TelephonyManager.java revision 10731a6140ad9e1be895406206ced1db7b6d85cd
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    /** Current network is GSM {@hide} */
876    public static final int NETWORK_TYPE_GSM = 16;
877
878    /**
879     * @return the NETWORK_TYPE_xxxx for current data connection.
880     */
881    public int getNetworkType() {
882        return getDataNetworkType();
883    }
884
885    /**
886     * Returns a constant indicating the radio technology (network type)
887     * currently in use on the device for data transmission.
888     * @return the network type
889     *
890     * @see #NETWORK_TYPE_UNKNOWN
891     * @see #NETWORK_TYPE_GPRS
892     * @see #NETWORK_TYPE_EDGE
893     * @see #NETWORK_TYPE_UMTS
894     * @see #NETWORK_TYPE_HSDPA
895     * @see #NETWORK_TYPE_HSUPA
896     * @see #NETWORK_TYPE_HSPA
897     * @see #NETWORK_TYPE_CDMA
898     * @see #NETWORK_TYPE_EVDO_0
899     * @see #NETWORK_TYPE_EVDO_A
900     * @see #NETWORK_TYPE_EVDO_B
901     * @see #NETWORK_TYPE_1xRTT
902     * @see #NETWORK_TYPE_IDEN
903     * @see #NETWORK_TYPE_LTE
904     * @see #NETWORK_TYPE_EHRPD
905     * @see #NETWORK_TYPE_HSPAP
906     *
907     * @hide
908     */
909    public int getDataNetworkType() {
910        try{
911            ITelephony telephony = getITelephony();
912            if (telephony != null) {
913                return telephony.getDataNetworkType();
914            } else {
915                // This can happen when the ITelephony interface is not up yet.
916                return NETWORK_TYPE_UNKNOWN;
917            }
918        } catch(RemoteException ex) {
919            // This shouldn't happen in the normal case
920            return NETWORK_TYPE_UNKNOWN;
921        } catch (NullPointerException ex) {
922            // This could happen before phone restarts due to crashing
923            return NETWORK_TYPE_UNKNOWN;
924        }
925    }
926
927    /**
928     * Returns the NETWORK_TYPE_xxxx for voice
929     *
930     * @hide
931     */
932    public int getVoiceNetworkType() {
933        try{
934            ITelephony telephony = getITelephony();
935            if (telephony != null) {
936                return telephony.getVoiceNetworkType();
937            } else {
938                // This can happen when the ITelephony interface is not up yet.
939                return NETWORK_TYPE_UNKNOWN;
940            }
941        } catch(RemoteException ex) {
942            // This shouldn't happen in the normal case
943            return NETWORK_TYPE_UNKNOWN;
944        } catch (NullPointerException ex) {
945            // This could happen before phone restarts due to crashing
946            return NETWORK_TYPE_UNKNOWN;
947        }
948    }
949
950    /** Unknown network class. {@hide} */
951    public static final int NETWORK_CLASS_UNKNOWN = 0;
952    /** Class of broadly defined "2G" networks. {@hide} */
953    public static final int NETWORK_CLASS_2_G = 1;
954    /** Class of broadly defined "3G" networks. {@hide} */
955    public static final int NETWORK_CLASS_3_G = 2;
956    /** Class of broadly defined "4G" networks. {@hide} */
957    public static final int NETWORK_CLASS_4_G = 3;
958
959    /**
960     * Return general class of network type, such as "3G" or "4G". In cases
961     * where classification is contentious, this method is conservative.
962     *
963     * @hide
964     */
965    public static int getNetworkClass(int networkType) {
966        switch (networkType) {
967            case NETWORK_TYPE_GPRS:
968            case NETWORK_TYPE_GSM:
969            case NETWORK_TYPE_EDGE:
970            case NETWORK_TYPE_CDMA:
971            case NETWORK_TYPE_1xRTT:
972            case NETWORK_TYPE_IDEN:
973                return NETWORK_CLASS_2_G;
974            case NETWORK_TYPE_UMTS:
975            case NETWORK_TYPE_EVDO_0:
976            case NETWORK_TYPE_EVDO_A:
977            case NETWORK_TYPE_HSDPA:
978            case NETWORK_TYPE_HSUPA:
979            case NETWORK_TYPE_HSPA:
980            case NETWORK_TYPE_EVDO_B:
981            case NETWORK_TYPE_EHRPD:
982            case NETWORK_TYPE_HSPAP:
983                return NETWORK_CLASS_3_G;
984            case NETWORK_TYPE_LTE:
985                return NETWORK_CLASS_4_G;
986            default:
987                return NETWORK_CLASS_UNKNOWN;
988        }
989    }
990
991    /**
992     * Returns a string representation of the radio technology (network type)
993     * currently in use on the device.
