TelephonyManager.java revision c5ac15a3e11c03951e269b243674858411204b67
1/*
2 * Copyright (C) 2008 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 android.annotation.SdkConstant;
20import android.annotation.SdkConstant.SdkConstantType;
21import android.content.Context;
22import android.os.Bundle;
23import android.os.RemoteException;
24import android.os.ServiceManager;
25import android.os.SystemProperties;
26import android.telephony.Rlog;
27
28import com.android.internal.telephony.IPhoneSubInfo;
29import com.android.internal.telephony.ITelephony;
30import com.android.internal.telephony.ITelephonyRegistry;
31import com.android.internal.telephony.PhoneConstants;
32import com.android.internal.telephony.RILConstants;
33import com.android.internal.telephony.TelephonyProperties;
34
35import java.io.FileInputStream;
36import java.io.IOException;
37import java.util.List;
38import java.util.regex.Matcher;
39import java.util.regex.Pattern;
40
41/**
42 * Provides access to information about the telephony services on
43 * the device. Applications can use the methods in this class to
44 * determine telephony services and states, as well as to access some
45 * types of subscriber information. Applications can also register
46 * a listener to receive notification of telephony state changes.
47 * <p>
48 * You do not instantiate this class directly; instead, you retrieve
49 * a reference to an instance through
50 * {@link android.content.Context#getSystemService
51 * Context.getSystemService(Context.TELEPHONY_SERVICE)}.
52 * <p>
53 * Note that access to some telephony information is
54 * permission-protected. Your application cannot access the protected
55 * information unless it has the appropriate permissions declared in
56 * its manifest file. Where permissions apply, they are noted in the
57 * the methods through which you access the protected information.
58 */
59public class TelephonyManager {
60    private static final String TAG = "TelephonyManager";
61
62    private static ITelephonyRegistry sRegistry;
63    private final Context mContext;
64
65    /** @hide */
66    public TelephonyManager(Context context) {
67        Context appContext = context.getApplicationContext();
68        if (appContext != null) {
69            mContext = appContext;
70        } else {
71            mContext = context;
72        }
73
74        if (sRegistry == null) {
75            sRegistry = ITelephonyRegistry.Stub.asInterface(ServiceManager.getService(
76                    "telephony.registry"));
77        }
78    }
79
80    /** @hide */
81    private TelephonyManager() {
82        mContext = null;
83    }
84
85    private static TelephonyManager sInstance = new TelephonyManager();
86
87    /** @hide
88    /* @deprecated - use getSystemService as described above */
89    public static TelephonyManager getDefault() {
90        return sInstance;
91    }
92
93    /** {@hide} */
94    public static TelephonyManager from(Context context) {
95        return (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
96    }
97
98    //
99    // Broadcast Intent actions
100    //
101
102    /**
103     * Broadcast intent action indicating that the call state (cellular)
104     * on the device has changed.
105     *
106     * <p>
107     * The {@link #EXTRA_STATE} extra indicates the new call state.
108     * If the new state is RINGING, a second extra
109     * {@link #EXTRA_INCOMING_NUMBER} provides the incoming phone number as
110     * a String.
111     *
112     * <p class="note">
113     * Requires the READ_PHONE_STATE permission.
114     *
115     * <p class="note">
116     * This was a {@link android.content.Context#sendStickyBroadcast sticky}
117     * broadcast in version 1.0, but it is no longer sticky.
118     * Instead, use {@link #getCallState} to synchronously query the current call state.
119     *
120     * @see #EXTRA_STATE
121     * @see #EXTRA_INCOMING_NUMBER
122     * @see #getCallState
123     */
124    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
125    public static final String ACTION_PHONE_STATE_CHANGED =
126            "android.intent.action.PHONE_STATE";
127
128    /**
129     * The Phone app sends this intent when a user opts to respond-via-message during an incoming
130     * call. By default, the device's default SMS app consumes this message and sends a text message
131     * to the caller. A third party app can also provide this functionality by consuming this Intent
132     * with a {@link android.app.Service} and sending the message using its own messaging system.
133     * <p>The intent contains a URI (available from {@link android.content.Intent#getData})
134     * describing the recipient, using either the {@code sms:}, {@code smsto:}, {@code mms:},
135     * or {@code mmsto:} URI schema. Each of these URI schema carry the recipient information the
136     * same way: the path part of the URI contains the recipient's phone number or a comma-separated
137     * set of phone numbers if there are multiple recipients. For example, {@code
138     * smsto:2065551234}.</p>
139     *
140     * <p>The intent may also contain extras for the message text (in {@link
141     * android.content.Intent#EXTRA_TEXT}) and a message subject
142     * (in {@link android.content.Intent#EXTRA_SUBJECT}).</p>
143     *
144     * <p class="note"><strong>Note:</strong>
145     * The intent-filter that consumes this Intent needs to be in a {@link android.app.Service}
146     * that requires the
147     * permission {@link android.Manifest.permission#SEND_RESPOND_VIA_MESSAGE}.</p>
148     * <p>For example, the service that receives this intent can be declared in the manifest file
149     * with an intent filter like this:</p>
150     * <pre>
151     * &lt;!-- Service that delivers SMS messages received from the phone "quick response" -->
152     * &lt;service android:name=".HeadlessSmsSendService"
153     *          android:permission="android.permission.SEND_RESPOND_VIA_MESSAGE"
154     *          android:exported="true" >
155     *   &lt;intent-filter>
156     *     &lt;action android:name="android.intent.action.RESPOND_VIA_MESSAGE" />
157     *     &lt;category android:name="android.intent.category.DEFAULT" />
158     *     &lt;data android:scheme="sms" />
159     *     &lt;data android:scheme="smsto" />
160     *     &lt;data android:scheme="mms" />
161     *     &lt;data android:scheme="mmsto" />
162     *   &lt;/intent-filter>
163     * &lt;/service></pre>
164     * <p>
165     * Output: nothing.
166     */
167    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
168    public static final String ACTION_RESPOND_VIA_MESSAGE =
169            "android.intent.action.RESPOND_VIA_MESSAGE";
170
171    /**
172     * The lookup key used with the {@link #ACTION_PHONE_STATE_CHANGED} broadcast
173     * for a String containing the new call state.
174     *
175     * @see #EXTRA_STATE_IDLE
176     * @see #EXTRA_STATE_RINGING
177     * @see #EXTRA_STATE_OFFHOOK
178     *
179     * <p class="note">
180     * Retrieve with
181     * {@link android.content.Intent#getStringExtra(String)}.
182     */
183    public static final String EXTRA_STATE = PhoneConstants.STATE_KEY;
184
185    /**
186     * Value used with {@link #EXTRA_STATE} corresponding to
187     * {@link #CALL_STATE_IDLE}.
188     */
189    public static final String EXTRA_STATE_IDLE = PhoneConstants.State.IDLE.toString();
190
191    /**
192     * Value used with {@link #EXTRA_STATE} corresponding to
193     * {@link #CALL_STATE_RINGING}.
194     */
195    public static final String EXTRA_STATE_RINGING = PhoneConstants.State.RINGING.toString();
196
197    /**
198     * Value used with {@link #EXTRA_STATE} corresponding to
199     * {@link #CALL_STATE_OFFHOOK}.
200     */
201    public static final String EXTRA_STATE_OFFHOOK = PhoneConstants.State.OFFHOOK.toString();
202
203    /**
204     * The lookup key used with the {@link #ACTION_PHONE_STATE_CHANGED} broadcast
205     * for a String containing the incoming phone number.
206     * Only valid when the new call state is RINGING.
207     *
208     * <p class="note">
209     * Retrieve with
210     * {@link android.content.Intent#getStringExtra(String)}.
211     */
212    public static final String EXTRA_INCOMING_NUMBER = "incoming_number";
213
214    /**
215     * Broadcast intent action indicating that a precise call state
216     * (cellular) on the device has changed.
217     *
218     * <p>
219     * The {@link #EXTRA_RINGING_CALL_STATE} extra indicates the ringing call state.
