CarrierConfigManager.java revision 02008b78d095206a9b72bd3a5242c54cb6da0bdd 
1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.telephony;
18
19import com.android.internal.telephony.ICarrierConfigLoader;
20
21import android.annotation.NonNull;
22import android.annotation.Nullable;
23import android.annotation.SystemApi;
24import android.content.Context;
25import android.os.PersistableBundle;
26import android.os.RemoteException;
27import android.os.ServiceManager;
28
29/**
30 * Provides access to telephony configuration values that are carrier-specific.
31 * <p>
32 * Users should obtain an instance of this class by calling
33 * {@code mContext.getSystemService(Context.CARRIER_CONFIG_SERVICE);}
34 * </p>
35 *
36 * @see Context#getSystemService
37 * @see Context#CARRIER_CONFIG_SERVICE
38 */
39public class CarrierConfigManager {
40    private final static String TAG = "CarrierConfigManager";
41
42    /**
43     * @hide
44     */
45    public CarrierConfigManager() {
46    }
47
48    /**
49     * This intent is broadcast by the system when carrier config changes.
50     */
51    public static final String
52            ACTION_CARRIER_CONFIG_CHANGED = "android.telephony.action.CARRIER_CONFIG_CHANGED";
53
54    // Below are the keys used in carrier config bundles. To add a new variable, define the key and
55    // give it a default value in sDefaults. If you need to ship a per-network override in the
56    // system image, that can be added in packages/apps/CarrierConfig.
57
58    /**
59     * Flag indicating whether the Phone app should ignore EVENT_SIM_NETWORK_LOCKED
60     * events from the Sim.
61     * If true, this will prevent the IccNetworkDepersonalizationPanel from being shown, and
62     * effectively disable the "Sim network lock" feature.
63     */
64    public static final String
65            KEY_IGNORE_SIM_NETWORK_LOCKED_EVENTS_BOOL = "ignore_sim_network_locked_events_bool";
66
67    /**
68     * Flag indicating whether the Phone app should provide a "Dismiss" button on the SIM network
69     * unlock screen. The default value is true. If set to false, there will be *no way* to dismiss
70     * the SIM network unlock screen if you don't enter the correct unlock code. (One important
71     * consequence: there will be no way to make an Emergency Call if your SIM is network-locked and
72     * you don't know the PIN.)
73     */
74    public static final String
75            KEY_SIM_NETWORK_UNLOCK_ALLOW_DISMISS_BOOL = "sim_network_unlock_allow_dismiss_bool";
76
77    /** Flag indicating if the phone is a world phone */
78    public static final String KEY_WORLD_PHONE_BOOL = "world_phone_bool";
79
80    /**
81     * If true, enable vibration (haptic feedback) for key presses in the EmergencyDialer activity.
82     * The pattern is set on a per-platform basis using config_virtualKeyVibePattern. To be
83     * consistent with the regular Dialer, this value should agree with the corresponding values
84     * from config.xml under apps/Contacts.
85     */
86    public static final String
87            KEY_ENABLE_DIALER_KEY_VIBRATION_BOOL = "key_enable_dialer_vibration_bool";
88
89    /** Flag indicating if dtmf tone type is enabled */
90    public static final String KEY_DTMF_TYPE_ENABLED_BOOL = "dtmf_type_enabled_bool";
91
92    /** Flag indicating if auto retry is enabled */
93    public static final String KEY_AUTO_RETRY_ENABLED_BOOL = "auto_retry_enabled_bool";
94
95    /**
96     * Determine whether we want to play local DTMF tones in a call, or just let the radio/BP handle
97     * playing of the tones.
98     */
99    public static final String KEY_ALLOW_LOCAL_DTMF_TONES_BOOL = "allow_local_dtmf_tones_bool";
100
101    /**
102     * If true, show an onscreen "Dial" button in the dialer. In practice this is used on all
103     * platforms, even the ones with hard SEND/END keys, but for maximum flexibility it's controlled
104     * by a flag here (which can be overridden on a per-product basis.)