994     * @return the name of the radio technology
995     *
996     * @hide pending API council review
997     */
998    public String getNetworkTypeName() {
999        return getNetworkTypeName(getNetworkType());
1000    }
1001
1002    /** {@hide} */
1003    public static String getNetworkTypeName(int type) {
1004        switch (type) {
1005            case NETWORK_TYPE_GPRS:
1006                return "GPRS";
1007            case NETWORK_TYPE_EDGE:
1008                return "EDGE";
1009            case NETWORK_TYPE_UMTS:
1010                return "UMTS";
1011            case NETWORK_TYPE_HSDPA:
1012                return "HSDPA";
1013            case NETWORK_TYPE_HSUPA:
1014                return "HSUPA";
1015            case NETWORK_TYPE_HSPA:
1016                return "HSPA";
1017            case NETWORK_TYPE_CDMA:
1018                return "CDMA";
1019            case NETWORK_TYPE_EVDO_0:
1020                return "CDMA - EvDo rev. 0";
1021            case NETWORK_TYPE_EVDO_A:
1022                return "CDMA - EvDo rev. A";
1023            case NETWORK_TYPE_EVDO_B:
1024                return "CDMA - EvDo rev. B";
1025            case NETWORK_TYPE_1xRTT:
1026                return "CDMA - 1xRTT";
1027            case NETWORK_TYPE_LTE:
1028                return "LTE";
1029            case NETWORK_TYPE_EHRPD:
1030                return "CDMA - eHRPD";
1031            case NETWORK_TYPE_IDEN:
1032                return "iDEN";
1033            case NETWORK_TYPE_HSPAP:
1034                return "HSPA+";
1035            case NETWORK_TYPE_GSM:
1036                return "GSM";
1037            default:
1038                return "UNKNOWN";
1039        }
1040    }
1041
1042    //
1043    //
1044    // SIM Card
1045    //
1046    //
1047
1048    /** SIM card state: Unknown. Signifies that the SIM is in transition
1049     *  between states. For example, when the user inputs the SIM pin
1050     *  under PIN_REQUIRED state, a query for sim status returns
1051     *  this state before turning to SIM_STATE_READY. */
1052    public static final int SIM_STATE_UNKNOWN = 0;
1053    /** SIM card state: no SIM card is available in the device */
1054    public static final int SIM_STATE_ABSENT = 1;
1055    /** SIM card state: Locked: requires the user's SIM PIN to unlock */
1056    public static final int SIM_STATE_PIN_REQUIRED = 2;
1057    /** SIM card state: Locked: requires the user's SIM PUK to unlock */
1058    public static final int SIM_STATE_PUK_REQUIRED = 3;
1059    /** SIM card state: Locked: requries a network PIN to unlock */
1060    public static final int SIM_STATE_NETWORK_LOCKED = 4;
1061    /** SIM card state: Ready */
1062    public static final int SIM_STATE_READY = 5;
1063    /** SIM card state: SIM Card Error, Sim Card is present but faulty
1064     *@hide
1065     */
1066    public static final int SIM_STATE_CARD_IO_ERROR = 6;
1067
1068    /**
1069     * @return true if a ICC card is present
1070     */
1071    public boolean hasIccCard() {
1072        try {
1073            return getITelephony().hasIccCard();
1074        } catch (RemoteException ex) {
1075            // Assume no ICC card if remote exception which shouldn't happen
1076            return false;
1077        } catch (NullPointerException ex) {
1078            // This could happen before phone restarts due to crashing
1079            return false;
1080        }
1081    }
1082
1083    /**
1084     * Returns a constant indicating the state of the
1085     * device SIM card.
