When a dialog has been minimized to recents the windows behind it
won't be visible. Yet we were requiring them to be visible in order to
be included in the ones being restored. This left the background
windows invisible on resume and showed home behind floating dialogs
instead of the activity that launched the dialogs.
Fixes bug 11067724.
Change-Id: Icadd7ec8fe7c73b52982b6ff5b5d98b8fb8476b0
Trying to span all potential stacks looking for apps was too complex
and error-prone. Extending the jb-mr2 method across multiple stacks.
Fixes bug 11080696.
Change-Id: I6391ceae4ad6a0955a409c3fb27472219fd5bf6b
If the last screenshot activity is resumed, we need to always capture
a new screenshot, because it can change at any time.
On the other hand, never create a thumbnail for tasks that have set
themselves to not show on the recent tasks lists, since we have no
use for them.
Change-Id: I38523afc966c125da93339e0100da950119cdf99
Remember which stack was in front when the user changes. Restore that
stack when the user changes back. Remove user state when user is
deleted.
Fixes bug 11068986.
Change-Id: I18dfbc35a0c2e21e7a4024227cbfc5ba1208b3a3
Localize the point where it is determined whether a task should sit on
top of home or return to the task below it.
Fixes bug 11080913.
Change-Id: I79d1ea9722c867d6b550ddfcd1db35517a79cd90
Bug: 10918599
Reduce the number of recent tasks to 10 on lowram devices
Use RGB_565 on low ram devices for thumbnails instead of ARGB_8888
Combined this saves ~9MB across system_process and systemui
Change-Id: Ieddcb512c7341a90097bc7cbc72d7355a775b416
- Call in all circumstances but only set launchHomeTaskNext for
focused stack. Previous version didn't call handleAppDiedLocked for
non-focused stack.
- Rearrange logic to run down the top task and make sure that all
remaining activities belong to the dying app. Previous version just
looked at the top non-finishing activity and based its behavior on
that.
Fixes bug 11029560.
Change-Id: Ic3a7c873c4c975577d6b390a8955ff41729bdfde
Fixes jank exposed in 10881705. Specifically background activity
animating up along with translucent activity. Repro steps on manta:
1. From home start Settings.
2. Press home.
3. From home start Downloads (translucent activity that takes 85% of
screen).
4. Observe that as Downloads zooms up the 15% boundary that should be
dimly transparent are showing Settings.
The cause was that there is a finishing activity in the Downloads task
that was used to launch the DownloadsActivity. The existence of that
activity kept the logic from recognizing that the home activity was
behind the DownloadsActivity, not the Settings activity.
This fix descends through all of the activities in a task sitting on
home and makes sure that they only keep home from showing if such
activities are not finishing and visible.
Change-Id: I607afce6b0000b4db634f2ce40a6c37fcee369d7
The home activity was being returned to when any activity in a task
that was launched from home crashed. If there were still activities
left in the task then the crash should have brought up those
activities next, not home.
This may be a partial fix for crashes where the back stack was showing
up under launcher icons. Bug 10858941.
Change-Id: I840a25bd8395bfce46f4e21b112d78b12884706d
If an activity is visible behind the keyguard when it is launched
by another activity then there would be no call to dismissKeyguard.
Because the other activity is pausing the call to dismissKeyguard
is skipped in startActivityLocked(). And because it is already
visible the call to ActivityRecord.windowsVisible() is never made and
the call to reportActivityVisibleLocked() which calls
dismissKeyguard() is also never made.
This change recognizes when an activity is resumed and visible and
calls dismissKeyguard() in that case.
Fixes bug 10732489.
Change-Id: I3de1350a55231aaa14dadc8709fd0fcf4960742c
Back out changes from CLs ag/363992 and ag/363859. These introduced
the bugs found in bug 10917435 which is now fixed. Note that backing
out these changes reintroduces bug 10732489.
Change-Id: Ic5105dd4cfc8bf79c6f06188283d1ee3680c370c
The previous fix for keeping activities from running on startup,
ag/363992, was keeping the home task from launching when the
keyguard should have allowed it.
This fix permits the home activity to launch in such situations.
Fixes bug 10916877.