105     */
106    public static final String KEY_SHOW_ONSCREEN_DIAL_BUTTON_BOOL = "show_onscreen_dial_button_bool";
107
108    /** Determines if device implements a noise suppression device for in call audio. */
109    public static final String
110            KEY_HAS_IN_CALL_NOISE_SUPPRESSION_BOOL = "has_in_call_noise_suppression_bool";
111
112    /**
113     * Determines if the current device should allow emergency numbers to be logged in the Call Log.
114     * (Some carriers require that emergency calls *not* be logged, presumably to avoid the risk of
115     * accidental redialing from the call log UI. This is a good idea, so the default here is
116     * false.)
117     * <p>
118     * TODO: on the other hand, it might still be useful to have some record of the emergency calls
119     * you've made, or to be able to look up the exact date/time of an emergency call. So perhaps we
120     * <b>should</b> log those calls, but instead fix the call log to disable the "call" button for
121     * emergency numbers.
122     */
123    public static final String
124            KEY_ALLOW_EMERGENCY_NUMBERS_IN_CALL_LOG_BOOL = "allow_emergency_numbers_in_call_log_bool";
125
126    /** If true, removes the Voice Privacy option from Call Settings */
127    public static final String KEY_VOICE_PRIVACY_DISABLE_BOOL = "voice_privacy_disable_bool";
128
129    /** Control whether users can reach the carrier portions of Cellular Network Settings. */
130    public static final String
131            KEY_HIDE_CARRIER_NETWORK_SETTINGS_BOOL = "hide_carrier_network_settings_bool";
132
133    /** Control whether users can edit APNs in Settings. */
134    public static final String KEY_APN_EXPAND_BOOL = "apn_expand_bool";
135
136    /** Control whether users can choose a network operator. */
137    public static final String KEY_OPERATOR_SELECTION_EXPAND_BOOL = "operator_selection_expand_bool";
138
139    /** Used in Cellular Network Settings for preferred network type. */
140    public static final String KEY_PREFER_2G_BOOL = "prefer_2g_bool";
141
142    /** Show cdma network mode choices 1x, 3G, global etc. */
143    public static final String KEY_SHOW_CDMA_CHOICES_BOOL = "show_cdma_choices_bool";
144
145    /** CDMA activation goes through HFA */
146    public static final String KEY_USE_HFA_FOR_PROVISIONING_BOOL = "use_hfa_for_provisioning_bool";
147
148    /**
149     * CDMA activation goes through OTASP.
150     * <p>
151     * TODO: This should be combined with config_use_hfa_for_provisioning and implemented as an enum
152     * (NONE, HFA, OTASP).
153     */
154    public static final String KEY_USE_OTASP_FOR_PROVISIONING_BOOL = "use_otasp_for_provisioning_bool";
155
156    /** Display carrier settings menu if true */
157    public static final String KEY_CARRIER_SETTINGS_ENABLE_BOOL = "carrier_settings_enable_bool";
158
159    /** Does not display additional call seting for IMS phone based on GSM Phone */
160    public static final String KEY_ADDITIONAL_CALL_SETTING_BOOL = "additional_call_setting_bool";
161
162    /** Show APN Settings for some CDMA carriers */
163    public static final String KEY_SHOW_APN_SETTING_CDMA_BOOL = "show_apn_setting_cdma_bool";
164
165    /** After a CDMA conference call is merged, the swap button should be displayed. */
166    public static final String KEY_SUPPORT_SWAP_AFTER_MERGE_BOOL = "support_swap_after_merge_bool";
167
168    /**
169     * Determine whether the voicemail notification is persistent in the notification bar. If true,
170     * the voicemail notifications cannot be dismissed from the notification bar.
