FusionEngine now attaches a secondary location that has never seen
GPS data to its result. LocationFudger uses the GPS-less location so
that COARSE apps never see data from the GPS provider.
When the previous location is updated, the previous GPS-less location
is carried over if the location update was GPS-only.
Additionally, apps without FINE permission are not notified when GPS
location changes, and any attempt to use GPS_PROVIDER without FINE
permission is met by a stern SecurityException.
Bug: 7153659
Change-Id: I12f26725782892038ce1133561e1908d91378a4a
I had to re-do this change for MR1 because LocationManagerService changed
so much. Here is the original change description:
Add package-name-prefix blacklist for location updates.
The Settings.Secure value locationPackagePrefixBlacklist and
locationPackagePrefixWhitelist contains comma seperated package-name
prefixes.
Location & geo-fence updates are silently dropped if the receiving
package name has a prefix on the blacklist. Status updates are
not affected. All other API's work as before.
A content observer is used so run-time updates to the blacklist
apply immediately. There is both a blacklist and a whitelist.
The blacklist applies first, and then exemptions are allowed
from the whitelist. In other words, if your package name prefix
matches both the black AND white list, then it is allowed.
Bug: 6986553
Change-Id: I1e151e08bd7143e47db005bc3fe9795076398df7
Fix a couple of bugs, and modify the behavior of the random offset.
The random offset now slowly changes over time, to mitigate against
applications averaging out the offset over time while at a
grid boundary.
Change-Id: Iecffff29145b8c2b30d1eca1662cf9d3e8cff756
This was never a public API, so we don't need to follow
an orderly deprecation. And it breaks a CTS test:
cts/tests/tests/location/src/android/location/cts/LocationManagerTest.java:521: reference to getLastKnownLocation is ambiguous, both method getLastKnownLocation(java.lang.String) in android.location.LocationManager and method getLastKnownLocation(android.location.Criteria) in android.location.LocationManager match
mManager.getLastKnownLocation(null);
^
Change-Id: I503267e4fa577ce4bf684239da777f11b0e511f5
Themes: Fused Location, Geofencing, LocationRequest.
API changes
o Fused location is always returned when asking for location by Criteria.
o Fused location is never returned as a LocationProvider object, nor returned
as a provider String. This wouldn't make sense because the current API
design assumes that LocationProvider's have fixed properties (accuracy, power
etc).
o The fused location engine will tune itself based on the criteria passed
by applications.
o Deprecate LocationProvider. Apps should use fused location (via Criteria
class), instead of enumerating through LocationProvider objects. It is
also over-engineered: designed for a world with a plethora of location
providers that never materialized.
o The Criteria class is also over-engineered, with many methods that aren't
currently used, but for now we won't deprecate them since they may have
value in the future. It is now used to tune the fused location engine.
o Deprecate getBestProvider() and getProvider().
o Add getLastKnownLocation(Criteria), so we can return last known
fused locations.
o Apps with only ACCESS_COARSE_LOCATION _can_ now use the GPS, but the location
they receive will be fudged to a 1km radius. They can also use NETWORK
and fused locatoins, which are fudged in the same way if necessary.
o Totally deprecate Criteria, in favor of LocationRequest.
Criteria was designed to map QOS to a location provider. What we
really need is to map QOS to _locations_.
The death knell was the conflicting ACCURACY_ constants on
Criteria, with values 1, 2, 3, 1, 2. Yes not a typo.
o Totally deprecate LocationProvider.
o Deprecate test/mock provider support. They require a named provider,
which is a concept we are moving away from. We do not yet have a
replacement, but I think its ok to deprecate since you also
need to have 'allow mock locations' checked in developer settings.
They will continue to work.
o Deprecate event codes associated with provider status. The fused
provider is _always_ available.
o Introduce Geofence data object to provide an easier path fowards
for polygons etc.
Implementation changes
o Fused implementation: incoming (GPS and NLP) location fixes are given
a weight, that exponentially decays with respect to age and accuracy.
The half-life of age is ~60 seconds, and the half-life of accuracy is
~20 meters. The fixes are weighted and combined to output a fused
location.
o Move Fused Location impl into
frameworks/base/packages/FusedLocation
o Refactor Fused Location behind the IProvider AIDL interface. This allow us
to distribute newer versions of Fused Location in a new APK, at run-time.
o Introduce ServiceWatcher.java, to refactor code used for run-time upgrades of
Fused Location, and the NLP.
o Fused Location is by default run in the system server (but can be moved to
any process or pacakge, even at run-time).
o Plumb the Criteria requirements through to the Fused Location provider via
ILocation.sendExtraCommand(). I re-used this interface to avoid modifying the
ILocation interface, which would have broken run-time upgradability of the
NLP.
o Switch the geofence manager to using fused location.
o Clean up 'adb shell dumpsys location' output.
o Introduce config_locationProviderPackageNames and
config_overlay_locationProviderPackageNames to configure the default
and overlay package names for Geocoder, NLP and FLP.
o Lots of misc cleanup.
o Improve location fudging. Apply random vector then quantize.
o Hide internal POJO's from clients of com.android.location.provider.jar
(NLP and FLP). Introduce wrappers ProviderRequestUnbundled and
ProviderPropertiesUnbundled.
o Introduce ProviderProperties to collapse all the provider accuracy/
bearing/altitude/power plumbing (that is deprecated anyway).
o DELETE lots of code: DummyLocationProvider,
o Rename the (internal) LocationProvider to LocationProviderBase.
o Plumb pid, uid and packageName throughout
LocationManagerService#Receiver to support future features.