Change-Id: I429f0d5a13e06a247b9b6b7241f9a3514044c371
Following boot the initial activity was automatically resumed even if
a lockscreen is obscuring it. Refer to CL 363859 for why this breaks
things.
This fix pauses all activities the first time a lockscreen appears.
Completes the fix for bug 10732489.
Change-Id: I6fcac14b574c495aa0e16d798cddc1263c6b4c25
When transitioning from activity-over-launcher to task-over-launcher
ensureActivitiesVisibleLocked() was too aggressive in showing the
launcher. If there were any non-fullscreen activities in a task that
sits over the launcher then the launcher would be shown.
This fix adds a test to make sure the launcher will only be shown if
the bottommost activity in such a task is non-fullscreen.
Fixes bug 10840919.
Change-Id: I5dcd63be3fa2865ae38cbb921332937dfa4b5d47
...be uncached and too large
When the device is in a low RAM state, when we go to pull a cached
process out to use for some background operation, we can now kill
the current process if we consider its size to be too large.
Note that the current implementation for killing processes is to
just use the same killUnneededProcessLocked() method that we already
have for other things like too many cached processes. This is a
little wrong here, though, because in this case we are at the
point where the caller is actually looking for a process to use.
This current code is not actually removing or cleaning up the
process, so we still need to return the now killed ProcessRecord
and let things fall out from there, which typically means the caller
trying to make an IPC on it and failing and falling into its "oh
no the process died unexpectedly" path. All code using this
*should* be able to handle this correctly, anyway, since processes
really can be killed at any time.
At some point we may to make this implementation cleaner, where it
actually tears down the process right in the call and returns a
null ProcessRecord. That is very dangerous however (we'd need to
go through all paths into this to make sure they are going to be
okay with process state changing on them like that), and I'm not
sure it is really worthwhile. This intention is that killing
processes like this is unusual, due to processes being too large,
and anyway as I wrote all of our incoming code paths must already
be able to handle the process being killed at this point and one
could argue this is just another way to excercise those code paths.
Really, the main negative to this is that we will often have spam
in the log with exceptions about processes dying unexpectedly.
If that is the only issue, we could just add some conditions to
quiet that up at in this case.
We don't want to compute the size of the process each time we try
to evaluate it here (it takes 10s or ms to do so), so there is now
a new field associated with the process to give us the last pss
size we computed for it while it was in the cached state.
To be able to have better cached pss data when we now need it, the
timing for computing process pss has been tuned to use a much
shorter delay for the situations when the process has first switch
into a new state. This may result in us having a fair amount more
pss data overall, which is good, as long as it doesn't cause us to
be computing pss excessively and burning cpu.
Procstats now also has new state to keep track of the number of
times each process has been killed by this new system, along with
the min, avg, max pss of all the times it has happened. This has
slightly changed the checkin format to include this additional data
at the end of pkgkills/prockills lines.
Other changes here:
- Fixed a problem where GPU RAM was not being seen when dumping
the full RAM details of a process. This was because in that
case the system would ask the process to compute its own MemInfo,
which it returned, but the process doesn't have permission to
access the files containing the GPU RAM data. So now the system
always computes the MemInfo and hands it to the app.
- Improved broadcast delays to not apply the delay if the next receiver
of the broadcast is going to run in the same process as the last
one. A situation I was seeing was an application that had two
receivers, one of which started a service; we are better off letting
the second receiver run while the service is running.
- Changed the alarm manager's TIME_TICK broadcast to be a foreground
broadcast. This really should have been anyway (it is supposed to
go out even minute, on the minute, very accurately, for UI elements
to update), and is even more important now that we are doing more
things to delay background broadcasts.
- Reworked how we maintain the LRU process list. It is now divided
into the two parts, the top always containing the processes holding
activities. This better matches the semantics we want (always try
to keep those around modulated by the LRU order we interleave with
other cached processes), and we now know whether a process is being
moved on the LRU list because of an activity operation so we can
only change the order of these activity processes when user operations
happen. Further, this just makes that common code path a lot simpler
and gets rid of all the old complexity that doesn't make sense any
more.
Change-Id: I04933ec3931b96db70b2b6ac109c071698e124eb
The idea of multiple processes serving as home was unfeasible.