171     */
172    public static final String
173            KEY_VOICEMAIL_NOTIFICATION_PERSISTENT_BOOL = "voicemail_notification_persistent_bool";
174
175    /** For IMS video over LTE calls, determines whether video pause signalling is supported. */
176    public static final String
177            KEY_SUPPORT_PAUSE_IMS_VIDEO_CALLS_BOOL = "support_pause_ims_video_calls_bool";
178
179    /**
180     * Disables dialing "*228" (OTASP provisioning) on CDMA carriers where it is not supported or is
181     * potentially harmful by locking the SIM to 3G.
182     */
183    public static final String
184            KEY_DISABLE_CDMA_ACTIVATION_CODE_BOOL = "disable_cdma_activation_code_bool";
185
186    /**
187     * Flag specifying whether VoLTE should be available for carrier, independent of carrier
188     * provisioning. If false: hard disabled. If true: then depends on carrier provisioning,
189     * availability, etc.
190     */
191    public static final String KEY_CARRIER_VOLTE_AVAILABLE_BOOL = "carrier_volte_available_bool";
192
193    /** Flag specifying whether VoLTE availability is based on provisioning. */
194    public static final String KEY_CARRIER_VOLTE_PROVISIONED_BOOL = "carrier_volte_provisioned_bool";
195
196    /** Flag specifying whether VoLTE TTY is supported. */
197    public static final String KEY_CARRIER_VOLTE_TTY_SUPPORTED_BOOL
198            = "carrier_volte_tty_supported_bool";
199
200    /**
201     * If Voice Radio Technology is RIL_RADIO_TECHNOLOGY_LTE:14 or RIL_RADIO_TECHNOLOGY_UNKNOWN:0
202     * this is the value that should be used instead. A configuration value of
203     * RIL_RADIO_TECHNOLOGY_UNKNOWN:0 means there is no replacement value and that the default
204     * assumption for phone type (GSM) should be used.
205     */
206    public static final String KEY_VOLTE_REPLACEMENT_RAT_INT = "volte_replacement_rat_int";
207
208    /* The following 3 fields are related to carrier visual voicemail. */
209
210    /**
211     * The carrier number MO sms messages are sent to.
212     *
213     * @hide
214     */
215    public static final String KEY_VVM_DESTINATION_NUMBER_STRING = "vvm_destination_number_string";
216
217    /**
218     * The port through which the MO sms messages are sent through.
219     *
220     * @hide
221     */
222    public static final String KEY_VVM_PORT_NUMBER_INT = "vvm_port_number_int";
223
224    /**
225     * The type of visual voicemail protocol the carrier adheres to. See {@link TelephonyManager}
226     * for possible values. For example {@link TelephonyManager#VVM_TYPE_OMTP}.
227     *
228     * @hide
229     */
230    public static final String KEY_VVM_TYPE_STRING = "vvm_type_string";
231
232    /**
233     * The package name of the carrier's visual voicemail app to ensure that dialer visual voicemail
234     * and carrier visual voicemail are not active at the same time.
235     *
236     * @hide
237     */
238    public static final String KEY_CARRIER_VVM_PACKAGE_NAME_STRING = "carrier_vvm_package_name_string";
239
240    /**
241     * Flag specifying whether an additional (client initiated) intent needs to be sent on System
242     * update
243     * @hide
244     */
245    public static final String KEY_CI_ACTION_ON_SYS_UPDATE_BOOL = "ci_action_on_sys_update_bool";
246
247    /**
248     * Intent to be sent for the additional action on System update
249     * @hide
250     */
251    public static final String KEY_CI_ACTION_ON_SYS_UPDATE_INTENT_STRING =
252            "ci_action_on_sys_update_intent_string";
253
254    /**
255     * Extra to be included in the intent sent for additional action on System update
256     * @hide
257     */
258    public static final String KEY_CI_ACTION_ON_SYS_UPDATE_EXTRA_STRING =
259            "ci_action_on_sys_update_extra_string";
260
261    /**
262     * Value of extra included in intent sent for additional action on System update
263     * @hide
264     */
265    public static final String KEY_CI_ACTION_ON_SYS_UPDATE_EXTRA_VAL_STRING =
266            "ci_action_on_sys_update_extra_val_string";
267
268    // These variables are used by the MMS service and exposed through another API, {@link
269    // SmsManager}. The variable names and string values are copied from there.
