TelephonyManager Carrier Network Change Notification

Adds a way for a carrier app to notify the system that an intended network
change is starting or ending. This can be used by a system PhoneStateListener
to provide custom UI or perform other actions during this period.

- Adds new public TelephonyManager API: notifyCarrierNetworkChange(boolean)
- Adds new @hide PhoneStateListener method: onCarrierNetworkChange(boolean)
- Functionality merely serves as a pass-through of data from an app to a
  PhoneStateListener (SystemUI for the intended use case)
- Protected by MODIFY_PHONE_STATE permission or hasCarrierPrivileges().

Bug: 11392659

Change-Id: I3199e21ec1ac124198f44b86c1534dd3ff1f6858

2 files changed, 2 insertions, 0 deletions

diff --git a/telephony/java/com/android/internal/telephony/IPhoneStateListener.aidl b/telephony/java/com/android/internal/telephony/IPhoneStateListener.aidl
index cea62ba..cbedb95 100644
--- a/telephony/java/com/android/internal/telephony/IPhoneStateListener.aidl
+++ b/telephony/java/com/android/internal/telephony/IPhoneStateListener.aidl
@@ -44,5 +44,6 @@ oneway interface IPhoneStateListener {
     void onDataConnectionRealTimeInfoChanged(in DataConnectionRealTimeInfo dcRtInfo);
     void onVoLteServiceStateChanged(in VoLteServiceState lteState);
     void onOemHookRawEvent(in byte[] rawData);
+    void onCarrierNetworkChange(in boolean active);
 }
 
diff --git a/telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl b/telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl
index 7d8a8d6..76b69ce 100644
--- a/telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl
@@ -69,4 +69,5 @@ interface ITelephonyRegistry {
     void notifyVoLteServiceStateChanged(in VoLteServiceState lteState);
     void notifyOemHookRawEventForSubscriber(in int subId, in byte[] rawData);
     void notifySubscriptionInfoChanged();
+    void notifyCarrierNetworkChange(in boolean active);
 }