A Dream is an activity that is launched by the window
manager after a specified idle time. You might think of this
as a "screen saver", but with the same capacity for
interactivity as any other application.
The window manager maintains a timer (like the screen lock
timer) that is reset on userActivity; the timer is suspended
during wakelocks and when the screen is off.
When the timer elapses, the user's preferred dream module is
launched (by reading Settings.Secure.DREAM_COMPONENT, which
is configured through the Settings app UI).
Like a dock app, the user can install new dreams and a
single application package may contain multiple dream
activities. Unlike the dock mode, however, there is no
"screensaver mode" for the system to manage. This allows us
to offer the user the ability to run a dream at any time, in
addition to making the overall mechanism quite simple.
There is no public API for this facility.
There is, however, a useful/recommended base class for dream
activities in the support library (change I4559a958).
Change-Id: Ied691856f88cfa38a7aca496d015f9a595da72f2
The POLICY_REJECT_BACKGROUND policy requires that network traffic be
blocked when a UID goes into the background. Even if the UID has an
activity in the foreground, it's considered "background" if the screen
is turned off.
This changes watches for SCREEN_ON/OFF broadcasts, and rule generation
now observes screen state. It also introduces an observer pattern so
that ActivityManager doesn't directly know about NetworkPolicy, and
moves the service management into SystemServer.
Change-Id: Ie7a84929d3ca60ae4578d47e19d5a8da10fd8d58
4 hours is excessive, and we want to save bandwidth on the NTP servers
Change-Id: Ic5ac4f4a8e62167206f3f620ea51635a2ea771d6
Signed-off-by: Mike Lockwood <lockwood@android.com>
Added a timeout mechanism to EventHub and InputReader so that
InputMappers can request timeouts to perform delayed processing of
input when needed.
Change-Id: I89c1171c9326c6e413042e3ee13aa9f7f1fc0454
Replaced VelocityTracker with a faster and more accurate
native implementation. This avoids the duplicate maintenance
overhead of having two implementations.
The new algorithm requires that the sample duration be at least
10ms in order to contribute to the velocity calculation. This
ensures that the velocity is not severely overestimated when
samples arrive in bursts.
The new algorithm computes the exponentially weighted moving
average using weights based on the relative duration of successive
sample periods.
The new algorithm is also more careful about how it handles
individual pointers going down or up and their effects on the
collected movement traces. The intent is to preserve the last
known velocity of pointers as they go up while also ensuring
that other motion samples do not count twice in that case.
Bug: 4086785
Change-Id: I95054102397c4b6a9076dc6a0fc841b4beec7920
1. Single finger tap performs a click.
2. Single finger movement moves the pointer (hovers).
3. Button press plus movement performs click or drag.
While dragging, the pointer follows the finger that is moving
fastest. This is important if there are additional fingers
down on the touch pad for the purpose of applying force
to an integrated button underneath.
4. Two fingers near each other moving in the same direction
are coalesced as a swipe gesture under the pointer.
5. Two or more fingers moving in arbitrary directions are
transformed into touches in the vicinity of the pointer.
This makes scale/zoom and rotate gestures possible.
Added a native VelocityTracker implementation to enable intelligent
switching of the active pointer during drags.
Change-Id: I7b7ddacc724fb1306e1590dbaebb740d3130d7cd
The transaction flags were atomically read-and-cleared to determine if
a transaction was needed, in the later case, mStateLock was taken to
keep the current state still during the transaction. This left a small
window open, where a layer could be removed after the transaction flags
were checked but before the transaction was started holding the lock.
In that situation eTraversalNeeded would be set but only seen during the
next transaction cycle; however, because we're handling this transaction
(because of another flag) it will be commited, "loosing" the information
about the layer being removed -- so when the next transaction cycle due
to eTraversalNeeded starts, it won't notice that layers have been removed
and won't populated the ditchedLayers array.
Bug: 4483049
Change-Id: Ibb5989312f871339928ee1aa3f9567770d72969b
Client::mLayers could be accessed from different threads.
On one side from Client::attachLayer() which is currently
called from a binder thread; on the other side from
Client::detachLayer() which is always called from the main
thread.
This could lead to a corruption of Client::mLayers.
We fix this issue by adding an internal lock to Client.
Bug: 4483046
Change-Id: I5262bf1124d9a65ec6f8ffd8e367356fc33a7536
Added startDataProfiling() and stopDataProfiling() to TrafficStats,
which can be used by apps to measure network usage delta between two
points in time. Currently takes two NetworkStats snapshots and returns
delta, which will eventually include tag-level granularity. Added
tests for NetworkStats delta subtraction.
Added NMS.getNetworkStatsUidDetail() that returns stats for specific
UID. Always gives stats access for the calling UID, otherwise enforces
that caller has permission. Fix readSingleLongFromFile(), since
/proc/ files don't have well-defined lengths.
Change-Id: Ic5b6414d8effbd66846e275b00d4b8a82c74589d
1. Refactored the code to avoid code duplication.
2. Fixed a bug in removing unused pointers from the event.
3. Fixed a bug that was crashing the explorer.
4. Sending hover exit immediately at the end of touch exploration
gesture rather with a delay.
Change-Id: Ie288cb8090d6fb5e5c715afa6ea5660b17c019e0
SensorService main thread wasn't java-enabled. however, in
some situations we end-up calling into the BatteryService from
that thread which causes a crash.
Change-Id: Iffba90e4c4b743dba84d62f1342001a9db31916d