270    public static final String KEY_MMS_ALIAS_ENABLED_BOOL = "aliasEnabled";
271    public static final String KEY_MMS_ALLOW_ATTACH_AUDIO_BOOL = "allowAttachAudio";
272    public static final String KEY_MMS_APPEND_TRANSACTION_ID_BOOL = "enabledTransID";
273    public static final String KEY_MMS_GROUP_MMS_ENABLED_BOOL = "enableGroupMms";
274    public static final String KEY_MMS_MMS_DELIVERY_REPORT_ENABLED_BOOL = "enableMMSDeliveryReports";
275    public static final String KEY_MMS_MMS_ENABLED_BOOL = "enabledMMS";
276    public static final String KEY_MMS_MMS_READ_REPORT_ENABLED_BOOL = "enableMMSReadReports";
277    public static final String KEY_MMS_MULTIPART_SMS_ENABLED_BOOL = "enableMultipartSMS";
278    public static final String KEY_MMS_NOTIFY_WAP_MMSC_ENABLED_BOOL = "enabledNotifyWapMMSC";
279    public static final String KEY_MMS_SEND_MULTIPART_SMS_AS_SEPARATE_MESSAGES_BOOL = "sendMultipartSmsAsSeparateMessages";
280    public static final String KEY_MMS_SHOW_CELL_BROADCAST_APP_LINKS_BOOL = "config_cellBroadcastAppLinks";
281    public static final String KEY_MMS_SMS_DELIVERY_REPORT_ENABLED_BOOL = "enableSMSDeliveryReports";
282    public static final String KEY_MMS_SUPPORT_HTTP_CHARSET_HEADER_BOOL = "supportHttpCharsetHeader";
283    public static final String KEY_MMS_SUPPORT_MMS_CONTENT_DISPOSITION_BOOL = "supportMmsContentDisposition";
284    public static final String KEY_MMS_ALIAS_MAX_CHARS_INT = "aliasMaxChars";
285    public static final String KEY_MMS_ALIAS_MIN_CHARS_INT = "aliasMinChars";
286    public static final String KEY_MMS_HTTP_SOCKET_TIMEOUT_INT = "httpSocketTimeout";
287    public static final String KEY_MMS_MAX_IMAGE_HEIGHT_INT = "maxImageHeight";
288    public static final String KEY_MMS_MAX_IMAGE_WIDTH_INT = "maxImageWidth";
289    public static final String KEY_MMS_MAX_MESSAGE_SIZE_INT = "maxMessageSize";
290    public static final String KEY_MMS_MESSAGE_TEXT_MAX_SIZE_INT = "maxMessageTextSize";
291    public static final String KEY_MMS_RECIPIENT_LIMIT_INT = "recipientLimit";
292    public static final String KEY_MMS_SMS_TO_MMS_TEXT_LENGTH_THRESHOLD_INT = "smsToMmsTextLengthThreshold";
293    public static final String KEY_MMS_SMS_TO_MMS_TEXT_THRESHOLD_INT = "smsToMmsTextThreshold";
294    public static final String KEY_MMS_SUBJECT_MAX_LENGTH_INT = "maxSubjectLength";
295    public static final String KEY_MMS_EMAIL_GATEWAY_NUMBER_STRING = "emailGatewayNumber";
296    public static final String KEY_MMS_HTTP_PARAMS_STRING = "httpParams";
297    public static final String KEY_MMS_NAI_SUFFIX_STRING = "naiSuffix";
298    public static final String KEY_MMS_UA_PROF_TAG_NAME_STRING = "uaProfTagName";
299    public static final String KEY_MMS_UA_PROF_URL_STRING = "uaProfUrl";
