1. Before JellyBean touch exploration was a global setting controlled by the user via
the UI. However, if the enabled accessibility services do not handle touch exploration
mode, enabling it makes no sense. Therefore, in JellyBean the services request touch
exploration mode and the user is presented with a dialog to allow that and if she
does we store that in the database.
As a result of the above change a user that has enabled accessibility, touch
exploration, and some accessibility services running a pre-JellyBean system
version may lose touch exploration state, thus rendering the device useless unless
sighted help is provided, since the enabled service(s) are not in the list of
services to which the user granted a permission to put the device in touch explore
mode.
The fix is during a database upgrade to allow allow all enabled accessibility
services to toggle touch exploration provided accessibility and touch exploration
are enabled and no services can toggle touch exploration. Note that the user has
already manually enabled the services and touch exploration which means the she
has given consent to have these services work in touch exploration mode
bug:6996354
Change-Id: I0af2dc578cc4fbcc90043341035163b876978ab2
The major goal of this rewrite is to make it easier to implement
power management policies correctly. According, the new
implementation primarily uses state-based rather than event-based
triggers for applying changes to the current power state.
For example, when an application requests that the proximity
sensor be used to manage the screen state (by way of a wake lock),
the power manager makes note of the fact that the set of
wake locks changed. Then it executes a common update function
that recalculates the entire state, first looking at wake locks,
then considering user activity, and eventually determining whether
the screen should be turned on or off. At this point it may
make a request to a component called the DisplayPowerController
to asynchronously update the display's powe state. Likewise,
DisplayPowerController makes note of the updated power request
and schedules its own update function to figure out what needs
to be changed.
The big benefit of this approach is that it's easy to mutate
multiple properties of the power state simultaneously then
apply their joint effects together all at once. Transitions
between states are detected and resolved by the update in
a consistent manner.
The new power manager service has is implemented as a set of
loosely coupled components. For the most part, information
only flows one way through these components (by issuing a
request to that component) although some components support
sending a message back to indicate when the work has been
completed. For example, the DisplayPowerController posts
a callback runnable asynchronously to tell the PowerManagerService
when the display is ready. An important feature of this
approach is that each component neatly encapsulates its
state and maintains its own invariants. Moreover, we do
not need to worry about deadlocks or awkward mutual exclusion
semantics because most of the requests are asynchronous.
The benefits of this design are especially apparent in
the implementation of the screen on / off and brightness
control animations which are able to take advantage of
framework features like properties, ObjectAnimator
and Choreographer.
The screen on / off animation is now the responsibility
of the power manager (instead of surface flinger). This change
makes it much easier to ensure that the animation is properly
coordinated with other power state changes and eliminates
the cause of race conditions in the older implementation.
The because of the userActivity() function has been changed
so that it never wakes the device from sleep. This change
removes ambiguity around forcing or disabling user activity
for various purposes. To wake the device, use wakeUp().
To put it to sleep, use goToSleep(). Simple.
The power manager service interface and API has been significantly
simplified and consolidated. Also fixed some inconsistencies
related to how the minimum and maximum screen brightness setting
was presented in brightness control widgets and enforced behind
the scenes.
At present the following features are implemented:
- Wake locks.
- User activity.
- Wake up / go to sleep.
- Power state broadcasts.
- Battery stats and event log notifications.
- Dreams.
- Proximity screen off.
- Animated screen on / off transitions.
- Auto-dimming.
- Auto-brightness control for the screen backlight with
different timeouts for ramping up versus ramping down.
- Auto-on when plugged or unplugged.
- Stay on when plugged.
- Device administration maximum user activity timeout.
- Application controlled brightness via window manager.
The following features are not yet implemented:
- Reduced user activity timeout for the key guard.
- Reduced user activity timeout for the phone application.
- Coordinating screen on barriers with the window manager.
- Preventing auto-rotation during power state changes.
- Auto-brightness adjustment setting (feature was disabled
in previous version of the power manager service pending
an improved UI design so leaving it out for now).
- Interpolated brightness control (a proposed new scheme
for more compactly specifying auto-brightness levels
in config.xml).
- Button / keyboard backlight control.
- Change window manager to associated WorkSource with
KEEP_SCREEN_ON_FLAG wake lock instead of talking
directly to the battery stats service.
- Optionally support animating screen brightness when
turning on/off instead of playing electron beam animation
(config_animateScreenLights).
Change-Id: I1d7a52e98f0449f76d70bf421f6a7f245957d1d7
In a future version of Android, the default value for
<provider android:exported> will change from true to false.
Explicitly set android:exported="true"
Bug: 3306452
Change-Id: Iffe4dca4fefc92bb9f89698f149a87c16a7ce3c5
These have been created to reduce the size and complexity
of frameworks/base.
mms-common was created by moving all of
frameworks/base/core/java/com/google/android/mms
to:
frameworks/opt/mms
telephony-common was created by moving some of
frameworks/base/telephony
to:
frameworks/opt/telephony
Change-Id: If6cb3c6ff952767fc10210f923dc0e4b343cd4ad
The old version of the script is broken and is cached due to an error in
our gstatic configuration. We had to change the name to avoid hitting the
cached version on external proxies.
Bug: 6702042
Change-Id: I0e5ee8b3a6ae8c7ba11f5760f2f99d4b5614ac97
Introduced system property "mobiledata", which will be
used for default behavior of the mobile data connection
either on/off.
This is analog to how the setting for "dataroaming" is
handeled.