220     * The {@link #EXTRA_FOREGROUND_CALL_STATE} extra indicates the foreground call state.
221     * The {@link #EXTRA_BACKGROUND_CALL_STATE} extra indicates the background call state.
222     * The {@link #EXTRA_DISCONNECT_CAUSE} extra indicates the disconnect cause.
223     * The {@link #EXTRA_PRECISE_DISCONNECT_CAUSE} extra indicates the precise disconnect cause.
224     *
225     * <p class="note">
226     * Requires the READ_PRECISE_PHONE_STATE permission.
227     *
228     * @see #EXTRA_RINGING_CALL_STATE
229     * @see #EXTRA_FOREGROUND_CALL_STATE
230     * @see #EXTRA_BACKGROUND_CALL_STATE
231     * @see #EXTRA_DISCONNECT_CAUSE
232     * @see #EXTRA_PRECISE_DISCONNECT_CAUSE
233     *
234     * <p class="note">
235     * Requires the READ_PRECISE_PHONE_STATE permission.
236     *
237     * @hide
238     */
239    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
240    public static final String ACTION_PRECISE_CALL_STATE_CHANGED =
241            "android.intent.action.PRECISE_CALL_STATE";
242
243    /**
244     * The lookup key used with the {@link #ACTION_PRECISE_CALL_STATE_CHANGED} broadcast
245     * for an integer containing the state of the current ringing call.
246     *
247     * @see PreciseCallState#PRECISE_CALL_STATE_NOT_VALID
248     * @see PreciseCallState#PRECISE_CALL_STATE_IDLE
249     * @see PreciseCallState#PRECISE_CALL_STATE_ACTIVE
250     * @see PreciseCallState#PRECISE_CALL_STATE_HOLDING
251     * @see PreciseCallState#PRECISE_CALL_STATE_DIALING
252     * @see PreciseCallState#PRECISE_CALL_STATE_ALERTING
253     * @see PreciseCallState#PRECISE_CALL_STATE_INCOMING
254     * @see PreciseCallState#PRECISE_CALL_STATE_WAITING
255     * @see PreciseCallState#PRECISE_CALL_STATE_DISCONNECTED
256     * @see PreciseCallState#PRECISE_CALL_STATE_DISCONNECTING
257     *
258     * <p class="note">
259     * Retrieve with
260     * {@link android.content.Intent#getIntExtra(String name, int defaultValue)}.
261     *
262     * @hide
263     */
264    public static final String EXTRA_RINGING_CALL_STATE = "ringing_state";
265
266    /**
267     * The lookup key used with the {@link #ACTION_PRECISE_CALL_STATE_CHANGED} broadcast
268     * for an integer containing the state of the current foreground call.
269     *
270     * @see PreciseCallState#PRECISE_CALL_STATE_NOT_VALID
271     * @see PreciseCallState#PRECISE_CALL_STATE_IDLE
272     * @see PreciseCallState#PRECISE_CALL_STATE_ACTIVE
273     * @see PreciseCallState#PRECISE_CALL_STATE_HOLDING
274     * @see PreciseCallState#PRECISE_CALL_STATE_DIALING
275     * @see PreciseCallState#PRECISE_CALL_STATE_ALERTING
276     * @see PreciseCallState#PRECISE_CALL_STATE_INCOMING
277     * @see PreciseCallState#PRECISE_CALL_STATE_WAITING
278     * @see PreciseCallState#PRECISE_CALL_STATE_DISCONNECTED
279     * @see PreciseCallState#PRECISE_CALL_STATE_DISCONNECTING
280     *
281     * <p class="note">
282     * Retrieve with
283     * {@link android.content.Intent#getIntExtra(String name, int defaultValue)}.
284     *
285     * @hide
286     */
287    public static final String EXTRA_FOREGROUND_CALL_STATE = "foreground_state";
288
289    /**
290     * The lookup key used with the {@link #ACTION_PRECISE_CALL_STATE_CHANGED} broadcast
291     * for an integer containing the state of the current background call.
292     *
293     * @see PreciseCallState#PRECISE_CALL_STATE_NOT_VALID
294     * @see PreciseCallState#PRECISE_CALL_STATE_IDLE
295     * @see PreciseCallState#PRECISE_CALL_STATE_ACTIVE
296     * @see PreciseCallState#PRECISE_CALL_STATE_HOLDING
297     * @see PreciseCallState#PRECISE_CALL_STATE_DIALING
298     * @see PreciseCallState#PRECISE_CALL_STATE_ALERTING
299     * @see PreciseCallState#PRECISE_CALL_STATE_INCOMING
300     * @see PreciseCallState#PRECISE_CALL_STATE_WAITING
301     * @see PreciseCallState#PRECISE_CALL_STATE_DISCONNECTED
302     * @see PreciseCallState#PRECISE_CALL_STATE_DISCONNECTING
303     *
304     * <p class="note">
305     * Retrieve with
306     * {@link android.content.Intent#getIntExtra(String name, int defaultValue)}.
307     *
308     * @hide
309     */
310    public static final String EXTRA_BACKGROUND_CALL_STATE = "background_state";
311
312    /**
313     * The lookup key used with the {@link #ACTION_PRECISE_CALL_STATE_CHANGED} broadcast
314     * for an integer containing the disconnect cause.
315     *
316     * @see DisconnectCause
317     *
318     * <p class="note">
319     * Retrieve with
320     * {@link android.content.Intent#getIntExtra(String name, int defaultValue)}.
321     *
322     * @hide
323     */
324    public static final String EXTRA_DISCONNECT_CAUSE = "disconnect_cause";
325
326    /**
327     * The lookup key used with the {@link #ACTION_PRECISE_CALL_STATE_CHANGED} broadcast
328     * for an integer containing the disconnect cause provided by the RIL.
329     *
330     * @see PreciseDisconnectCause
331     *
332     * <p class="note">
333     * Retrieve with
334     * {@link android.content.Intent#getIntExtra(String name, int defaultValue)}.
335     *
336     * @hide
337     */
338    public static final String EXTRA_PRECISE_DISCONNECT_CAUSE = "precise_disconnect_cause";
339
340    /**
341     * Broadcast intent action indicating a data connection has changed,
342     * providing precise information about the connection.
343     *
344     * <p>
345     * The {@link #EXTRA_DATA_STATE} extra indicates the connection state.
346     * The {@link #EXTRA_DATA_NETWORK_TYPE} extra indicates the connection network type.
347     * The {@link #EXTRA_DATA_APN_TYPE} extra indicates the APN type.
348     * The {@link #EXTRA_DATA_APN} extra indicates the APN.
349     * The {@link #EXTRA_DATA_CHANGE_REASON} extra indicates the connection change reason.
350     * The {@link #EXTRA_DATA_IFACE_PROPERTIES} extra indicates the connection interface.
351     * The {@link #EXTRA_DATA_FAILURE_CAUSE} extra indicates the connection fail cause.
352     *
353     * <p class="note">
354     * Requires the READ_PRECISE_PHONE_STATE permission.
355     *
356     * @see #EXTRA_DATA_STATE
357     * @see #EXTRA_DATA_NETWORK_TYPE
358     * @see #EXTRA_DATA_APN_TYPE
359     * @see #EXTRA_DATA_APN
360     * @see #EXTRA_DATA_CHANGE_REASON
361     * @see #EXTRA_DATA_IFACE
362     * @see #EXTRA_DATA_FAILURE_CAUSE
363     * @hide
364     */
365    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
366    public static final String ACTION_PRECISE_DATA_CONNECTION_STATE_CHANGED =
367            "android.intent.action.PRECISE_DATA_CONNECTION_STATE_CHANGED";
368
369    /**
370     * The lookup key used with the {@link #ACTION_PRECISE_DATA_CONNECTION_STATE_CHANGED} broadcast
371     * for an integer containing the state of the current data connection.
372     *
373     * @see TelephonyManager#DATA_UNKNOWN
374     * @see TelephonyManager#DATA_DISCONNECTED
375     * @see TelephonyManager#DATA_CONNECTING
376     * @see TelephonyManager#DATA_CONNECTED
377     * @see TelephonyManager#DATA_SUSPENDED
378     *
379     * <p class="note">
380     * Retrieve with
381     * {@link android.content.Intent#getIntExtra(String name, int defaultValue)}.