TODO: The FLP and Geofencer have a lot of room to be more intelligent
TODO: Documentation
TODO: test test test
Change-Id: Iacefd2f176ed40ce1e23b090a164792aa8819c55
The Settings.Secure value locationPackagePrefixBlacklist and
locationPackagePrefixWhitelist contains comma seperated package-name
prefixes.
Location & geo-fence updates are silently dropped if the receiving
package name has a prefix on the blacklist. Status updates are
not affected. All other API's work as before.
A content observer is used so run-time updates to the blacklist
apply immediately. There is both a blacklist and a whitelist.
The blacklist applies first, and then exemptions are allowed
from the whitelist. In other words, if your package name prefix
matches both the black AND white list, then it is allowed.
Change-Id: I4ea2ad56fa6bd75d32151bc250ac25c26a5777c4
Add getElapsedRealtimeNano():
Currently Location just has getTime() and setTime() based on UTC time.
This is entirely unreliable since it is not guaranteed monotonic.
There is a lot of code that compares fix age based on deltas -
and it is all broken in the case of a system clock change. System
clock can change when switching cellular networks (and in some
cases when switching towers).
Document the meaning of getAccuracy():
It is the horizontal, 95% confidence radius.
Make some fields mandatory if they are reported by a LocationProvider:
All Locations returned by a LocationProvider must include at the
minimum a lat, long, timestamps, and accuracy. This is necessary
to perform fused location. There are no public API's for applications
to feed locations into a location provider so this should not cause
any breakage.
If a LocationProvider does not fill in enough fields on a Location
object then it is dropped, and logged.
Bug: 4305998
Change-Id: I7df77125d8a64e174d7bc8c2708661b4f33461ea
Previously any geofence (proximity alert) would turn the GPS on at full rate.
Now, we modify the GPS interval with the distance to the nearest geofence.
A speed of 100m/s is assumed to calculate the next GPS update.
Also
o Major refactor of geofencing code, to make it easier to continue to improve.
o Discard proximity alerts when an app is removed.
o Misc cleanup of nearby code. There are other upcoming changes
that make this a good time for some house-keeping.
TODO:
The new geofencing heuristics are much better than before, but still
relatively naive. The next steps could be:
- Improve boundary detection
- Improve update thottling for large geofences
- Consider velocity when throttling
Change-Id: Ie6e23d2cb2b931eba5d2a2fc759543bb96e2f7d0
There is a long history in Android, on both GED and non GED devices
of GPS providers ignoring the minTime parameter making location updates
every second. The problem is usually poor GPS drivers that claim to
do scheduling but then do not.
By making the minTime parameter strict (instead of a hint) we can add
a CTS test to ensure that udpates to not occur too frequently. I believe
this is the desired behavior from apps. If apps want to take advantage
of more frequent updates when another application asks for those updates
then it can use the passive provider.
The CTS test for GPS has already been submitted (as part of CTS Verifier).
Bug: 6424983
Change-Id: I163b9e44ea7ab71530b86fc2282614e0150e90f1
-------------------------------------------------------
MCC detection fixes for CountryDetector
- Don't get and cache phone tpe at the initialization time. At this point
TelephonyManager is probably not ready yet.
- Refresh MCC whenever we get the service state changed callback, even when
the state hasn't actually changed, in order to make sure we get refresh
country properly when MCC changes.
- Also remove the initialization of mPhoneStateListener, which prevented us from
registering phone state listener properly.
- Also fix tests which were already failing.
Bug 5670680
-------------------------------------------------------
Add logging to country detector logic
This is for debugging purposes to verify the effects of
change Id45abeba1b1e843053ac2c946861b439ca568de4.
Bug: 5670680
Change-Id: I238d953484e2c8135f7dac70fce8662c8300a286
These log statements were dead code. That isn't much of a problem,
except that the 'e.getMessage()' that was being logged could be null,
and that would cause a real problem.
Change-Id: I8573bc687a7eda73782bd028e8ddc048a1954dc5
Previously external/libphonenumber accepted lower case
country codes (e.g. "us") but now it doesn't for performance reason.
Actually ISO 3166-1 doesn't allow lower cases, so we should not rely
on them.