1086     *
1087     * @see #SIM_STATE_UNKNOWN
1088     * @see #SIM_STATE_ABSENT
1089     * @see #SIM_STATE_PIN_REQUIRED
1090     * @see #SIM_STATE_PUK_REQUIRED
1091     * @see #SIM_STATE_NETWORK_LOCKED
1092     * @see #SIM_STATE_READY
1093     * @see #SIM_STATE_CARD_IO_ERROR
1094     */
1095    public int getSimState() {
1096        String prop = SystemProperties.get(TelephonyProperties.PROPERTY_SIM_STATE);
1097        if ("ABSENT".equals(prop)) {
1098            return SIM_STATE_ABSENT;
1099        }
1100        else if ("PIN_REQUIRED".equals(prop)) {
1101            return SIM_STATE_PIN_REQUIRED;
1102        }
1103        else if ("PUK_REQUIRED".equals(prop)) {
1104            return SIM_STATE_PUK_REQUIRED;
1105        }
1106        else if ("NETWORK_LOCKED".equals(prop)) {
1107            return SIM_STATE_NETWORK_LOCKED;
1108        }
1109        else if ("READY".equals(prop)) {
1110            return SIM_STATE_READY;
1111        }
1112        else if ("CARD_IO_ERROR".equals(prop)) {
1113            return SIM_STATE_CARD_IO_ERROR;
1114        }
1115        else {
1116            return SIM_STATE_UNKNOWN;
1117        }
1118    }
1119
1120    /**
1121     * Returns the MCC+MNC (mobile country code + mobile network code) of the
1122     * provider of the SIM. 5 or 6 decimal digits.
1123     * <p>
1124     * Availability: SIM state must be {@link #SIM_STATE_READY}
1125     *
1126     * @see #getSimState
1127     */
1128    public String getSimOperator() {
1129        return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_NUMERIC);
1130    }
1131
1132    /**
1133     * Returns the Service Provider Name (SPN).
1134     * <p>
1135     * Availability: SIM state must be {@link #SIM_STATE_READY}
1136     *
1137     * @see #getSimState
1138     */
1139    public String getSimOperatorName() {
1140        return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ALPHA);
1141    }
1142
1143    /**
1144     * Returns the ISO country code equivalent for the SIM provider's country code.
1145     */
1146    public String getSimCountryIso() {
1147        return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ISO_COUNTRY);
1148    }
1149
1150    /**
1151     * Returns the serial number of the SIM, if applicable. Return null if it is
1152     * unavailable.
1153     * <p>
1154     * Requires Permission:
1155     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1156     */
1157    public String getSimSerialNumber() {
1158        try {
1159            return getSubscriberInfo().getIccSerialNumber();
1160        } catch (RemoteException ex) {
1161            return null;
1162        } catch (NullPointerException ex) {
1163            // This could happen before phone restarts due to crashing
1164            return null;
1165        }
1166    }
1167
1168    /**
1169     * Return if the current radio is LTE on CDMA. This
1170     * is a tri-state return value as for a period of time
1171     * the mode may be unknown.
1172     *
1173     * @return {@link PhoneConstants#LTE_ON_CDMA_UNKNOWN}, {@link PhoneConstants#LTE_ON_CDMA_FALSE}
1174     * or {@link PhoneConstants#LTE_ON_CDMA_TRUE}
1175     *
1176     * @hide
1177     */
1178    public int getLteOnCdmaMode() {
1179        try {
1180            return getITelephony().getLteOnCdmaMode();
1181        } catch (RemoteException ex) {
1182            // Assume no ICC card if remote exception which shouldn't happen
1183            return PhoneConstants.LTE_ON_CDMA_UNKNOWN;
1184        } catch (NullPointerException ex) {
1185            // This could happen before phone restarts due to crashing
1186            return PhoneConstants.LTE_ON_CDMA_UNKNOWN;
1187        }
1188    }
1189
1190    //
1191    //
1192    // Subscriber Info
1193    //
1194    //
1195
1196    /**
1197     * Returns the unique subscriber ID, for example, the IMSI for a GSM phone.
1198     * Return null if it is unavailable.
1199     * <p>
1200     * Requires Permission:
1201     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1202     */
1203    public String getSubscriberId() {
1204        try {
1205            return getSubscriberInfo().getSubscriberId();
1206        } catch (RemoteException ex) {
1207            return null;
1208        } catch (NullPointerException ex) {
1209            // This could happen before phone restarts due to crashing
1210            return null;
1211        }
1212    }
1213
1214    /**
1215     * Returns the Group Identifier Level1 for a GSM phone.