382     *
383     * @hide
384     */
385    public static final String EXTRA_DATA_STATE = PhoneConstants.STATE_KEY;
386
387    /**
388     * The lookup key used with the {@link #ACTION_PRECISE_DATA_CONNECTION_STATE_CHANGED} broadcast
389     * for an integer containing the network type.
390     *
391     * @see TelephonyManager#NETWORK_TYPE_UNKNOWN
392     * @see TelephonyManager#NETWORK_TYPE_GPRS
393     * @see TelephonyManager#NETWORK_TYPE_EDGE
394     * @see TelephonyManager#NETWORK_TYPE_UMTS
395     * @see TelephonyManager#NETWORK_TYPE_CDMA
396     * @see TelephonyManager#NETWORK_TYPE_EVDO_0
397     * @see TelephonyManager#NETWORK_TYPE_EVDO_A
398     * @see TelephonyManager#NETWORK_TYPE_1xRTT
399     * @see TelephonyManager#NETWORK_TYPE_HSDPA
400     * @see TelephonyManager#NETWORK_TYPE_HSUPA
401     * @see TelephonyManager#NETWORK_TYPE_HSPA
402     * @see TelephonyManager#NETWORK_TYPE_IDEN
403     * @see TelephonyManager#NETWORK_TYPE_EVDO_B
404     * @see TelephonyManager#NETWORK_TYPE_LTE
405     * @see TelephonyManager#NETWORK_TYPE_EHRPD
406     * @see TelephonyManager#NETWORK_TYPE_HSPAP
407     *
408     * <p class="note">
409     * Retrieve with
410     * {@link android.content.Intent#getIntExtra(String name, int defaultValue)}.
411     *
412     * @hide
413     */
414    public static final String EXTRA_DATA_NETWORK_TYPE = PhoneConstants.DATA_NETWORK_TYPE_KEY;
415
416    /**
417     * The lookup key used with the {@link #ACTION_PRECISE_DATA_CONNECTION_STATE_CHANGED} broadcast
418     * for an String containing the data APN type.
419     *
420     * <p class="note">
421     * Retrieve with
422     * {@link android.content.Intent#getStringExtra(String name)}.
423     *
424     * @hide
425     */
426    public static final String EXTRA_DATA_APN_TYPE = PhoneConstants.DATA_APN_TYPE_KEY;
427
428    /**
429     * The lookup key used with the {@link #ACTION_PRECISE_DATA_CONNECTION_STATE_CHANGED} broadcast
430     * for an String containing the data APN.
431     *
432     * <p class="note">
433     * Retrieve with
434     * {@link android.content.Intent#getStringExtra(String name)}.
435     *
436     * @hide
437     */
438    public static final String EXTRA_DATA_APN = PhoneConstants.DATA_APN_KEY;
439
440    /**
441     * The lookup key used with the {@link #ACTION_PRECISE_DATA_CONNECTION_STATE_CHANGED} broadcast
442     * for an String representation of the change reason.
443     *
444     * <p class="note">
445     * Retrieve with
446     * {@link android.content.Intent#getStringExtra(String name)}.
447     *
448     * @hide
449     */
450    public static final String EXTRA_DATA_CHANGE_REASON = PhoneConstants.STATE_CHANGE_REASON_KEY;
451
452    /**
453     * The lookup key used with the {@link #ACTION_PRECISE_DATA_CONNECTION_STATE_CHANGED} broadcast
454     * for an String representation of the data interface.
455     *
456     * <p class="note">
457     * Retrieve with
458     * {@link android.content.Intent#getParcelableExtra(String name)}.
459     *
460     * @hide
461     */
462    public static final String EXTRA_DATA_LINK_PROPERTIES_KEY = PhoneConstants.DATA_LINK_PROPERTIES_KEY;
463
464    /**
465     * The lookup key used with the {@link #ACTION_PRECISE_DATA_CONNECTION_STATE_CHANGED} broadcast
466     * for the data connection fail cause.
467     *
468     * <p class="note">
469     * Retrieve with
470     * {@link android.content.Intent#getStringExtra(String name)}.
471     *
472     * @hide
473     */
474    public static final String EXTRA_DATA_FAILURE_CAUSE = PhoneConstants.DATA_FAILURE_CAUSE_KEY;
475
476    //
477    //
478    // Device Info
479    //
480    //
481
482    /**
483     * Returns the software version number for the device, for example,
484     * the IMEI/SV for GSM phones. Return null if the software version is
485     * not available.
486     *
487     * <p>Requires Permission:
488     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
489     */
490    public String getDeviceSoftwareVersion() {
491        try {
492            return getSubscriberInfo().getDeviceSvn();
493        } catch (RemoteException ex) {
494            return null;
495        } catch (NullPointerException ex) {
496            return null;
497        }
498    }
499
500    /**
501     * Returns the unique device ID, for example, the IMEI for GSM and the MEID
502     * or ESN for CDMA phones. Return null if device ID is not available.
503     *
504     * <p>Requires Permission:
505     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
506     */
507    public String getDeviceId() {
508        try {
509            return getSubscriberInfo().getDeviceId();
510        } catch (RemoteException ex) {
511            return null;
512        } catch (NullPointerException ex) {
513            return null;
514        }
515    }
516
517    /**
518     * Returns the current location of the device.
519     *<p>
520     * If there is only one radio in the device and that radio has an LTE connection,
521     * this method will return null. The implementation must not to try add LTE
522     * identifiers into the existing cdma/gsm classes.
523     *<p>
524     * In the future this call will be deprecated.
525     *<p>
526     * @return Current location of the device or null if not available.
527     *
528     * <p>Requires Permission:
529     * {@link android.Manifest.permission#ACCESS_COARSE_LOCATION ACCESS_COARSE_LOCATION} or
530     * {@link android.Manifest.permission#ACCESS_COARSE_LOCATION ACCESS_FINE_LOCATION}.
531     */
532    public CellLocation getCellLocation() {
533        try {
534            Bundle bundle = getITelephony().getCellLocation();
535            if (bundle.isEmpty()) return null;
536            CellLocation cl = CellLocation.newFromBundle(bundle);
537            if (cl.isEmpty())
538                return null;
539            return cl;
540        } catch (RemoteException ex) {
541            return null;
542        } catch (NullPointerException ex) {
543            return null;
544        }
545    }
546
547    /**
548     * Enables location update notifications.  {@link PhoneStateListener#onCellLocationChanged
549     * PhoneStateListener.onCellLocationChanged} will be called on location updates.
550     *
551     * <p>Requires Permission: {@link android.Manifest.permission#CONTROL_LOCATION_UPDATES
552     * CONTROL_LOCATION_UPDATES}
553     *
554     * @hide
555     */
556    public void enableLocationUpdates() {
557        try {
558            getITelephony().enableLocationUpdates();
559        } catch (RemoteException ex) {
560        } catch (NullPointerException ex) {
561        }
562    }
563
564    /**
565     * Disables location update notifications.  {@link PhoneStateListener#onCellLocationChanged
566     * PhoneStateListener.onCellLocationChanged} will be called on location updates.
567     *
568     * <p>Requires Permission: {@link android.Manifest.permission#CONTROL_LOCATION_UPDATES
569     * CONTROL_LOCATION_UPDATES}
570     *
571     * @hide
572     */
573    public void disableLocationUpdates() {
574        try {
575            getITelephony().disableLocationUpdates();
576        } catch (RemoteException ex) {
577        } catch (NullPointerException ex) {
578        }
579    }
580
581    /**
582     * Returns the neighboring cell information of the device. The getAllCellInfo is preferred
583     * and use this only if getAllCellInfo return nulls or an empty list.
584     *<p>
585     * In the future this call will be deprecated.
586     *<p>
587     * @return List of NeighboringCellInfo or null if info unavailable.
