检测外拨电话何时开始播放回铃音。

问题描述 投票：13回答：1

我想检测一个外拨电话开始播放回铃音时的状态。我已经尝试了各种方法来检测这种状态。下面是其中的一些方法。

1. 使用 PhoneStateListener:

(在Android系统中无法检测到外拨电话是否被接听。)

import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;

public class CustomPhoneStateListener extends PhoneStateListener {

    public void onCallStateChanged(int state, String num) {
        Log.d(CallStatusPlugin.TAG, ">>>state changed" + state);
    }
}

但像这样的州 TelephonyManager.CALL_STATE_IDLE, TelephonyManager.CALL_STATE_OFFHOOK 并没有给我们这些状态。

2. 使用 READ_PRECISE_PHONE_STATE:

在上述同一电话状态监听器中添加方法。

public void onPreciseCallStateChanged() {
    Log.d(CallStatusPlugin.TAG, "onPreciseCallStateChanged");
}

但根据我的研究，读取精确的状态要求app必须是一个系统app。

3. 使用 NotificationListener:

public class CustomNotificationListener extends NotificationListenerService {

    public static final String TAG = "CallStatusPlugin";

    public CustomNotificationListener() {
        Log.v(TAG, ">>> CustomNotificationListener");
    }

    public void onNotificationPosted(StatusBarNotification sbn) {
        Log.i(TAG, "New Notification");

        Bundle extras = sbn.getNotification().extras;

        if ("Ongoing call".equals(extras.getString(Notification.EXTRA_TEXT))) {
            Log.v(TAG, "outgoing call");
        } else if ("Dialing".equals(extras.getString(Notification.EXTRA_TEXT))) {
            Log.v(TAG, "dialling call");
        }
    }
}

但这也无济于事，因为当外拨电话开始播放回铃音时，操作系统不会改变通知。

4. 使用 BroadcastReceiver:

public class CallBroadcastReceiver extends BroadcastReceiver {

    public static final String TAG = "CallStatusPlugin";

    public void onReceive(Context context, Intent intent) {
        String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);

        Log.i(TAG, "CallBroadcastReceiver state: " + state);

        // TelephonyManager.EXTRA_FOREGROUND_CALL_STATE = "foreground_state"
        Log.d(TAG, "new state >>>>" + intent.getIntExtra("foreground_state", -2));
    }
}

但也没办法。

5. 使用反射。

我还尝试使用反射获取默认拨号器的实例，但没有成功。

    //com.samsung.android.incallui
    Reflections reflections = new Reflections("com.samsung.android.contacts", new SubTypesScanner(false));

    final ClassLoader classLoader = this.getClass().getClassLoader();
    ClassLoader[] loaders = { classLoader };

    ConfigurationBuilder configurationBuilder = (ConfigurationBuilder) reflections.getConfiguration();
    configurationBuilder.setClassLoaders(loaders);

    Log.d(TAG, "cl" + classLoader.toString());
    Set<Class<? extends Object>> allClasses = reflections.getSubTypesOf(Object.class);
    Log.d(TAG, "allclasses" + allClasses.toString());

我无法得到任何类（也许我没有正确使用反射）。

6. 使用 InCallService:

用自定义拨号器替换默认拨号器(我不想使用)，以获得。Call 国家：

import android.os.Bundle;
import android.telecom.Call;
import android.telecom.InCallService;
import android.util.Log;

public class CustomInCallService extends InCallService {

    public static final String TAG = "CallStatusPlugin";

    @Override
    public void onCallAdded(Call call) {
        Log.d(TAG, "onCallAdded: " + call.getState());

        call.registerCallback(
                new Call.Callback() {
                    @Override
                    public void onConnectionEvent (Call call, String event, Bundle extras) {
                        Log.d(TAG, "Call.Callback.onConnectionEvent: " + event + ", " + call.getState());
                    }

                    @Override
                    public void onStateChanged (Call call, int state) {
                        Log.d(TAG, "Call.Callback.onStateChanged: " + state + ", " + call.getState());
                    }
                }
        );
    }
}

该。onStateChanged 最后给我的东西作为。

呼叫国家 -> 9 (STATE_CONNECTING) -> 1 (STATE_DIALING) -> 4 (STATE_ACTIVE)(回答时) -> 7 (STATE_DISCONNECTING)