1216     * Return null if it is unavailable.
1217     * <p>
1218     * Requires Permission:
1219     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1220     */
1221    public String getGroupIdLevel1() {
1222        try {
1223            return getSubscriberInfo().getGroupIdLevel1();
1224        } catch (RemoteException ex) {
1225            return null;
1226        } catch (NullPointerException ex) {
1227            // This could happen before phone restarts due to crashing
1228            return null;
1229        }
1230    }
1231
1232    /**
1233     * Returns the phone number string for line 1, for example, the MSISDN
1234     * for a GSM phone. Return null if it is unavailable.
1235     * <p>
1236     * Requires Permission:
1237     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1238     */
1239    public String getLine1Number() {
1240        try {
1241            return getSubscriberInfo().getLine1Number();
1242        } catch (RemoteException ex) {
1243            return null;
1244        } catch (NullPointerException ex) {
1245            // This could happen before phone restarts due to crashing
1246            return null;
1247        }
1248    }
1249
1250    /**
1251     * Returns the alphabetic identifier associated with the line 1 number.
1252     * Return null if it is unavailable.
1253     * <p>
1254     * Requires Permission:
1255     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1256     * @hide
1257     * nobody seems to call this.
1258     */
1259    public String getLine1AlphaTag() {
1260        try {
1261            return getSubscriberInfo().getLine1AlphaTag();
1262        } catch (RemoteException ex) {
1263            return null;
1264        } catch (NullPointerException ex) {
1265            // This could happen before phone restarts due to crashing
1266            return null;
1267        }
1268    }
1269
1270    /**
1271     * Returns the MSISDN string.
1272     * for a GSM phone. Return null if it is unavailable.
1273     * <p>
1274     * Requires Permission:
1275     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1276     *
1277     * @hide
1278     */
1279    public String getMsisdn() {
1280        try {
1281            return getSubscriberInfo().getMsisdn();
1282        } catch (RemoteException ex) {
1283            return null;
1284        } catch (NullPointerException ex) {
1285            // This could happen before phone restarts due to crashing
1286            return null;
1287        }
1288    }
1289
1290    /**
1291     * Returns the voice mail number. Return null if it is unavailable.
1292     * <p>
1293     * Requires Permission:
1294     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1295     */
1296    public String getVoiceMailNumber() {
1297        try {
1298            return getSubscriberInfo().getVoiceMailNumber();
1299        } catch (RemoteException ex) {
1300            return null;
1301        } catch (NullPointerException ex) {
1302            // This could happen before phone restarts due to crashing
1303            return null;
1304        }
1305    }
1306
1307    /**
1308     * Returns the complete voice mail number. Return null if it is unavailable.
1309     * <p>
1310     * Requires Permission:
1311     *   {@link android.Manifest.permission#CALL_PRIVILEGED CALL_PRIVILEGED}
1312     *
1313     * @hide
1314     */
1315    public String getCompleteVoiceMailNumber() {
1316        try {
1317            return getSubscriberInfo().getCompleteVoiceMailNumber();
1318        } catch (RemoteException ex) {
1319            return null;
1320        } catch (NullPointerException ex) {
1321            // This could happen before phone restarts due to crashing
1322            return null;
1323        }
1324    }
1325
1326    /**
1327     * Returns the voice mail count. Return 0 if unavailable.
1328     * <p>
1329     * Requires Permission:
1330     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1331     * @hide
1332     */
1333    public int getVoiceMessageCount() {
1334        try {
1335            return getITelephony().getVoiceMessageCount();
1336        } catch (RemoteException ex) {
1337            return 0;
1338        } catch (NullPointerException ex) {
1339            // This could happen before phone restarts due to crashing
1340            return 0;
1341        }
1342    }
1343
1344    /**
1345     * Retrieves the alphabetic identifier associated with the voice
1346     * mail number.
1347     * <p>
1348     * Requires Permission:
1349     *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1350     */
1351    public String getVoiceMailAlphaTag() {
1352        try {
1353            return getSubscriberInfo().getVoiceMailAlphaTag();
1354        } catch (RemoteException ex) {
1355            return null;
1356        } catch (NullPointerException ex) {
1357            // This could happen before phone restarts due to crashing
1358            return null;
1359        }
1360    }
1361
1362    /**
1363     * Returns the IMS private user identity (IMPI) that was loaded from the ISIM.
