Add Prefix per Carrier requirement

Some carrier requires if users dial an emergency number address with
some prefix, the combination of the prefix and the address is also a
valid emergency number to dial.

Bug: 122429213
Test: Treehugger
Change-Id: Ib9b96bb0a210aba64a8652984d22f3564813fa9d
Merged-In: Ib9b96bb0a210aba64a8652984d22f3564813fa9d
(cherry picked from commit 69f48c5e906512bf9ac56b315daa6d4dfdfb7600)

diff --git a/api/current.txt b/api/current.txt
index 0f7655c..36443b0 100755 (executable)
--- a/api/current.txt
+++ b/api/current.txt
@@ -42202,6 +42202,7 @@ package android.telephony {
     field public static final String KEY_EDITABLE_ENHANCED_4G_LTE_BOOL = "editable_enhanced_4g_lte_bool";
     field public static final String KEY_EDITABLE_VOICEMAIL_NUMBER_BOOL = "editable_voicemail_number_bool";
     field public static final String KEY_EDITABLE_VOICEMAIL_NUMBER_SETTING_BOOL = "editable_voicemail_number_setting_bool";
+    field public static final String KEY_EMERGENCY_NUMBER_PREFIX_STRING_ARRAY = "emergency_number_prefix_string_array";
     field public static final String KEY_ENABLE_DIALER_KEY_VIBRATION_BOOL = "enable_dialer_key_vibration_bool";
     field public static final String KEY_ENHANCED_4G_LTE_ON_BY_DEFAULT_BOOL = "enhanced_4g_lte_on_by_default_bool";
     field public static final String KEY_FORCE_HOME_NETWORK_BOOL = "force_home_network_bool";

diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index 3454c1c..bafec5c 100755 (executable)
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -2454,6 +2454,18 @@ public class CarrierConfigManager {
      */
     public static final String KEY_OPPORTUNISTIC_NETWORK_DATA_SWITCH_HYSTERESIS_TIME_LONG =
             "opportunistic_network_data_switch_hysteresis_time_long";
+
+    /**
+     * Indicates zero or more emergency number prefix(es), because some carrier requires
+     * if users dial an emergency number address with a specific prefix, the combination of the
+     * prefix and the address is also a valid emergency number to dial. For example, an emergency
+     * number prefix is 318, and the emergency number is 911. Both 318911 and 911 can be dialed by
+     * users for emergency call. An empty array of string indicates that current carrier does not
+     * have this requirement.
+     */
+    public static final String KEY_EMERGENCY_NUMBER_PREFIX_STRING_ARRAY =
+            "emergency_number_prefix_string_array";
+
     /**
      * Determines whether the carrier wants to cancel the cs reject notification automatically
      * when the voice registration state changes.
@@ -2884,6 +2896,7 @@ public class CarrierConfigManager {
                 new int[] {
                         1 /* Roaming Indicator Off */
                 });
+        sDefaults.putStringArray(KEY_EMERGENCY_NUMBER_PREFIX_STRING_ARRAY, new String[0]);
         sDefaults.putString(KEY_5G_ICON_CONFIGURATION_STRING,
                 "connected_mmwave:None,connected:5G,not_restricted:None,restricted:None");
         sDefaults.putBoolean(KEY_AUTO_CANCEL_CS_REJECT_NOTIFICATION, false);