- Revert "Allow for more than one home app." commit
e428a7f662.
- Assign ActivityManagerService.mHomeProcess to the process of the
root activity of the home task.
Addresses bug 10342471.
Change-Id: Ifb494626107d24de1306e320a18206d5b176a7c0
The variable ActivityRecord.mLaunchHomeTaskNext was used to indicate
that the home task should be launched when the activity completed.
This only mattered when it was at the end of a task. As the activity
launched other activities within the same task it needed to be
migrated from activity to activity and task to task. This became
too complicated and was at the wrong level to begin with.
By moving the flag to TaskRecord.mOnTopOfHome the logic is simpler
and the results more predictable.
Fixes bug 10602256.
Change-Id: If0b752522b77be9918f1dba221d0ff670fc01af8
Add a test for emptiness before accessing either mTaskHistory[0] or
TaskRecord.mActivities[0]. This will keep us from hitting
IndexOutOfBoundsException.
Fixes bug 10789624.
Change-Id: If726df888a2c8b393788793b6220a6bffe2df883
Because recents sits on the same stack as launcher it can sometimes be
above launcher. When we were launching home activity because the flag
told us to we would sometimes launch recents instead. This fix makes
sure that the home activity is on the top when it is supposed to be
launched next.
Previously this was fixed by having recents move itself to the back
of the stack after it launched an activity (b/9750207 and ag/336019).
But that solution caused the AppTransition to be set to
TRANSIT_TASK_TO_BACK which left the SOFT_INPUT_IS_FORWARD_NAVIGATION
flag unset. This in turn caused IMEs to remain unlaunched when
returning from recents (b/10240567).
Fixes bug 10240567.
Change-Id: I35c6619af0e68d0e6d9ab87cad06ea7c27e11e27
In cases where the client is waiting for an activity to launch
(startActivityMayWait()) it is a bad idea to clear
ActivityRecord.displayStartTime when going into the pause state. If
displayStartTime is cleared before the activity is displayed,
the client will never be released.
This fix keeps pause from clearing displayStartTime if any client
is waiting for the activity to be displayed.
Fixes bug 10095558. But not a permanent fix, startActivityMayWait()
should not be called by any production code.
Change-Id: I7cbdcb04256f4a26233867c52aedd3bc4151adc3
Changes for translucent activity were causing activities to be
launched twice due to a recursive call into resumeTopActivity.
Putting the translucent action onto a handler removes the recursivity
and fixes the multiple launch problem.
Fixes bug 10556969.
Change-Id: I2bb53cd555b0aaf093ab35db2859acb10b58211e
- There is an assumption that moving a task to the back moves it
behind the home activity. This fix ensures that the home activity
will be launched by some activity before the task that has been
moved to the back.
- Convert "private final" declarations to private only.
- Convert container tests for size()==0 to isEmpty().
- Remove unused variable.
Fixes bug 10228536.
Change-Id: I51741ee7a09652e27afffcc50c14953bf0aa27ea
Having a single mHomeProcess in ActivityManagerService ignores the
possibility of multiple processes serving as home. Particularly when
we have a home activity that only serves to launch the true home
activity.
Fixes bug b10296766
Change-Id: I9e5c9c955c64f4b3df856b6bc66d6a0d93f85aab
ProcessStats is now called ProcessCpuTracker.
ProcessTracker is now ProcessStatsService, and its inner State
class is broken out into a separate top-level ProcessStats class.
This ProcessStats is moved to the framework, so we will be able
to use it elsewhere.
Change-Id: I6a127bcb835b6b474b72647c0b99b82c2137e5c5
Add more locations where mLastPausedActivity must be set null before
calling resumeTopActivityLocked().
Also separate the "No History" activity from mLastPausedActivity by
adding mLastNoHistoryActivity. This is necessary because now
mLastPausedActivity will be null when mLastNoHistoryActivity
is checked.
Continues to fix bug 10022212.
Change-Id: Ida543b0638c865127691dc51a6e0635062539659
Moving an activity to the back used to move it behind the launcher.
This meant that the test in resumeTopActivityLocked() for
mLastPausedActivity being equal to the top activity would fail after
moveTaskToBack(). In the new activity stack model the launcher is
on a different stack so if there is only one task then the test
now passes. Clearing mLastPausedActivity when moving an activity
forward now passes the test.