1364     * @return the IMPI, or null if not present or not loaded
1365     * @hide
1366     */
1367    public String getIsimImpi() {
1368        try {
1369            return getSubscriberInfo().getIsimImpi();
1370        } catch (RemoteException ex) {
1371            return null;
1372        } catch (NullPointerException ex) {
1373            // This could happen before phone restarts due to crashing
1374            return null;
1375        }
1376    }
1377
1378    /**
1379     * Returns the IMS home network domain name that was loaded from the ISIM.
1380     * @return the IMS domain name, or null if not present or not loaded
1381     * @hide
1382     */
1383    public String getIsimDomain() {
1384        try {
1385            return getSubscriberInfo().getIsimDomain();
1386        } catch (RemoteException ex) {
1387            return null;
1388        } catch (NullPointerException ex) {
1389            // This could happen before phone restarts due to crashing
1390            return null;
1391        }
1392    }
1393
1394    /**
1395     * Returns the IMS public user identities (IMPU) that were loaded from the ISIM.
1396     * @return an array of IMPU strings, with one IMPU per string, or null if
1397     *      not present or not loaded
1398     * @hide
1399     */
1400    public String[] getIsimImpu() {
1401        try {
1402            return getSubscriberInfo().getIsimImpu();
1403        } catch (RemoteException ex) {
1404            return null;
1405        } catch (NullPointerException ex) {
1406            // This could happen before phone restarts due to crashing
1407            return null;
1408        }
1409    }
1410
1411    private IPhoneSubInfo getSubscriberInfo() {
1412        // get it each time because that process crashes a lot
1413        return IPhoneSubInfo.Stub.asInterface(ServiceManager.getService("iphonesubinfo"));
1414    }
1415
1416
1417    /** Device call state: No activity. */
1418    public static final int CALL_STATE_IDLE = 0;
1419    /** Device call state: Ringing. A new call arrived and is
1420     *  ringing or waiting. In the latter case, another call is
1421     *  already active. */
1422    public static final int CALL_STATE_RINGING = 1;
1423    /** Device call state: Off-hook. At least one call exists
1424      * that is dialing, active, or on hold, and no calls are ringing
1425      * or waiting. */
1426    public static final int CALL_STATE_OFFHOOK = 2;
1427
1428    /**
1429     * Returns a constant indicating the call state (cellular) on the device.
1430     */
1431    public int getCallState() {
1432        try {
1433            return getITelephony().getCallState();
1434        } catch (RemoteException ex) {
1435            // the phone process is restarting.
1436            return CALL_STATE_IDLE;
1437        } catch (NullPointerException ex) {
1438          // the phone process is restarting.
1439          return CALL_STATE_IDLE;
1440      }
1441    }
1442
1443    /** Data connection activity: No traffic. */
1444    public static final int DATA_ACTIVITY_NONE = 0x00000000;
1445    /** Data connection activity: Currently receiving IP PPP traffic. */
1446    public static final int DATA_ACTIVITY_IN = 0x00000001;
1447    /** Data connection activity: Currently sending IP PPP traffic. */
1448    public static final int DATA_ACTIVITY_OUT = 0x00000002;
1449    /** Data connection activity: Currently both sending and receiving
1450     *  IP PPP traffic. */
1451    public static final int DATA_ACTIVITY_INOUT = DATA_ACTIVITY_IN | DATA_ACTIVITY_OUT;
1452    /**
1453     * Data connection is active, but physical link is down
1454     */
1455    public static final int DATA_ACTIVITY_DORMANT = 0x00000004;
1456
1457    /**
1458     * Returns a constant indicating the type of activity on a data connection
1459     * (cellular).
1460     *
1461     * @see #DATA_ACTIVITY_NONE
1462     * @see #DATA_ACTIVITY_IN
1463     * @see #DATA_ACTIVITY_OUT
1464     * @see #DATA_ACTIVITY_INOUT
1465     * @see #DATA_ACTIVITY_DORMANT
1466     */
1467    public int getDataActivity() {
1468        try {
1469            return getITelephony().getDataActivity();
1470        } catch (RemoteException ex) {
1471            // the phone process is restarting.
1472            return DATA_ACTIVITY_NONE;
1473        } catch (NullPointerException ex) {
1474          // the phone process is restarting.
