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Expose PreciseDataConnectionState to Public API
1) Remove Unused Parameters for onDataConnectionState:
The data connection state broadcast includes a number of
parameters that are never used anywhere. To prepare for
updated code that relies on PreciseDataConnectionState,
remove the unused parameters that were internal-only and
included in the broadcast.
-LinkProperties
-NetworkCapabilities
-DataRoaming
-DataAllowed
-Interface name
2) Add Disconnecting State for Data Connections
Add a disconnecting state to correct a mismatch
between the internal and externally visible enums.
This will allow apps to know when connections are
in the process of being torn down, which in the case
of radio link issues could be as much as 15 seconds.
3) Expose PreciseDataConnection for Carrier Apps
Exposes the PSL for PreciseDataConnectionState along
with existing fields in the PreciseDataConnectionState
class.
-Make PreciseDataConnectionState public along with some
of its fields.
-Expose onPreciseDataConnectionStateChanged.
-Add onPreciseDataConnectionStatesChanged to provide PDCS
for all APNs in one cohesive batch.
4) Cache PreciseDataConnectionState by APN Type
In telephony registry, multiple different APN types
are all piped through the same cache entry, so every
time any APN changes relative to the previous type,
it triggers an update. This also means that when
a registrant requests the data connection state, only
the most recent type's state is updated.
This change caches entries in TelephonyRegistry based
on the APN's type (specifically the type among types
which triggered the change).
Bug: 143083105
Test: make update-api && make offline-sdk-docs
(no functional change in this CL).
Test: atest FrameworksTelephonyTests
Merged-In: Ib6a769f5a0cae923ca47a842733bd28755a90ed5
Change-Id: Ib6a769f5a0cae923ca47a842733bd28755a90ed5
(cherry picked from commit 4d340f12)
(cherry picked from commit c95b4e54)