300    public static final String KEY_MMS_USER_AGENT_STRING = "userAgent";
301
302    /** The default value for every variable. */
303    private final static PersistableBundle sDefaults;
304
305    static {
306        sDefaults = new PersistableBundle();
307        sDefaults.putBoolean(KEY_ADDITIONAL_CALL_SETTING_BOOL, true);
308        sDefaults.putBoolean(KEY_ALLOW_EMERGENCY_NUMBERS_IN_CALL_LOG_BOOL, false);
309        sDefaults.putBoolean(KEY_ALLOW_LOCAL_DTMF_TONES_BOOL, true);
310        sDefaults.putBoolean(KEY_APN_EXPAND_BOOL, true);
311        sDefaults.putBoolean(KEY_AUTO_RETRY_ENABLED_BOOL, false);
312        sDefaults.putBoolean(KEY_CARRIER_SETTINGS_ENABLE_BOOL, false);
313        sDefaults.putBoolean(KEY_CARRIER_VOLTE_AVAILABLE_BOOL, false);
314        sDefaults.putBoolean(KEY_CARRIER_VOLTE_PROVISIONED_BOOL, false);
315        sDefaults.putBoolean(KEY_CARRIER_VOLTE_TTY_SUPPORTED_BOOL, true);
316        sDefaults.putBoolean(KEY_DISABLE_CDMA_ACTIVATION_CODE_BOOL, false);
317        sDefaults.putBoolean(KEY_DTMF_TYPE_ENABLED_BOOL, false);
318        sDefaults.putBoolean(KEY_ENABLE_DIALER_KEY_VIBRATION_BOOL, true);
319        sDefaults.putBoolean(KEY_HAS_IN_CALL_NOISE_SUPPRESSION_BOOL, false);
320        sDefaults.putBoolean(KEY_HIDE_CARRIER_NETWORK_SETTINGS_BOOL, false);
321        sDefaults.putBoolean(KEY_IGNORE_SIM_NETWORK_LOCKED_EVENTS_BOOL, false);
322        sDefaults.putBoolean(KEY_OPERATOR_SELECTION_EXPAND_BOOL, true);
323        sDefaults.putBoolean(KEY_PREFER_2G_BOOL, true);
324        sDefaults.putBoolean(KEY_SHOW_APN_SETTING_CDMA_BOOL, false);
325        sDefaults.putBoolean(KEY_SHOW_CDMA_CHOICES_BOOL, false);
326        sDefaults.putBoolean(KEY_SHOW_ONSCREEN_DIAL_BUTTON_BOOL, true);
327        sDefaults.putBoolean(KEY_SIM_NETWORK_UNLOCK_ALLOW_DISMISS_BOOL, true);
328        sDefaults.putBoolean(KEY_SUPPORT_PAUSE_IMS_VIDEO_CALLS_BOOL, true);
329        sDefaults.putBoolean(KEY_SUPPORT_SWAP_AFTER_MERGE_BOOL, true);
330        sDefaults.putBoolean(KEY_USE_HFA_FOR_PROVISIONING_BOOL, false);
331        sDefaults.putBoolean(KEY_USE_OTASP_FOR_PROVISIONING_BOOL, false);
332        sDefaults.putBoolean(KEY_VOICEMAIL_NOTIFICATION_PERSISTENT_BOOL, false);
333        sDefaults.putBoolean(KEY_VOICE_PRIVACY_DISABLE_BOOL, false);
334        sDefaults.putBoolean(KEY_WORLD_PHONE_BOOL, false);
335        sDefaults.putInt(KEY_VOLTE_REPLACEMENT_RAT_INT, 0);
336        sDefaults.putString(KEY_VVM_DESTINATION_NUMBER_STRING, "");
337        sDefaults.putInt(KEY_VVM_PORT_NUMBER_INT, 0);
338        sDefaults.putString(KEY_VVM_TYPE_STRING, "");
339        sDefaults.putString(KEY_CARRIER_VVM_PACKAGE_NAME_STRING, "");
340        sDefaults.putBoolean(KEY_CI_ACTION_ON_SYS_UPDATE_BOOL, false);