588     *
589     * <p>Requires Permission:
590     * (@link android.Manifest.permission#ACCESS_COARSE_UPDATES}
591     */
592    public List<NeighboringCellInfo> getNeighboringCellInfo() {
593        try {
594            return getITelephony().getNeighboringCellInfo(mContext.getOpPackageName());
595        } catch (RemoteException ex) {
596            return null;
597        } catch (NullPointerException ex) {
598            return null;
599        }
600    }
601
602    /** No phone radio. */
603    public static final int PHONE_TYPE_NONE = PhoneConstants.PHONE_TYPE_NONE;
604    /** Phone radio is GSM. */
605    public static final int PHONE_TYPE_GSM = PhoneConstants.PHONE_TYPE_GSM;
606    /** Phone radio is CDMA. */
607    public static final int PHONE_TYPE_CDMA = PhoneConstants.PHONE_TYPE_CDMA;
608    /** Phone is via SIP. */
609    public static final int PHONE_TYPE_SIP = PhoneConstants.PHONE_TYPE_SIP;
610
611    /**
612     * Returns the current phone type.
613     * TODO: This is a last minute change and hence hidden.
614     *
615     * @see #PHONE_TYPE_NONE
616     * @see #PHONE_TYPE_GSM
617     * @see #PHONE_TYPE_CDMA
618     * @see #PHONE_TYPE_SIP
619     *
620     * {@hide}
621     */
622    public int getCurrentPhoneType() {
623        try{
624            ITelephony telephony = getITelephony();
625            if (telephony != null) {
626                return telephony.getActivePhoneType();
627            } else {
628                // This can happen when the ITelephony interface is not up yet.
629                return getPhoneTypeFromProperty();
630            }
631        } catch (RemoteException ex) {
632            // This shouldn't happen in the normal case, as a backup we
633            // read from the system property.
634            return getPhoneTypeFromProperty();
635        } catch (NullPointerException ex) {
636            // This shouldn't happen in the normal case, as a backup we
637            // read from the system property.
638            return getPhoneTypeFromProperty();
639        }
640    }
641
642    /**
643     * Returns a constant indicating the device phone type.  This
644     * indicates the type of radio used to transmit voice calls.
645     *
646     * @see #PHONE_TYPE_NONE
647     * @see #PHONE_TYPE_GSM
648     * @see #PHONE_TYPE_CDMA
649     * @see #PHONE_TYPE_SIP
650     */
651    public int getPhoneType() {
652        if (!isVoiceCapable()) {
653            return PHONE_TYPE_NONE;
654        }
655        return getCurrentPhoneType();
656    }
657
658    private int getPhoneTypeFromProperty() {
659        int type =
660            SystemProperties.getInt(TelephonyProperties.CURRENT_ACTIVE_PHONE,
661                    getPhoneTypeFromNetworkType());
662        return type;
663    }
664
665    private int getPhoneTypeFromNetworkType() {
666        // When the system property CURRENT_ACTIVE_PHONE, has not been set,
667        // use the system property for default network type.
668        // This is a fail safe, and can only happen at first boot.
669        int mode = SystemProperties.getInt("ro.telephony.default_network", -1);
670        if (mode == -1)
671            return PHONE_TYPE_NONE;
672        return getPhoneType(mode);
673    }
674
675    /**
676     * This function returns the type of the phone, depending
677     * on the network mode.
678     *
679     * @param networkMode
680     * @return Phone Type
681     *
682     * @hide
683     */
684    public static int getPhoneType(int networkMode) {
685        switch(networkMode) {
686        case RILConstants.NETWORK_MODE_CDMA:
687        case RILConstants.NETWORK_MODE_CDMA_NO_EVDO:
688        case RILConstants.NETWORK_MODE_EVDO_NO_CDMA:
689            return PhoneConstants.PHONE_TYPE_CDMA;
690
691        case RILConstants.NETWORK_MODE_WCDMA_PREF:
692        case RILConstants.NETWORK_MODE_GSM_ONLY:
693        case RILConstants.NETWORK_MODE_WCDMA_ONLY:
694        case RILConstants.NETWORK_MODE_GSM_UMTS:
695        case RILConstants.NETWORK_MODE_LTE_GSM_WCDMA:
696        case RILConstants.NETWORK_MODE_LTE_WCDMA:
697        case RILConstants.NETWORK_MODE_LTE_CMDA_EVDO_GSM_WCDMA:
698            return PhoneConstants.PHONE_TYPE_GSM;
699
700        // Use CDMA Phone for the global mode including CDMA
701        case RILConstants.NETWORK_MODE_GLOBAL:
702        case RILConstants.NETWORK_MODE_LTE_CDMA_EVDO:
703            return PhoneConstants.PHONE_TYPE_CDMA;
704
705        case RILConstants.NETWORK_MODE_LTE_ONLY:
706            if (getLteOnCdmaModeStatic() == PhoneConstants.LTE_ON_CDMA_TRUE) {
707                return PhoneConstants.PHONE_TYPE_CDMA;
708            } else {
709                return PhoneConstants.PHONE_TYPE_GSM;
710            }
711        default:
712            return PhoneConstants.PHONE_TYPE_GSM;
713        }
714    }
715
716    /**
717     * The contents of the /proc/cmdline file
718     */
719    private static String getProcCmdLine()
720    {
721        String cmdline = "";
722        FileInputStream is = null;
723        try {
724            is = new FileInputStream("/proc/cmdline");
725            byte [] buffer = new byte[2048];
726            int count = is.read(buffer);
727            if (count > 0) {
728                cmdline = new String(buffer, 0, count);
729            }
730        } catch (IOException e) {
731            Rlog.d(TAG, "No /proc/cmdline exception=" + e);
732        } finally {
733            if (is != null) {
734                try {
735                    is.close();
736                } catch (IOException e) {
737                }
738            }
739        }
740        Rlog.d(TAG, "/proc/cmdline=" + cmdline);
741        return cmdline;
742    }
743
744    /** Kernel command line */
745    private static final String sKernelCmdLine = getProcCmdLine();
746
747    /** Pattern for selecting the product type from the kernel command line */
748    private static final Pattern sProductTypePattern =
749        Pattern.compile("\\sproduct_type\\s*=\\s*(\\w+)");
750
751    /** The ProductType used for LTE on CDMA devices */
752    private static final String sLteOnCdmaProductType =
753        SystemProperties.get(TelephonyProperties.PROPERTY_LTE_ON_CDMA_PRODUCT_TYPE, "");
754
755    /**
756     * Return if the current radio is LTE on CDMA. This
757     * is a tri-state return value as for a period of time
758     * the mode may be unknown.
759     *
760     * @return {@link PhoneConstants#LTE_ON_CDMA_UNKNOWN}, {@link PhoneConstants#LTE_ON_CDMA_FALSE}
761     * or {@link PhoneConstants#LTE_ON_CDMA_TRUE}
762     *
763     * @hide
764     */
765    public static int getLteOnCdmaModeStatic() {
766        int retVal;
767        int curVal;
768        String productType = "";
769
770        curVal = SystemProperties.getInt(TelephonyProperties.PROPERTY_LTE_ON_CDMA_DEVICE,
771                    PhoneConstants.LTE_ON_CDMA_UNKNOWN);
772        retVal = curVal;
773        if (retVal == PhoneConstants.LTE_ON_CDMA_UNKNOWN) {
774            Matcher matcher = sProductTypePattern.matcher(sKernelCmdLine);
775            if (matcher.find()) {
776                productType = matcher.group(1);
777                if (sLteOnCdmaProductType.equals(productType)) {
778                    retVal = PhoneConstants.LTE_ON_CDMA_TRUE;
779                } else {
780                    retVal = PhoneConstants.LTE_ON_CDMA_FALSE;
781                }
782            } else {
783                retVal = PhoneConstants.LTE_ON_CDMA_FALSE;
784            }
785        }
786
787        Rlog.d(TAG, "getLteOnCdmaMode=" + retVal + " curVal=" + curVal +
788                " product_type='" + productType +
789                "' lteOnCdmaProductType='" + sLteOnCdmaProductType + "'");
790        return retVal;
791    }
792
793    //
794    //
795    // Current Network
796    //
797    //
798
799    /**
800     * Returns the alphabetic name of current registered operator.