Change-Id: Ifae8822dedfa55a515671014e2e29d43c469e701
We now preserve any already-known AP configuration information when
restoring wifi from backup, instead of flatly overwriting the known
definitions with the historical ones. This means that if you are
performing setup while connected to an AP unknown in the restored
dataset, you will retain your connection instead of seeing it drop
partway through the restore process because suddenly the supplicant
"forgot" how to connect to it.
Duplicates are resolved by retaining the currently-defined network
configuration and discarding the historical one.
Bug 6443790
Change-Id: I1f44cc6a01fc4ae7c4b680682a10fcb7a0be65dc
Clean up related to new Vibration policy.
The vibrate behavior is now only derived from:
- presence of a vibrator on the device
- current ringer mode selected: NORMAL, VIBRATE or SILENT
If no vibrator is present the ringer mode can only be NORMAL or SILENT.
The control of ringer mode via volume keys when volume keys control the "master"
stream type (RING on phones, MUSIC on tablets) is as follows:
If a vibrator is present:
VOL- and volume equals 1: NORMAL => VIBRATE
VOL- and volume equals 0 and not continuous press: VIBRATE => SILENT
VOL+ and in SILENT mode: SILENT => VIBRATE
VOL+ and in VIBRATE mode: VIBRATE => NORMAL, volume = 1
If no vibrator is present:
VOL- and volume equals 0 and not continuous press: NORMAL => SILENT
VOL+ and in SILENT mode: SILENT => NORMAL, volume = 0
VIBRATE_ON and VIBRATE_IN_SILENT settings are not stored/retreived any more.
AudioService checks and corrects ringer mode and stream volumes if necessary when reading from
DB at boot time.
Also:
Added dump for stream volumes in AudioService.
Added device names missing in AudioSystem for USB accessory and USB device.
Issue: 6036529
Issue: 6414950
Issue: 6448163
Change-Id: I77fb821ec63e4e566320cac2701b4ac466e86aef
Using enableWriteAheadLogging() to enable WAL is inefficient because
we previously disabled WAL mode when the database was opened.
Switching from WAL to PERSIST then back to WAL is inefficient
and could slow down application launch time. It would be better
to leave the database in WAL mode when we open it to begin with.
To do that, we need to know ahead of time whether we will want to
have WAL enabled for the newly opened database.
Using this flag also reduces the chance that we will encounter
an error enabling WAL mode due to there being other open connections
to the database.
Bug: 6124556
Change-Id: I38ec7a528baeda9f1ef77e25e88b3ca4b6296200
Radio state reflects the state of the modem. SIM_READY, RUIM_READY,
NV_READY are subscription states and it is possible that the new cards
have multiple subscriptions. Remove the SIM states from Radio State and
introduce a new VOICE_RADIO_TECH message to identify the exact voice
technology. SIM states will continue to be identified from the
SIM_STATUS messages.
Change-Id: Ia67d54f43b6c3340d9cf5c27fcb6f7ef49ef4d40
Bug: 5738552
If value has ringer set to VIBRATE_OFF, we need to update it to the
now default, as VIBRATE_OFF is inconsistent with the new UI controls.
Make sure notification vibrate setting follows ringer vibrate setting.
Change-Id: I0f15a3d1ea8502d542e3178f732cc2503104458f
Bug: 5738552
If value has ringer set to VIBRATE_OFF, we need to update it to the
now default, as VIBRATE_OFF is inconsistent with the new UI controls.
Make sure notification vibrate setting follows ringer vibrate setting.
Change-Id: I6638c8a8729d850e71db10d27a0b50d24dc11f19
The URl from which to inject a screen-reader for WebView accessiblity support should be
configurable because: 1) The accessibility engineering team should be able to point
devices to a staging build of the screen-reader; 2) We would like to be able to change
this URL via the Google services mechanism.
bug:5718543
Change-Id: I3d4d343f1c93e0e0173f04b2912949fe8a3566b9
3-state item to toggle between Silent/Vibrate/Ringer in long-press power menu.
No volume dialog on lockscreen, unless Power menu is up.
Set VIBRATE_IN_SILENT=1 when upgrading device.
Change-Id: I097d216f96c4abdbd83420e0c477106951b3607d
New API to let you build an Intent whose base configuration is correct,
but has an additional "selector" to pick out the specific app that you
would like launched.
Change-Id: Ide9db6dc60e2844b7696cfe09b28337fe7dd63db
By default we do not speak passwords if the user has no headset. However,
many users find this too restrictive and would like a way to enable
password announcement. While we cannot speak the passwords all the time
,to avoid leaking them, we expose a preference so each user can choose
the option that best works for him/her.
bug:5712607
Change-Id: I6eb0c40834abe5297f7dc74be02d180a5bef0174
Improved quick launch bookmarks to support category-based shortcuts
instead of hardcoding package and class names for all apps.
Added a set of Intent categories for typical applications on the
platform.
Added support for some of the HID application launch usages to
reduce reliance on quick launch for special purpose keys. Some
keyboard vendors have hardcoded launch keys that synthesize
"Search + X" type key combos. The goal is to encourage them
to stop doing this by implementing more of HID.
Bug: 5674723
Change-Id: I79f1147c65a208efc3f67228c9f0fa5cd050c593
Copy the value of AUTO_TIME to AUTO_TIME_ZONE.
Don't upgrade screen timeout and auto brightness.
Bug: 5607851, 5217460
Also fix the default for vibrate mode. Bug: 5553900
Change-Id: I1b8d5215d55953f2b686e77bf55fd07110a08b8d