Need to fix unit tests for PhoneNumberUtils, as it implicitly
relies on the previous behavior.
See also I3a3e6db84ed0d24290b1be19651fa9a82de4cc39
Bug: 4941319
Change-Id: If16f6531f274a0faf5e28724854409ca9b00a669
Added FLAG_AUTO_CANCEL to notification flags in GpsNetInitiatedHandler.java.
This is done to clear consecutive notifications in UI
Change-Id: I84be36af0b556f43ffd7d51ac04ff12300090ca5
Signed-off-by: Anshuman Pandey <anshuman.pandey@stericsson.com>
Signed-off-by: Christian Bejram <christian.bejram@stericsson.com>
* commit 'ce57a7f35344e76689d30f45964d1e37b78280cb':
GpsLocationProvider: Clean up HAL initialization/cleanup sequence
Fixed GSM encoded network initiated position request
Ensuring thread-safe usage of DateFormat.
Fixing infinite loop for zero duration.
Fix for an infinite loop while scrolling lists.
WAPPushManager, WAP Push over SMS message handler
Add --non-constant-id to aapt.
GSM encoded network initiated position requests were previously
not correctly decoded. The GSM encoded string was decoded as
ASCII but not all characters are encoded in the same way for
GSM and ASCII. These characters was not displayed.
Besides that, when the number of characters was evenly divided
by 8 the last character was lost. This is also corrected.
Change-Id: Ic70b7c28bbba1f2936a9cc99e78f8002cc5c8761
Notably, this removes exessive info about resources
from the content package, because it's not a good location
and the info is avilable in the dev guide, but also
added some of the info to the Resources class description.
Change-Id: Ie78af26c9cec66314deb98e53078f48e16c08e70
The strings used by the framework for network initiated position
requests are now string resources that can be properly localized.
Change-Id: If1cba89adb1bfcb9c8fdb59b9c5aa1107b11279e
First part, adding the existing classes in their new library. The old
code will be removed once everything gets switched to using this.
Change-Id: I27b6ad8c75c16f35300090e95f12a7db5608e3a3
Also rename Geocoder.isImplemented() to Geocoder.isPresent()
BUG: 3000738
BUG: 3001413
Change-Id: I56bb4e9a9c59f8b79de585eeb168f74c3ff1a853
Signed-off-by: Mike Lockwood <lockwood@android.com>
This fixes a problem where applications could ask the location
manager to do very heavy-weight things (like... say... update
location every minute), which would get accounted against the
system instead of the application because ultimately it is the
system making the heavy calls (wake locks, etc).
To solve this, we introduce a new class WorkSource representing
the source of some work. Wake locks and Wifi locks allow you
to set the source to use (but only if you are system code and thus
can get the permission to do so), which is what will be reported
to the battery stats until the actual caller.
For the initial implementation, the location manager keeps track
of all clients requesting periodic updates, and tells its providers
about them as a WorkSource param when setting their min update time.
The network location provider uses this to set the source on the
wake and wifi locks it acquires, when doing work because of the
update period.
This should also be used elsewhere, such as in the GPS provider,
but this is a good start.
Change-Id: I2b6ffafad9e90ecf15d7c502e2db675fd52ae3cf
XTRA data downloads are now strictly on demand from the GPS engine.
Also fix typo in handleDownloadXtraData()
Change-Id: Ied1a6e2e62134add4d965326aae909c86f834682
Signed-off-by: Mike Lockwood <lockwood@android.com>
See e.g. http://code.google.com/p/android/issues/detail?id=10042
This is also needed by the power control widget, which has no reliable
way otherwise of staying in-sync.
Change-Id: I8f2b6b79b1843329bae952a25ea56f15e3cf92aa
a. The CountryDetector detects the country the user is in
in order of mobile network, location, sim card or locale.
It will be used by contact and contact provider.
b. All added APIs are hidden at this stage.
Change-Id: I4ba278571ffb6ab6ded0996d4f440a18534f8ed4
if the location provider does not exist. Instead use the same behavior
as if the provider were disabled in settings
(return false for isProviderEnabled and null from getLastKnownLocation).
This eliminates for a lot of exception handling around some simple
queries to the location manager.
BUG: 2841014
Change-Id: I4fbe0c088e915c90969e13083201dd3e7f4029cb
Signed-off-by: Mike Lockwood <lockwood@android.com>
Remove ACCURACY_BEST and only use ACCURACY_MEDIUM for horizontal accuracy.
Remove accuracy priority support, since it be difficult to implement in some cases.
Change-Id: I785a781f8d8f3bf3be6693ad71d077b6eb280c31
Signed-off-by: Mike Lockwood <lockwood@android.com>
The Geocorder interface is not part of the Android core. It
requires a backend service which may or may not be available
on a device. The new isImplemented static method allows
apps to discover whether the Geocorder is in fact available
on the device.
Change-Id: I2b5cf7bcc9cce4766bcbb156e91edf34b01f9296