341        sDefaults.putString(KEY_CI_ACTION_ON_SYS_UPDATE_INTENT_STRING, "");
342        sDefaults.putString(KEY_CI_ACTION_ON_SYS_UPDATE_EXTRA_STRING, "");
343        sDefaults.putString(KEY_CI_ACTION_ON_SYS_UPDATE_EXTRA_VAL_STRING, "");
344
345        // MMS defaults
346        sDefaults.putBoolean(KEY_MMS_ALIAS_ENABLED_BOOL, false);
347        sDefaults.putBoolean(KEY_MMS_ALLOW_ATTACH_AUDIO_BOOL, true);
348        sDefaults.putBoolean(KEY_MMS_APPEND_TRANSACTION_ID_BOOL, false);
349        sDefaults.putBoolean(KEY_MMS_GROUP_MMS_ENABLED_BOOL, true);
350        sDefaults.putBoolean(KEY_MMS_MMS_DELIVERY_REPORT_ENABLED_BOOL, false);
351        sDefaults.putBoolean(KEY_MMS_MMS_ENABLED_BOOL, true);
352        sDefaults.putBoolean(KEY_MMS_MMS_READ_REPORT_ENABLED_BOOL, false);
353        sDefaults.putBoolean(KEY_MMS_MULTIPART_SMS_ENABLED_BOOL, true);
354        sDefaults.putBoolean(KEY_MMS_NOTIFY_WAP_MMSC_ENABLED_BOOL, false);
355        sDefaults.putBoolean(KEY_MMS_SEND_MULTIPART_SMS_AS_SEPARATE_MESSAGES_BOOL, false);
356        sDefaults.putBoolean(KEY_MMS_SHOW_CELL_BROADCAST_APP_LINKS_BOOL, true);
357        sDefaults.putBoolean(KEY_MMS_SMS_DELIVERY_REPORT_ENABLED_BOOL, true);
358        sDefaults.putBoolean(KEY_MMS_SUPPORT_HTTP_CHARSET_HEADER_BOOL, false);
359        sDefaults.putBoolean(KEY_MMS_SUPPORT_MMS_CONTENT_DISPOSITION_BOOL, true);
360        sDefaults.putInt(KEY_MMS_ALIAS_MAX_CHARS_INT, 48);
361        sDefaults.putInt(KEY_MMS_ALIAS_MIN_CHARS_INT, 2);
362        sDefaults.putInt(KEY_MMS_HTTP_SOCKET_TIMEOUT_INT, 60 * 1000);
363        sDefaults.putInt(KEY_MMS_MAX_IMAGE_HEIGHT_INT, 480);
364        sDefaults.putInt(KEY_MMS_MAX_IMAGE_WIDTH_INT, 640);
365        sDefaults.putInt(KEY_MMS_MAX_MESSAGE_SIZE_INT, 300 * 1024);
366        sDefaults.putInt(KEY_MMS_MESSAGE_TEXT_MAX_SIZE_INT, -1);
367        sDefaults.putInt(KEY_MMS_RECIPIENT_LIMIT_INT, Integer.MAX_VALUE);
368        sDefaults.putInt(KEY_MMS_SMS_TO_MMS_TEXT_LENGTH_THRESHOLD_INT, -1);
369        sDefaults.putInt(KEY_MMS_SMS_TO_MMS_TEXT_THRESHOLD_INT, -1);
370        sDefaults.putInt(KEY_MMS_SUBJECT_MAX_LENGTH_INT, 40);
371        sDefaults.putString(KEY_MMS_EMAIL_GATEWAY_NUMBER_STRING, "");
372        sDefaults.putString(KEY_MMS_HTTP_PARAMS_STRING, "");
373        sDefaults.putString(KEY_MMS_NAI_SUFFIX_STRING, "");
374        sDefaults.putString(KEY_MMS_UA_PROF_TAG_NAME_STRING, "x-wap-profile");
375        sDefaults.putString(KEY_MMS_UA_PROF_URL_STRING, "");
376        sDefaults.putString(KEY_MMS_USER_AGENT_STRING, "");
377    }
378
379    /**
380     * Gets the configuration values for a particular subscription, which is associated with a
381     * specific SIM card. If an invalid subId is used, the returned config will contain default
382     * values.