801     * <p>
802     * Availability: Only when user is registered to a network. Result may be
803     * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if
804     * on a CDMA network).
805     */
806    public String getNetworkOperatorName() {
807        return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ALPHA);
808    }
809
810    /**
811     * Returns the numeric name (MCC+MNC) of current registered operator.
812     * <p>
813     * Availability: Only when user is registered to a network. Result may be
814     * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if
815     * on a CDMA network).
816     */
817    public String getNetworkOperator() {
818        return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_NUMERIC);
819    }
820
821    /**
822     * Returns true if the device is considered roaming on the current
823     * network, for GSM purposes.
824     * <p>
825     * Availability: Only when user registered to a network.
826     */
827    public boolean isNetworkRoaming() {
828        return "true".equals(SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ISROAMING));
829    }
830
831    /**
832     * Returns the ISO country code equivalent of the current registered
833     * operator's MCC (Mobile Country Code).
834     * <p>
835     * Availability: Only when user is registered to a network. Result may be
836     * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if
837     * on a CDMA network).
838     */
839    public String getNetworkCountryIso() {
840        return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ISO_COUNTRY);
841    }
842
843    /** Network type is unknown */
844    public static final int NETWORK_TYPE_UNKNOWN = 0;
845    /** Current network is GPRS */
846    public static final int NETWORK_TYPE_GPRS = 1;
847    /** Current network is EDGE */
848    public static final int NETWORK_TYPE_EDGE = 2;
849    /** Current network is UMTS */
850    public static final int NETWORK_TYPE_UMTS = 3;
851    /** Current network is CDMA: Either IS95A or IS95B*/
852    public static final int NETWORK_TYPE_CDMA = 4;
853    /** Current network is EVDO revision 0*/
854    public static final int NETWORK_TYPE_EVDO_0 = 5;
855    /** Current network is EVDO revision A*/
856    public static final int NETWORK_TYPE_EVDO_A = 6;
857    /** Current network is 1xRTT*/
858    public static final int NETWORK_TYPE_1xRTT = 7;
859    /** Current network is HSDPA */
860    public static final int NETWORK_TYPE_HSDPA = 8;
861    /** Current network is HSUPA */
862    public static final int NETWORK_TYPE_HSUPA = 9;
863    /** Current network is HSPA */
864    public static final int NETWORK_TYPE_HSPA = 10;
865    /** Current network is iDen */
866    public static final int NETWORK_TYPE_IDEN = 11;
867    /** Current network is EVDO revision B*/
868    public static final int NETWORK_TYPE_EVDO_B = 12;
869    /** Current network is LTE */
870    public static final int NETWORK_TYPE_LTE = 13;
871    /** Current network is eHRPD */
872    public static final int NETWORK_TYPE_EHRPD = 14;
873    /** Current network is HSPA+ */
874    public static final int NETWORK_TYPE_HSPAP = 15;
875
876    /**
877     * @return the NETWORK_TYPE_xxxx for current data connection.
878     */
879    public int getNetworkType() {
880        return getDataNetworkType();
881    }
882
883    /**
884     * Returns a constant indicating the radio technology (network type)
885     * currently in use on the device for data transmission.
886     * @return the network type
887     *
888     * @see #NETWORK_TYPE_UNKNOWN
889     * @see #NETWORK_TYPE_GPRS
890     * @see #NETWORK_TYPE_EDGE
891     * @see #NETWORK_TYPE_UMTS
892     * @see #NETWORK_TYPE_HSDPA
893     * @see #NETWORK_TYPE_HSUPA
894     * @see #NETWORK_TYPE_HSPA
895     * @see #NETWORK_TYPE_CDMA
896     * @see #NETWORK_TYPE_EVDO_0
897     * @see #NETWORK_TYPE_EVDO_A
898     * @see #NETWORK_TYPE_EVDO_B
899     * @see #NETWORK_TYPE_1xRTT
900     * @see #NETWORK_TYPE_IDEN
901     * @see #NETWORK_TYPE_LTE
902     * @see #NETWORK_TYPE_EHRPD
903     * @see #NETWORK_TYPE_HSPAP
904     *
905     * @hide
906     */
907    public int getDataNetworkType() {
908        try{
909            ITelephony telephony = getITelephony();
910            if (telephony != null) {
911                return telephony.getDataNetworkType();
912            } else {
913                // This can happen when the ITelephony interface is not up yet.
914                return NETWORK_TYPE_UNKNOWN;
915            }
916        } catch(RemoteException ex) {
917            // This shouldn't happen in the normal case
918            return NETWORK_TYPE_UNKNOWN;
919        } catch (NullPointerException ex) {
920            // This could happen before phone restarts due to crashing
921            return NETWORK_TYPE_UNKNOWN;
922        }
923    }
924
925    /**
926     * Returns the NETWORK_TYPE_xxxx for voice
927     *
928     * @hide
929     */
930    public int getVoiceNetworkType() {
931        try{
932            ITelephony telephony = getITelephony();
933            if (telephony != null) {
934                return telephony.getVoiceNetworkType();
935            } else {
936                // This can happen when the ITelephony interface is not up yet.
937                return NETWORK_TYPE_UNKNOWN;
938            }
939        } catch(RemoteException ex) {
940            // This shouldn't happen in the normal case
941            return NETWORK_TYPE_UNKNOWN;
942        } catch (NullPointerException ex) {
943            // This could happen before phone restarts due to crashing
944            return NETWORK_TYPE_UNKNOWN;
945        }
946    }
947
948    /** Unknown network class. {@hide} */
949    public static final int NETWORK_CLASS_UNKNOWN = 0;
950    /** Class of broadly defined "2G" networks. {@hide} */
951    public static final int NETWORK_CLASS_2_G = 1;
952    /** Class of broadly defined "3G" networks. {@hide} */
953    public static final int NETWORK_CLASS_3_G = 2;
954    /** Class of broadly defined "4G" networks. {@hide} */
955    public static final int NETWORK_CLASS_4_G = 3;
956
957    /**
958     * Return general class of network type, such as "3G" or "4G". In cases
959     * where classification is contentious, this method is conservative.
960     *
961     * @hide
962     */
963    public static int getNetworkClass(int networkType) {
964        switch (networkType) {
965            case NETWORK_TYPE_GPRS:
966            case NETWORK_TYPE_EDGE:
967            case NETWORK_TYPE_CDMA:
968            case NETWORK_TYPE_1xRTT:
969            case NETWORK_TYPE_IDEN:
970                return NETWORK_CLASS_2_G;
971            case NETWORK_TYPE_UMTS:
972            case NETWORK_TYPE_EVDO_0:
973            case NETWORK_TYPE_EVDO_A:
974            case NETWORK_TYPE_HSDPA:
975            case NETWORK_TYPE_HSUPA:
976            case NETWORK_TYPE_HSPA:
977            case NETWORK_TYPE_EVDO_B:
978            case NETWORK_TYPE_EHRPD:
979            case NETWORK_TYPE_HSPAP:
980                return NETWORK_CLASS_3_G;
981            case NETWORK_TYPE_LTE:
982                return NETWORK_CLASS_4_G;
983            default:
984                return NETWORK_CLASS_UNKNOWN;
985        }
986    }
987
988    /**
989     * Returns a string representation of the radio technology (network type)
990     * currently in use on the device.
