or icon.
Bug: 7164040
Change-Id: Id6fb8b6d38ce04ccd02bbadcf0c10699783d6c03
So that we don't abuse the setUserIcon() for reading. So the new method won't try
to create the file, only return it if it exists.
Change-Id: I7a81d3f1b29d14d37e71f531744ce39f21d827ac
- New public APIs to find out when a user goes to the foreground,
background, and is first initializing.
- New activity manager callback to be involved in the user switch
process, allowing other services to let it know when it is safe
to stop freezing the screen.
- Wallpaper service now implements this to handle its user switch,
telling the activity manager when it is done. (Currently this is
only handling the old wallpaper going away, we need a little more
work to correctly wait for the new wallpaper to get added.)
- Lock screen now implements the callback to do its user switch. It
also now locks itself when this happens, instead of relying on
some other entity making sure it is locked.
- Pre-boot broadcasts now go to all users.
- WallpaperManager now has an API to find out if a named wallpaper is
in use by any users.
Change-Id: I27877aef1d82126c0a1428c3d1861619ee5f8653
By default only 1 user is allowed. Some devices permit more than 1.
Set the real user limit in a device overlay for config.xml
Change-Id: I2e0bffa13393b954fcd20e55b92f20de980c58c0
Now we default to the current user instead of user 0 for most commands
(except where we can do the command for all users).
Many more commands take a user argument: force-stop, kill, profile,
dumpheap.
Improved help text.
Change-Id: I719a13b4d31b668f57ca21e51d7043ac3e0d4e1b
Environment.getUserSystemDirectory(int userId)
Use it all relevant places that was hardcoding it.
Also, wipe out the user's system directory when user is removed, otherwise old state
might be transferred to a new user.
Change-Id: I788ce9c4cf9624229e65efa7047bc0c019ccef0a
You can now use ALL and CURRENT when sending broadcasts, to specify
where the broadcast goes.
Sticky broadcasts are now correctly separated per user, and registered
receivers are filtered based on the requested target user.
New Context APIs for more kinds of sending broadcasts as users.
Updating a bunch of system code that sends broadcasts to explicitly
specify which user the broadcast goes to.
Made a single version of the code for interpreting the requested
target user ID that all entries to activity manager (start activity,
send broadcast, start service) use.
Change-Id: Ie29f02dd5242ef8c8fa56c54593a315cd2574e1c
The activity manager now keeps track of which users are running.
Initially, only user 0 is running.
When you switch to another user, that user is started so it is
running. It is only at this point that BOOT_COMPLETED is sent
for that user and it is allowed to execute anything.
You can stop any user except user 0, which brings it back to the
same state as when you first boot the device. This is also used
to be able to more cleaning delete a user, by first stopping it
before removing its data.
There is a new broadcast ACTION_USER_STOPPED sent when a user is
stopped; system services need to handle this like they currently
handle ACTION_PACKAGE_RESTARTED when individual packages are
restarted.
Change-Id: I89adbd7cbaf4a0bb72ea201385f93477f40a4119
UserManagerService is now closely tied to PackageManagerService,
sharing the same locks. There is no longer direct access of
Installer by UserManagerService, instead the package manager is
back to solely owning it.
Creating a new user now correctly only installs system apps for
that user.
Fixed some misc bugs, where we were getting nulls when
querying content providers and instrumentation in uninstalled
users, incorrect locking, etc.
Change-Id: Ife69b6e373d0cf7c5cfc03fc588e36b43ad5d8b0
This add a new per-user state for an app, indicating whether
it is installed for that user.
All system apps are always installed for all users (we still
use disable to "uninstall" them).
Now when you call into the package manager to install an app,
it will only install the app for that user unless you supply
a flag saying to install for all users. Only being installed
for the user is just the normal install state, but all other
users have marked in their state for that app that it is not
installed.
When you call the package manager APIs for information about
apps, uninstalled apps are treated as really being not visible
(somewhat more-so than disabled apps), unless you use the
GET_UNINSTALLED_PACKAGES flag.
If another user calls to install an app that is already installed,
just not for them, then the normal install process takes place
but in addition that user's installed state is toggled on.
The package manager will not send PACKAGE_ADDED, PACKAGE_REMOVED,
PACKAGE_REPLACED etc broadcasts to users who don't have a package
installed or not being involved in a change in the install state.
There are a few things that are not quite right with this -- for
example if you go through a full install (with a new apk) of an
app for one user who doesn't have it already installed, you will
still get the PACKAGED_REPLACED messages even though this is
technically the first install for your user. I'm not sure how
much of an issue this is.
When you call the existing API to uninstall an app, this toggles
the installed state of the app for that user to be off. Only if
that is the last user user that has the app uinstalled will it
actually be removed from the device. Again there is a new flag
you can pass in to force the app to be uninstalled for all users.
Also fixed issues with cleaning external storage of apps, which
was not dealing with multiple users. We now keep track of cleaning
each user for each package.
Change-Id: I00e66452b149defc08c5e0183fa673f532465ed5
So each user can have their own set of intent resolution preferences.
ResolverActivity now launches the activity on the correct user, and
persists the preference for the correct user.
Bug: 6961905
Change-Id: I6d3a8a9af89bc649277d4fc8d0f367ee123f8392
Use AtomicFile for usermanager files.
Added a MANAGE_USERS permission that apps (signature permission) can use
to create/query/modify/remove users.
Change-Id: I5cf232232d0539e7508df8ec9b216e29c2351cd9
Moved a bunch of methods from PackageManager to UserManager.
Fix launching of activities from recents to correct user.
Guest creation APIs
Change-Id: I0733405e6eb2829675665e225c759d6baa2b708f