1475          return DATA_ACTIVITY_NONE;
1476      }
1477    }
1478
1479    /** Data connection state: Unknown.  Used before we know the state.
1480     * @hide
1481     */
1482    public static final int DATA_UNKNOWN        = -1;
1483    /** Data connection state: Disconnected. IP traffic not available. */
1484    public static final int DATA_DISCONNECTED   = 0;
1485    /** Data connection state: Currently setting up a data connection. */
1486    public static final int DATA_CONNECTING     = 1;
1487    /** Data connection state: Connected. IP traffic should be available. */
1488    public static final int DATA_CONNECTED      = 2;
1489    /** Data connection state: Suspended. The connection is up, but IP
1490     * traffic is temporarily unavailable. For example, in a 2G network,
1491     * data activity may be suspended when a voice call arrives. */
1492    public static final int DATA_SUSPENDED      = 3;
1493
1494    /**
1495     * Returns a constant indicating the current data connection state
1496     * (cellular).
1497     *
1498     * @see #DATA_DISCONNECTED
1499     * @see #DATA_CONNECTING
1500     * @see #DATA_CONNECTED
1501     * @see #DATA_SUSPENDED
1502     */
1503    public int getDataState() {
1504        try {
1505            return getITelephony().getDataState();
1506        } catch (RemoteException ex) {
1507            // the phone process is restarting.
1508            return DATA_DISCONNECTED;
1509        } catch (NullPointerException ex) {
1510            return DATA_DISCONNECTED;
1511        }
1512    }
1513
1514    private ITelephony getITelephony() {
1515        return ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE));
1516    }
1517
1518    //
1519    //
1520    // PhoneStateListener
1521    //
1522    //
1523
1524    /**
1525     * Registers a listener object to receive notification of changes
1526     * in specified telephony states.
1527     * <p>
1528     * To register a listener, pass a {@link PhoneStateListener}
1529     * and specify at least one telephony state of interest in
1530     * the events argument.
1531     *
1532     * At registration, and when a specified telephony state
1533     * changes, the telephony manager invokes the appropriate
1534     * callback method on the listener object and passes the
1535     * current (udpated) values.
1536     * <p>
1537     * To unregister a listener, pass the listener object and set the
1538     * events argument to
1539     * {@link PhoneStateListener#LISTEN_NONE LISTEN_NONE} (0).
1540     *
1541     * @param listener The {@link PhoneStateListener} object to register
1542     *                 (or unregister)
1543     * @param events The telephony state(s) of interest to the listener,
1544     *               as a bitwise-OR combination of {@link PhoneStateListener}
1545     *               LISTEN_ flags.
1546     */
1547    public void listen(PhoneStateListener listener, int events) {
1548        String pkgForDebug = mContext != null ? mContext.getPackageName() : "<unknown>";
1549        try {
1550            Boolean notifyNow = true;
1551            sRegistry.listen(pkgForDebug, listener.callback, events, notifyNow);
1552        } catch (RemoteException ex) {
1553            // system process dead
1554        } catch (NullPointerException ex) {
1555            // system process dead
1556        }
1557    }
1558
1559    /**
1560     * Returns the CDMA ERI icon index to display
1561     *
1562     * @hide
1563     */
1564    public int getCdmaEriIconIndex() {
1565        try {
1566            return getITelephony().getCdmaEriIconIndex();
1567        } catch (RemoteException ex) {
1568            // the phone process is restarting.
1569            return -1;
1570        } catch (NullPointerException ex) {
1571            return -1;
1572        }
1573    }
1574
1575    /**
1576     * Returns the CDMA ERI icon mode,
1577     * 0 - ON
1578     * 1 - FLASHING
1579     *
1580     * @hide
1581     */
1582    public int getCdmaEriIconMode() {
1583        try {
1584            return getITelephony().getCdmaEriIconMode();
1585        } catch (RemoteException ex) {
1586            // the phone process is restarting.
1587            return -1;
1588        } catch (NullPointerException ex) {
1589            return -1;
1590        }
1591    }
1592
1593    /**
1594     * Returns the CDMA ERI text,
1595     *
1596     * @hide
1597     */
1598    public String getCdmaEriText() {
1599        try {
1600            return getITelephony().getCdmaEriText();
1601        } catch (RemoteException ex) {
1602            // the phone process is restarting.