991     * @return the name of the radio technology
992     *
993     * @hide pending API council review
994     */
995    public String getNetworkTypeName() {
996        return getNetworkTypeName(getNetworkType());
997    }
998
999    /** {@hide} */
1000    public static String getNetworkTypeName(int type) {
1001        switch (type) {
1002            case NETWORK_TYPE_GPRS:
1003                return "GPRS";
1004            case NETWORK_TYPE_EDGE:
1005                return "EDGE";
1006            case NETWORK_TYPE_UMTS:
1007                return "UMTS";
1008            case NETWORK_TYPE_HSDPA:
1009                return "HSDPA";
1010            case NETWORK_TYPE_HSUPA:
1011                return "HSUPA";
1012            case NETWORK_TYPE_HSPA:
1013                return "HSPA";
1014            case NETWORK_TYPE_CDMA:
1015                return "CDMA";
1016            case NETWORK_TYPE_EVDO_0:
1017                return "CDMA - EvDo rev. 0";
1018            case NETWORK_TYPE_EVDO_A:
1019                return "CDMA - EvDo rev. A";
1020            case NETWORK_TYPE_EVDO_B:
1021                return "CDMA - EvDo rev. B";
1022            case NETWORK_TYPE_1xRTT:
1023                return "CDMA - 1xRTT";
1024            case NETWORK_TYPE_LTE:
1025                return "LTE";
1026            case NETWORK_TYPE_EHRPD:
1027                return "CDMA - eHRPD";
1028            case NETWORK_TYPE_IDEN:
1029                return "iDEN";
1030            case NETWORK_TYPE_HSPAP:
1031                return "HSPA+";
1032            default:
1033                return "UNKNOWN";
1034        }
1035    }
1036
1037    //
1038    //
1039    // SIM Card
1040    //
1041    //
1042
1043    /** SIM card state: Unknown. Signifies that the SIM is in transition
1044     *  between states. For example, when the user inputs the SIM pin
1045     *  under PIN_REQUIRED state, a query for sim status returns
1046     *  this state before turning to SIM_STATE_READY. */
1047    public static final int SIM_STATE_UNKNOWN = 0;
1048    /** SIM card state: no SIM card is available in the device */
1049    public static final int SIM_STATE_ABSENT = 1;
1050    /** SIM card state: Locked: requires the user's SIM PIN to unlock */
1051    public static final int SIM_STATE_PIN_REQUIRED = 2;
1052    /** SIM card state: Locked: requires the user's SIM PUK to unlock */
1053    public static final int SIM_STATE_PUK_REQUIRED = 3;
1054    /** SIM card state: Locked: requries a network PIN to unlock */
1055    public static final int SIM_STATE_NETWORK_LOCKED = 4;
1056    /** SIM card state: Ready */
1057    public static final int SIM_STATE_READY = 5;
1058
1059    /**
1060     * @return true if a ICC card is present
1061     */
1062    public boolean hasIccCard() {
1063        try {
1064            return getITelephony().hasIccCard();
1065        } catch (RemoteException ex) {
1066            // Assume no ICC card if remote exception which shouldn't happen
1067            return false;
1068        } catch (NullPointerException ex) {
1069            // This could happen before phone restarts due to crashing
1070            return false;
1071        }
1072    }
1073
1074    /**
1075     * Returns a constant indicating the state of the
1076     * device SIM card.
1077     *
1078     * @see #SIM_STATE_UNKNOWN
1079     * @see #SIM_STATE_ABSENT
1080     * @see #SIM_STATE_PIN_REQUIRED
1081     * @see #SIM_STATE_PUK_REQUIRED
1082     * @see #SIM_STATE_NETWORK_LOCKED
1083     * @see #SIM_STATE_READY
1084     */
1085    public int getSimState() {
1086        String prop = SystemProperties.get(TelephonyProperties.PROPERTY_SIM_STATE);
1087        if ("ABSENT".equals(prop)) {
1088            return SIM_STATE_ABSENT;
1089        }
1090        else if ("PIN_REQUIRED".equals(prop)) {
1091            return SIM_STATE_PIN_REQUIRED;
1092        }
1093        else if ("PUK_REQUIRED".equals(prop)) {
1094            return SIM_STATE_PUK_REQUIRED;
1095        }
1096        else if ("NETWORK_LOCKED".equals(prop)) {
1097            return SIM_STATE_NETWORK_LOCKED;
1098        }
1099        else if ("READY".equals(prop)) {
1100            return SIM_STATE_READY;
1101        }
1102        else {
1103            return SIM_STATE_UNKNOWN;
1104        }
1105    }
1106
1107    /**
1108     * Returns the MCC+MNC (mobile country code + mobile network code) of the
1109     * provider of the SIM. 5 or 6 decimal digits.
1110     * <p>
1111     * Availability: SIM state must be {@link #SIM_STATE_READY}
1112     *
1113     * @see #getSimState
1114     */
1115    public String getSimOperator() {
1116        return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_NUMERIC);
1117    }
1118
1119    /**
1120     * Returns the Service Provider Name (SPN).
1121     * <p>
1122     * Availability: SIM state must be {@link #SIM_STATE_READY}
1123     *
1124     * @see #getSimState
1125     */
1126    public String getSimOperatorName() {
1127        return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ALPHA);
1128    }
1129
1130    /**
1131     * Returns the ISO country code equivalent for the SIM provider's country code.
1132     */
1133    public String getSimCountryIso() {
1134        return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ISO_COUNTRY);
1135    }
1136
1137    /**
1138     * Returns the serial number of the SIM, if applicable. Return null if it is
1139     * unavailable.
1140     * <p>
1141     * Requires Permission:
1142     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1143     */
1144    public String getSimSerialNumber() {
1145        try {
1146            return getSubscriberInfo().getIccSerialNumber();
1147        } catch (RemoteException ex) {
1148            return null;
1149        } catch (NullPointerException ex) {
1150            // This could happen before phone restarts due to crashing
1151            return null;
1152        }
1153    }
1154
1155    /**
1156     * Return if the current radio is LTE on CDMA. This
1157     * is a tri-state return value as for a period of time
1158     * the mode may be unknown.
1159     *
1160     * @return {@link PhoneConstants#LTE_ON_CDMA_UNKNOWN}, {@link PhoneConstants#LTE_ON_CDMA_FALSE}
1161     * or {@link PhoneConstants#LTE_ON_CDMA_TRUE}
1162     *
1163     * @hide
1164     */
1165    public int getLteOnCdmaMode() {
1166        try {
1167            return getITelephony().getLteOnCdmaMode();
1168        } catch (RemoteException ex) {
1169            // Assume no ICC card if remote exception which shouldn't happen
1170            return PhoneConstants.LTE_ON_CDMA_UNKNOWN;
1171        } catch (NullPointerException ex) {
1172            // This could happen before phone restarts due to crashing
1173            return PhoneConstants.LTE_ON_CDMA_UNKNOWN;
1174        }
1175    }
1176
1177    //
1178    //
1179    // Subscriber Info
1180    //
1181    //
1182
1183    /**
1184     * Returns the unique subscriber ID, for example, the IMSI for a GSM phone.
1185     * Return null if it is unavailable.
1186     * <p>
1187     * Requires Permission:
1188     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1189     */
1190    public String getSubscriberId() {
1191        try {
1192            return getSubscriberInfo().getSubscriberId();
1193        } catch (RemoteException ex) {
1194            return null;
1195        } catch (NullPointerException ex) {
1196            // This could happen before phone restarts due to crashing
1197            return null;
1198        }
1199    }
1200
1201    /**
1202     * Returns the Group Identifier Level1 for a GSM phone.
1203     * Return null if it is unavailable.
1204     * <p>
1205     * Requires Permission:
1206     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1207     */
1208    public String getGroupIdLevel1() {
1209        try {
1210            return getSubscriberInfo().getGroupIdLevel1();
1211        } catch (RemoteException ex) {
1212            return null;
1213        } catch (NullPointerException ex) {
1214            // This could happen before phone restarts due to crashing
1215            return null;
1216        }
1217    }
1218
1219    /**
1220     * Returns the phone number string for line 1, for example, the MSISDN
1221     * for a GSM phone. Return null if it is unavailable.
1222     * <p>
1223     * Requires Permission:
1224     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1225     */
1226    public String getLine1Number() {
1227        try {
1228            return getSubscriberInfo().getLine1Number();
1229        } catch (RemoteException ex) {
1230            return null;
1231        } catch (NullPointerException ex) {
1232            // This could happen before phone restarts due to crashing
1233            return null;
1234        }
1235    }
1236
1237    /**
1238     * Returns the alphabetic identifier associated with the line 1 number.