Fixes bug 10022212.
Change-Id: I17932d5c87d2483f13c29ae85a7067202a08f34e
When stopping an activity remove it from the list of activities to
be stopped when idle. Otherwise the activity gets stopped twice, at
the point of the fix here and later when idle.
Fixes bug 9755054.
Change-Id: If8d2249b75aeb9f8b6cea2d883046f3ad4c2e067
- Make sure Home activity goes in the correct task and on the correct
stack.
- Do not allow different users to be in the same task.
- Do not set stacks aside for each user.
Fixes bug 9775492.
Change-Id: I0e7954e917aac8482a1015a36923e02914e2b692
The activity manager now keeps a new "process state" for
each process, indicating the general execution and memory
state of the process. This closely follows the out-of-memory
adjustment and scheduling class that it currently tracks,
but roles these together (plus a little more info) into one
more semantically meaningful number.
This value is reported to each process as it changes, so they
can do things like tune the Dalvik garbage collector to match
the current process state.
I think I should also switch to this for process states. It
will give is more meaningful divisions of time for each process.
Also fix a problem in the activity stack where the previous
process was not being set correctly when moving between
activity stacks.
Change-Id: I598b1667dc46547f8fadae304e210c352cc9d41f
Rename convertToOpaque to convertFromTranslucent. Add the
counterpart to Activity.convertFromTranslucent() for returning from
opaque to a translucent Activity. The caller should wait until
TranslucentConversionListener.onTranslucentConversionComplete() is
called before actually changing the background to translucent.
Change-Id: Id04b026bcc4dd8bad9a33a7af126e1bb28fb9c03
There did not need to be one launching wakelock for each stack.
Moving it to the stack supervisor makes the logic much simpler
and fixes bug 9693439.
Change-Id: I5c9ae856540170a4d66fedb74becb6959c44dd8f
Note that we don't know the fully drawn time unless the app
tells it has finished drawing, so for apps that don't do this
we will end up just continuing to consider it to be drawing until
the next app is launched.
Change-Id: I766b71cf61b8d7324ccf239b7a44bef2518e2454
- New Activity.reportFullyDrawn() method that applicatins can call
when they know they are fully drawn, allowing us to have better
app launch time info. This data is also included in usage stats.
- Added total and free memory data "dumpsys meminfo".
- Tuned the moderate memory levels to be more aggressive about
considering the device getting low on RAM, and thus starting
to prune RAM from processes.
- Fixed issues in processstats when reading old data as well as
resetting and other various fixes.
Change-Id: I20efe7451afb4edfa1aeec448328ba601c24d869
I made the power manager more rigid, not allowing different uids
to use the same wake lock. This never should happen. I would
guess there is somewhere that the activity manager is acquiring
the wake lock without clearing the calling identity... but it is
hard to follow all the paths this may happen in. So here we add
some checks when acquiring/releasing the wake lock to make sure
it is being done as the system uid.
Also:
- Protect the new activity stack calls with a permission, and
make sure to clear the calling uid once past that.
- Collect uid data from process stats so we can correctly
associate CPU use with a uid even if we don't know about the
pid for some reason.
- Fix battery stats dump commands to clear calling uid before
executing so they aren't broken.
Change-Id: I0030d4f7b614e3270d794ecfc3669139a5703ce9
The determination for whether to launch home after an app dies
did not include whether the app would have returned home on exit.
This fixes that by checking what the app would naturally return to.
Fixes bug 9466261.
Change-Id: Ife6e895b9ef8c11b0a7f470d3eac4e88e763930b
Earlier CL, ag/321609, was overly aggressive. It should only have kept
the stack from moving when moveTaskToStack() was called. Instead the
change was applied to moveTaskToFront() as well. In order to remain
consistent with earlier behavior of moveTaskToFront() the stack
containing the task must move to the front as well. This movement
launches the activity at the top of the task. Without the stack
movement the activity never gets launched causing bug 9498455.
Fixes bug 9498455.
Change-Id: I2cb9119c23a226f7d211851df9e49f10f702b3ef