1603            return null;
1604        } catch (NullPointerException ex) {
1605            return null;
1606        }
1607    }
1608
1609    /**
1610     * @return true if the current device is "voice capable".
1611     * <p>
1612     * "Voice capable" means that this device supports circuit-switched
1613     * (i.e. voice) phone calls over the telephony network, and is allowed
1614     * to display the in-call UI while a cellular voice call is active.
1615     * This will be false on "data only" devices which can't make voice
1616     * calls and don't support any in-call UI.
1617     * <p>
1618     * Note: the meaning of this flag is subtly different from the
1619     * PackageManager.FEATURE_TELEPHONY system feature, which is available
1620     * on any device with a telephony radio, even if the device is
1621     * data-only.
1622     *
1623     * @hide pending API review
1624     */
1625    public boolean isVoiceCapable() {
1626        if (mContext == null) return true;
1627        return mContext.getResources().getBoolean(
1628                com.android.internal.R.bool.config_voice_capable);
1629    }
1630
1631    /**
1632     * @return true if the current device supports sms service.
1633     * <p>
1634     * If true, this means that the device supports both sending and
1635     * receiving sms via the telephony network.
1636     * <p>
1637     * Note: Voicemail waiting sms, cell broadcasting sms, and MMS are
1638     *       disabled when device doesn't support sms.
1639     *
1640     * @hide pending API review
1641     */
1642    public boolean isSmsCapable() {
1643        if (mContext == null) return true;
1644        return mContext.getResources().getBoolean(
1645                com.android.internal.R.bool.config_sms_capable);
1646    }
1647
1648    /**
1649     * Returns all observed cell information from all radios on the
1650     * device including the primary and neighboring cells. This does
1651     * not cause or change the rate of PhoneStateListner#onCellInfoChanged.
1652     *<p>
1653     * The list can include one or more of {@link android.telephony.CellInfoGsm CellInfoGsm},
1654     * {@link android.telephony.CellInfoCdma CellInfoCdma},
1655     * {@link android.telephony.CellInfoLte CellInfoLte} and
1656     * {@link android.telephony.CellInfoWcdma CellInfoCdma} in any combination.
1657     * Specifically on devices with multiple radios it is typical to see instances of
1658     * one or more of any these in the list. In addition 0, 1 or more CellInfo
1659     * objects may return isRegistered() true.
1660     *<p>
1661     * This is preferred over using getCellLocation although for older
1662     * devices this may return null in which case getCellLocation should
1663     * be called.
1664     *<p>
1665     * @return List of CellInfo or null if info unavailable.
1666     *
1667     * <p>Requires Permission: {@link android.Manifest.permission#ACCESS_COARSE_LOCATION}
1668     */
1669    public List<CellInfo> getAllCellInfo() {
1670        try {
1671            return getITelephony().getAllCellInfo();
1672        } catch (RemoteException ex) {
1673            return null;
1674        } catch (NullPointerException ex) {
1675            return null;
1676        }
1677    }
1678
1679    /**
1680     * Sets the minimum time in milli-seconds between {@link PhoneStateListener#onCellInfoChanged
1681     * PhoneStateListener.onCellInfoChanged} will be invoked.
1682     *<p>
1683     * The default, 0, means invoke onCellInfoChanged when any of the reported
1684     * information changes. Setting the value to INT_MAX(0x7fffffff) means never issue
1685     * A onCellInfoChanged.
1686     *<p>
1687     * @param rateInMillis the rate
1688     *
1689     * @hide
1690     */
1691    public void setCellInfoListRate(int rateInMillis) {
1692        try {
1693            getITelephony().setCellInfoListRate(rateInMillis);
1694        } catch (RemoteException ex) {
1695        } catch (NullPointerException ex) {
1696        }
1697    }
1698
1699    /**
1700     * Returns the MMS user agent.
1701     */
1702    public String getMmsUserAgent() {
1703        if (mContext == null) return null;
1704        return mContext.getResources().getString(
1705                com.android.internal.R.string.config_mms_user_agent);
1706    }
1707
1708    /**
1709     * Returns the MMS user agent profile URL.
1710     */
1711    public String getMmsUAProfUrl() {
1712        if (mContext == null) return null;
1713        return mContext.getResources().getString(
1714                com.android.internal.R.string.config_mms_user_agent_profile_url);
1715    }
1716}
1717