1239     * Return null if it is unavailable.
1240     * <p>
1241     * Requires Permission:
1242     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1243     * @hide
1244     * nobody seems to call this.
1245     */
1246    public String getLine1AlphaTag() {
1247        try {
1248            return getSubscriberInfo().getLine1AlphaTag();
1249        } catch (RemoteException ex) {
1250            return null;
1251        } catch (NullPointerException ex) {
1252            // This could happen before phone restarts due to crashing
1253            return null;
1254        }
1255    }
1256
1257    /**
1258     * Returns the MSISDN string.
1259     * for a GSM phone. Return null if it is unavailable.
1260     * <p>
1261     * Requires Permission:
1262     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1263     *
1264     * @hide
1265     */
1266    public String getMsisdn() {
1267        try {
1268            return getSubscriberInfo().getMsisdn();
1269        } catch (RemoteException ex) {
1270            return null;
1271        } catch (NullPointerException ex) {
1272            // This could happen before phone restarts due to crashing
1273            return null;
1274        }
1275    }
1276
1277    /**
1278     * Returns the voice mail number. Return null if it is unavailable.
1279     * <p>
1280     * Requires Permission:
1281     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1282     */
1283    public String getVoiceMailNumber() {
1284        try {
1285            return getSubscriberInfo().getVoiceMailNumber();
1286        } catch (RemoteException ex) {
1287            return null;
1288        } catch (NullPointerException ex) {
1289            // This could happen before phone restarts due to crashing
1290            return null;
1291        }
1292    }
1293
1294    /**
1295     * Returns the complete voice mail number. Return null if it is unavailable.
1296     * <p>
1297     * Requires Permission:
1298     *   {@link android.Manifest.permission#CALL_PRIVILEGED CALL_PRIVILEGED}
1299     *
1300     * @hide
1301     */
1302    public String getCompleteVoiceMailNumber() {
1303        try {
1304            return getSubscriberInfo().getCompleteVoiceMailNumber();
1305        } catch (RemoteException ex) {
1306            return null;
1307        } catch (NullPointerException ex) {
1308            // This could happen before phone restarts due to crashing
1309            return null;
1310        }
1311    }
1312
1313    /**
1314     * Returns the voice mail count. Return 0 if unavailable.
1315     * <p>
1316     * Requires Permission:
1317     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1318     * @hide
1319     */
1320    public int getVoiceMessageCount() {
1321        try {
1322            return getITelephony().getVoiceMessageCount();
1323        } catch (RemoteException ex) {
1324            return 0;
1325        } catch (NullPointerException ex) {
1326            // This could happen before phone restarts due to crashing
1327            return 0;
1328        }
1329    }
1330
1331    /**
1332     * Retrieves the alphabetic identifier associated with the voice
1333     * mail number.
1334     * <p>
1335     * Requires Permission:
1336     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1337     */
1338    public String getVoiceMailAlphaTag() {
1339        try {
1340            return getSubscriberInfo().getVoiceMailAlphaTag();
1341        } catch (RemoteException ex) {
1342            return null;
1343        } catch (NullPointerException ex) {
1344            // This could happen before phone restarts due to crashing
1345            return null;
1346        }
1347    }
1348
1349    /**
1350     * Returns the IMS private user identity (IMPI) that was loaded from the ISIM.
1351     * @return the IMPI, or null if not present or not loaded
1352     * @hide
1353     */
1354    public String getIsimImpi() {
1355        try {
1356            return getSubscriberInfo().getIsimImpi();
1357        } catch (RemoteException ex) {
1358            return null;
1359        } catch (NullPointerException ex) {
1360            // This could happen before phone restarts due to crashing
1361            return null;
1362        }
1363    }
1364
1365    /**
1366     * Returns the IMS home network domain name that was loaded from the ISIM.
1367     * @return the IMS domain name, or null if not present or not loaded
1368     * @hide
1369     */
1370    public String getIsimDomain() {
1371        try {
1372            return getSubscriberInfo().getIsimDomain();
1373        } catch (RemoteException ex) {
1374            return null;
1375        } catch (NullPointerException ex) {
1376            // This could happen before phone restarts due to crashing
1377            return null;
1378        }
1379    }
1380
1381    /**
1382     * Returns the IMS public user identities (IMPU) that were loaded from the ISIM.
1383     * @return an array of IMPU strings, with one IMPU per string, or null if
1384     *      not present or not loaded
1385     * @hide
1386     */
1387    public String[] getIsimImpu() {
1388        try {
1389            return getSubscriberInfo().getIsimImpu();
1390        } catch (RemoteException ex) {
1391            return null;
1392        } catch (NullPointerException ex) {
1393            // This could happen before phone restarts due to crashing
1394            return null;
1395        }
1396    }
1397
1398    private IPhoneSubInfo getSubscriberInfo() {
1399        // get it each time because that process crashes a lot
1400        return IPhoneSubInfo.Stub.asInterface(ServiceManager.getService("iphonesubinfo"));
1401    }
1402
1403
1404    /** Device call state: No activity. */
1405    public static final int CALL_STATE_IDLE = 0;
1406    /** Device call state: Ringing. A new call arrived and is
1407     *  ringing or waiting. In the latter case, another call is
1408     *  already active. */
1409    public static final int CALL_STATE_RINGING = 1;
1410    /** Device call state: Off-hook. At least one call exists
1411      * that is dialing, active, or on hold, and no calls are ringing
1412      * or waiting. */
1413    public static final int CALL_STATE_OFFHOOK = 2;
1414
1415    /**
1416     * Returns a constant indicating the call state (cellular) on the device.
1417     */
1418    public int getCallState() {
1419        try {
1420            return getITelephony().getCallState();
1421        } catch (RemoteException ex) {
1422            // the phone process is restarting.
1423            return CALL_STATE_IDLE;
1424        } catch (NullPointerException ex) {
1425          // the phone process is restarting.
1426          return CALL_STATE_IDLE;
1427      }
1428    }
1429
1430    /** Data connection activity: No traffic. */
1431    public static final int DATA_ACTIVITY_NONE = 0x00000000;
1432    /** Data connection activity: Currently receiving IP PPP traffic. */
1433    public static final int DATA_ACTIVITY_IN = 0x00000001;
1434    /** Data connection activity: Currently sending IP PPP traffic. */
1435    public static final int DATA_ACTIVITY_OUT = 0x00000002;
1436    /** Data connection activity: Currently both sending and receiving
1437     *  IP PPP traffic. */
1438    public static final int DATA_ACTIVITY_INOUT = DATA_ACTIVITY_IN | DATA_ACTIVITY_OUT;
1439    /**
1440     * Data connection is active, but physical link is down
1441     */
1442    public static final int DATA_ACTIVITY_DORMANT = 0x00000004;
1443
1444    /**
1445     * Returns a constant indicating the type of activity on a data connection
1446     * (cellular).
1447     *
1448     * @see #DATA_ACTIVITY_NONE
1449     * @see #DATA_ACTIVITY_IN
1450     * @see #DATA_ACTIVITY_OUT
1451     * @see #DATA_ACTIVITY_INOUT
1452     * @see #DATA_ACTIVITY_DORMANT
1453     */
1454    public int getDataActivity() {
1455        try {
1456            return getITelephony().getDataActivity();
1457        } catch (RemoteException ex) {
1458            // the phone process is restarting.
1459            return DATA_ACTIVITY_NONE;
1460        } catch (NullPointerException ex) {
1461          // the phone process is restarting.
1462          return DATA_ACTIVITY_NONE;
1463      }
1464    }
1465
1466    /** Data connection state: Unknown.  Used before we know the state.