383     *
384     * @param subId the subscription ID, normally obtained from {@link SubscriptionManager}.
385     * @return A {@link PersistableBundle} containing the config for the given subId, or default
386     *         values for an invalid subId.
387     */
388    @Nullable
389    public PersistableBundle getConfigForSubId(int subId) {
390        try {
391            return getICarrierConfigLoader().getConfigForSubId(subId);
392        } catch (RemoteException ex) {
393            Rlog.e(TAG, "Error getting config for subId " + Integer.toString(subId) + ": "
394                    + ex.toString());
395        } catch (NullPointerException ex) {
396            Rlog.e(TAG, "Error getting config for subId " + Integer.toString(subId) + ": "
397                    + ex.toString());
398        }
399        return null;
400    }
401
402    /**
403     * Gets the configuration values for the default subscription.
404     *
405     * @see #getConfigForSubId
406     */
407    @Nullable
408    public PersistableBundle getConfig() {
409        return getConfigForSubId(SubscriptionManager.getDefaultSubId());
410    }
411
412    /**
413     * Calling this method triggers telephony services to fetch the current carrier configuration.
414     * <p>
415     * Normally this does not need to be called because the platform reloads config on its own.
416     * This should be called by a carrier service app if it wants to update config at an arbitrary
417     * moment.
418     * </p>
419     * <p>
420     * This method returns before the reload has completed, and
421     * {@link android.service.carrier.CarrierService#onLoadConfig} will be called from an
422     * arbitrary thread.
423     * </p>
424     */
425    public void notifyConfigChangedForSubId(int subId) {
426        try {
427            getICarrierConfigLoader().notifyConfigChangedForSubId(subId);
428        } catch (RemoteException ex) {
429            Rlog.e(TAG, "Error reloading config for subId=" + subId + ": " + ex.toString());
430        } catch (NullPointerException ex) {
431            Rlog.e(TAG, "Error reloading config for subId=" + subId + ": " + ex.toString());
432        }
433    }
434
435    /**
436     * Request the carrier config loader to update the cofig for phoneId.
437     * <p>
438     * Depending on simState, the config may be cleared or loaded from config app. This is only used
439     * by SubscriptionInfoUpdater.
440     * </p>
441     *
442     * @hide
443     */
444    @SystemApi
445    public void updateConfigForPhoneId(int phoneId, String simState) {
446        try {
447            getICarrierConfigLoader().updateConfigForPhoneId(phoneId, simState);
448        } catch (RemoteException ex) {
449            Rlog.e(TAG, "Error updating config for phoneId=" + phoneId + ": " + ex.toString());
450        } catch (NullPointerException ex) {
451            Rlog.e(TAG, "Error updating config for phoneId=" + phoneId + ": " + ex.toString());
452        }
453    }
454
455    /**
456     * Returns a new bundle with the default value for every supported configuration variable.
457     *
458     * @hide
459     */
460    @NonNull
461    @SystemApi
462    public static PersistableBundle getDefaultConfig() {
463        return new PersistableBundle(sDefaults);
464    }
465
466    /** @hide */
467    private ICarrierConfigLoader getICarrierConfigLoader() {
468        return ICarrierConfigLoader.Stub
469                .asInterface(ServiceManager.getService(Context.CARRIER_CONFIG_SERVICE));
470    }
471}
472