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Commit 032dd289 authored by rambowang's avatar rambowang
Browse files

Update EmergencyNumberTracker with new CarrierConfigManager APIs 

- Replace carrier config change broadcast receiver with listener
- Retrieve subset of carrier config as needed to save memory

Bug: 263267340
Test: atest EmergencyNumberTrackerTest
Change-Id: I7241243c892e5247ed336469bcdae158e337d1a2
Merged-In: I7241243c892e5247ed336469bcdae158e337d1a2
(cherry picked from commit 8955f098)
parent 99f4f9d9

src/java/com/android/internal/telephony/emergency/EmergencyNumberTracker.java

+40 −27
Original line number Diff line number Diff line
@@ -16,10 +16,10 @@ 


package com.android.internal.telephony.emergency;



import android.annotation.NonNull;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.os.AsyncResult;

import android.os.Environment;

import android.os.Handler;
@@ -142,10 +142,6 @@ public class EmergencyNumberTracker extends Handler { 
        @Override

        public void onReceive(Context context, Intent intent) {

            if (intent.getAction().equals(

                    CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED)) {

                onCarrierConfigChanged();

                return;

            } else if (intent.getAction().equals(

                    TelephonyManager.ACTION_NETWORK_COUNTRY_CHANGED)) {

                int phoneId = intent.getIntExtra(PhoneConstants.PHONE_KEY, -1);

                if (phoneId == mPhone.getPhoneId()) {
@@ -170,22 +166,20 @@ public class EmergencyNumberTracker extends Handler { 
            CarrierConfigManager configMgr = (CarrierConfigManager)

                    mPhone.getContext().getSystemService(Context.CARRIER_CONFIG_SERVICE);

            if (configMgr != null) {

                PersistableBundle b = configMgr.getConfigForSubId(mPhone.getSubId());

                if (b != null) {

                PersistableBundle b = getCarrierConfigSubset(

                        CarrierConfigManager.KEY_EMERGENCY_NUMBER_PREFIX_STRING_ARRAY);

                if (!b.isEmpty()) {

                    mEmergencyNumberPrefix = b.getStringArray(

                            CarrierConfigManager.KEY_EMERGENCY_NUMBER_PREFIX_STRING_ARRAY);

                }



                // Callback which directly handle config change should be executed on handler thread

                configMgr.registerCarrierConfigChangeListener(this::post,

                        (slotIndex, subId, carrierId, specificCarrierId) ->

                                onCarrierConfigUpdated(slotIndex));

            } else {

                loge("CarrierConfigManager is null.");

            }



            // Receive Carrier Config Changes

            IntentFilter filter = new IntentFilter(

                    CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED);

            // Receive Telephony Network Country Changes

            filter.addAction(TelephonyManager.ACTION_NETWORK_COUNTRY_CHANGED);



            mPhone.getContext().registerReceiver(mIntentReceiver, filter);

        } else {

            loge("mPhone is null.");

        }
@@ -333,24 +327,43 @@ public class EmergencyNumberTracker extends Handler { 
        }

    }



    private void onCarrierConfigChanged() {

    private void onCarrierConfigUpdated(int slotIndex) {

        if (mPhone != null) {

            CarrierConfigManager configMgr = (CarrierConfigManager)

                    mPhone.getContext().getSystemService(Context.CARRIER_CONFIG_SERVICE);

            if (configMgr != null) {

                PersistableBundle b = configMgr.getConfigForSubId(mPhone.getSubId());

                if (b != null) {

                    String[] emergencyNumberPrefix = b.getStringArray(

            if (slotIndex != mPhone.getPhoneId()) return;



            PersistableBundle b =

                    getCarrierConfigSubset(

                            CarrierConfigManager.KEY_EMERGENCY_NUMBER_PREFIX_STRING_ARRAY);

            if (!b.isEmpty()) {

                String[] emergencyNumberPrefix =

                        b.getStringArray(

                                CarrierConfigManager.KEY_EMERGENCY_NUMBER_PREFIX_STRING_ARRAY);

                if (!Arrays.equals(mEmergencyNumberPrefix, emergencyNumberPrefix)) {

                        this.obtainMessage(EVENT_UPDATE_EMERGENCY_NUMBER_PREFIX,

                                emergencyNumberPrefix).sendToTarget();

                    }

                    this.obtainMessage(EVENT_UPDATE_EMERGENCY_NUMBER_PREFIX, emergencyNumberPrefix)

                            .sendToTarget();

                }

            }

        } else {

            loge("onCarrierConfigChanged mPhone is null.");

            loge("onCarrierConfigurationChanged mPhone is null.");

        }

    }



    @NonNull

    private PersistableBundle getCarrierConfigSubset(String key) {

        PersistableBundle bundle = new PersistableBundle();



        if (mPhone != null) {

            CarrierConfigManager ccm =

                    mPhone.getContext().getSystemService(CarrierConfigManager.class);

            try {

                if (ccm != null) {

                    bundle = ccm.getConfigForSubId(mPhone.getPhoneId(), key);

                }

            } catch (RuntimeException e) {

                loge("CarrierConfigLoader is not available.");

            }

        }

        return bundle;

    }



    private String getInitialCountryIso() {