1467     * @hide
1468     */
1469    public static final int DATA_UNKNOWN        = -1;
1470    /** Data connection state: Disconnected. IP traffic not available. */
1471    public static final int DATA_DISCONNECTED   = 0;
1472    /** Data connection state: Currently setting up a data connection. */
1473    public static final int DATA_CONNECTING     = 1;
1474    /** Data connection state: Connected. IP traffic should be available. */
1475    public static final int DATA_CONNECTED      = 2;
1476    /** Data connection state: Suspended. The connection is up, but IP
1477     * traffic is temporarily unavailable. For example, in a 2G network,
1478     * data activity may be suspended when a voice call arrives. */
1479    public static final int DATA_SUSPENDED      = 3;
1480
1481    /**
1482     * Returns a constant indicating the current data connection state
1483     * (cellular).
1484     *
1485     * @see #DATA_DISCONNECTED
1486     * @see #DATA_CONNECTING
1487     * @see #DATA_CONNECTED
1488     * @see #DATA_SUSPENDED
1489     */
1490    public int getDataState() {
1491        try {
1492            return getITelephony().getDataState();
1493        } catch (RemoteException ex) {
1494            // the phone process is restarting.
1495            return DATA_DISCONNECTED;
1496        } catch (NullPointerException ex) {
1497            return DATA_DISCONNECTED;
1498        }
1499    }
1500
1501    private ITelephony getITelephony() {
1502        return ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE));
1503    }
1504
1505    //
1506    //
1507    // PhoneStateListener
1508    //
1509    //
1510
1511    /**
1512     * Registers a listener object to receive notification of changes
1513     * in specified telephony states.
1514     * <p>
1515     * To register a listener, pass a {@link PhoneStateListener}
1516     * and specify at least one telephony state of interest in
1517     * the events argument.
1518     *
1519     * At registration, and when a specified telephony state
1520     * changes, the telephony manager invokes the appropriate
1521     * callback method on the listener object and passes the
1522     * current (udpated) values.
1523     * <p>
1524     * To unregister a listener, pass the listener object and set the
1525     * events argument to
1526     * {@link PhoneStateListener#LISTEN_NONE LISTEN_NONE} (0).
1527     *
1528     * @param listener The {@link PhoneStateListener} object to register
1529     *                 (or unregister)
1530     * @param events The telephony state(s) of interest to the listener,
1531     *               as a bitwise-OR combination of {@link PhoneStateListener}
1532     *               LISTEN_ flags.
1533     */
1534    public void listen(PhoneStateListener listener, int events) {
1535        String pkgForDebug = mContext != null ? mContext.getPackageName() : "<unknown>";
1536        try {
1537            Boolean notifyNow = true;
1538            sRegistry.listen(pkgForDebug, listener.callback, events, notifyNow);
1539        } catch (RemoteException ex) {
1540            // system process dead
1541        } catch (NullPointerException ex) {
1542            // system process dead
1543        }
1544    }
1545
1546    /**
1547     * Returns the CDMA ERI icon index to display
1548     *
1549     * @hide
1550     */
1551    public int getCdmaEriIconIndex() {
1552        try {
1553            return getITelephony().getCdmaEriIconIndex();
1554        } catch (RemoteException ex) {
1555            // the phone process is restarting.
1556            return -1;
1557        } catch (NullPointerException ex) {
1558            return -1;
1559        }
1560    }
1561
1562    /**
1563     * Returns the CDMA ERI icon mode,
1564     * 0 - ON
1565     * 1 - FLASHING
1566     *
1567     * @hide
1568     */
1569    public int getCdmaEriIconMode() {
1570        try {
1571            return getITelephony().getCdmaEriIconMode();
1572        } catch (RemoteException ex) {
1573            // the phone process is restarting.
1574            return -1;
1575        } catch (NullPointerException ex) {
1576            return -1;
1577        }
1578    }
1579
1580    /**
1581     * Returns the CDMA ERI text,
1582     *
1583     * @hide
1584     */
1585    public String getCdmaEriText() {
1586        try {
1587            return getITelephony().getCdmaEriText();
1588        } catch (RemoteException ex) {
1589            // the phone process is restarting.
1590            return null;
1591        } catch (NullPointerException ex) {
1592            return null;
1593        }
1594    }
1595
1596    /**
1597     * @return true if the current device is "voice capable".
1598     * <p>
1599     * "Voice capable" means that this device supports circuit-switched
1600     * (i.e. voice) phone calls over the telephony network, and is allowed
1601     * to display the in-call UI while a cellular voice call is active.
1602     * This will be false on "data only" devices which can't make voice
1603     * calls and don't support any in-call UI.
1604     * <p>
1605     * Note: the meaning of this flag is subtly different from the
1606     * PackageManager.FEATURE_TELEPHONY system feature, which is available
1607     * on any device with a telephony radio, even if the device is
1608     * data-only.
1609     *
1610     * @hide pending API review
1611     */
1612    public boolean isVoiceCapable() {
1613        if (mContext == null) return true;
1614        return mContext.getResources().getBoolean(
1615                com.android.internal.R.bool.config_voice_capable);
1616    }
1617
1618    /**
1619     * @return true if the current device supports sms service.
1620     * <p>
1621     * If true, this means that the device supports both sending and
1622     * receiving sms via the telephony network.
1623     * <p>
1624     * Note: Voicemail waiting sms, cell broadcasting sms, and MMS are
1625     *       disabled when device doesn't support sms.
1626     *
1627     * @hide pending API review
1628     */
1629    public boolean isSmsCapable() {
1630        if (mContext == null) return true;
1631        return mContext.getResources().getBoolean(
1632                com.android.internal.R.bool.config_sms_capable);
1633    }
1634
1635    /**
1636     * Returns all observed cell information from all radios on the
1637     * device including the primary and neighboring cells. This does
1638     * not cause or change the rate of PhoneStateListner#onCellInfoChanged.
1639     *<p>
1640     * The list can include one or more of {@link android.telephony.CellInfoGsm CellInfoGsm},
1641     * {@link android.telephony.CellInfoCdma CellInfoCdma},
1642     * {@link android.telephony.CellInfoLte CellInfoLte} and
1643     * {@link android.telephony.CellInfoWcdma CellInfoCdma} in any combination.
1644     * Specifically on devices with multiple radios it is typical to see instances of
1645     * one or more of any these in the list. In addition 0, 1 or more CellInfo
1646     * objects may return isRegistered() true.
1647     *<p>
1648     * This is preferred over using getCellLocation although for older
1649     * devices this may return null in which case getCellLocation should
1650     * be called.
1651     *<p>
1652     * @return List of CellInfo or null if info unavailable.
1653     *
1654     * <p>Requires Permission: {@link android.Manifest.permission#ACCESS_COARSE_LOCATION}
1655     */
1656    public List<CellInfo> getAllCellInfo() {
1657        try {
1658            return getITelephony().getAllCellInfo();
1659        } catch (RemoteException ex) {
1660            return null;
1661        } catch (NullPointerException ex) {
1662            return null;
1663        }
1664    }
1665
1666    /**
1667     * Sets the minimum time in milli-seconds between {@link PhoneStateListener#onCellInfoChanged
1668     * PhoneStateListener.onCellInfoChanged} will be invoked.
1669     *<p>
1670     * The default, 0, means invoke onCellInfoChanged when any of the reported
1671     * information changes. Setting the value to INT_MAX(0x7fffffff) means never issue
1672     * A onCellInfoChanged.
1673     *<p>
1674     * @param rateInMillis the rate
1675     *
1676     * @hide
1677     */
1678    public void setCellInfoListRate(int rateInMillis) {
1679        try {
1680            getITelephony().setCellInfoListRate(rateInMillis);
1681        } catch (RemoteException ex) {
1682        } catch (NullPointerException ex) {
1683        }
1684    }
1685
1686    /**
1687     * Returns the MMS user agent.
1688     */
1689    public String getMmsUserAgent() {
1690        if (mContext == null) return null;
1691        return mContext.getResources().getString(
1692                com.android.internal.R.string.config_mms_user_agent);
1693    }
1694
1695    /**
1696     * Returns the MMS user agent profile URL.
1697     */
1698    public String getMmsUAProfUrl() {
1699        if (mContext == null) return null;
1700        return mContext.getResources().getString(
1701                com.android.internal.R.string.config_mms_user_agent_profile_url);
1702    }
1703}
1704