但调用状态也改为 STATE_DIALING 当外拨电话出现一些问题，比如拨出的号码无法接通，或者手机关机。所以这意味着我们不能说 DIALING 状态是指外拨电话开始播放回铃音的状态。

7. 使用 "状态 "是指外拨电话开始播放回铃音的状态。CallManager 从反思。

(添加3rd Aug 2018)

public class OutCallLogger extends BroadcastReceiver {

    public static final String TAG = "CallStatusPlugin";

    public OutCallLogger() {
        Log.e(TAG, "\n\n\nOutCallLogger Instance Created\n\n\n");
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
        Log.i(TAG, "OutCallLogger state: " + state);

        String number = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
        Log.i(TAG, "Outgoing Number: " + number);

        // TelephonyManager.EXTRA_FOREGROUND_CALL_STATE = "foreground_state"
        Log.d(TAG, "new state >>>>" + intent.getIntExtra("foreground_state", -2));
        Log.d(TAG, "new state >>>>" + intent.getIntExtra("ringing_state", -2));
        Log.d(TAG, "new state >>>>" + intent.getIntExtra("background_state", -2));
        Log.d(TAG, "new state >>>>" + intent.getIntExtra("disconnect_cause", -2));

        final ClassLoader classLoader = this.getClass().getClassLoader();

        try {
            Class<?> callManagerClass = classLoader.loadClass("com.android.internal.telephony.CallManager");
            Log.e(TAG, "CallManager: Class loaded " + callManagerClass.toString());

            Method[] methods = callManagerClass.getDeclaredMethods();
            for (Method m : methods) {
                Log.e(TAG, "Methods: " + m.getName());
            }

            Method getInstanceMethod = callManagerClass.getDeclaredMethod("getInstance");
            getInstanceMethod.setAccessible(true);
            Log.e(TAG, "CallManager: Method loaded " + getInstanceMethod.getName());

            Object callManagerObject = getInstanceMethod.invoke(null);
            Log.e(TAG, "CallManager: Object loaded " + callManagerObject.getClass().getName());

            Method getAllPhonesMethod = callManagerClass.getDeclaredMethod("getAllPhones");
            Log.e(TAG, "CallManager: Method loaded " + getAllPhonesMethod.getName());

            Method getForegroundCallsMethod = callManagerClass.getDeclaredMethod("getForegroundCalls");
            Log.e(TAG, "CallManager: Method loaded " + getForegroundCallsMethod.getName());
            List foregroundCalls = (List) getForegroundCallsMethod.invoke(callManagerObject);
            Log.e(TAG, "Foreground calls: " + foregroundCalls + ", " + foregroundCalls.size());

            Method getBackgroundCallsMethod = callManagerClass.getDeclaredMethod("getBackgroundCalls");
            Log.e(TAG, "CallManager: Method loaded " + getForegroundCallsMethod.getName());
            List backgroundCalls = (List) getBackgroundCallsMethod.invoke(callManagerObject);
            Log.e(TAG, "Background calls: " + backgroundCalls + ", " + backgroundCalls.size());

            Timer timer = new Timer();

            // keep printing all the for 20 seconds to check if we got one
            TimerTask doAsynchronousTask = new TimerTask() {
                long t0 = System.currentTimeMillis();

                @Override
                public void run() {
                    // cancel the timer after 20 seconds
                    if (System.currentTimeMillis() - t0 > 20 * 1000) {
                        cancel();
                        return;
                    }

                    try {
                        List phonesObject = (List) getAllPhonesMethod.invoke(callManagerObject);
                        Log.e(TAG, "All phones " + phonesObject + ", " + phonesObject.size());

                        List foregroundCalls = (List) getForegroundCallsMethod.invoke(callManagerObject);
                        Log.e(TAG, "Foreground calls: " + foregroundCalls + ", " + foregroundCalls.size());

                        Object backgroundCalls = getBackgroundCallsMethod.invoke(callManagerObject);
                        Log.e(TAG, "Background calls: " + backgroundCalls);

                        String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
                        Log.i(TAG, "New state: " + state);
                    } catch (Exception e) {
                        Log.e(TAG, ">>>1. " + e.getMessage());
                    }
                }
            };

            timer.schedule(doAsynchronousTask, 0, 1000); //execute in every 1000 ms
        } catch (ClassNotFoundException e) {
            Log.e(TAG, ">>>2. " + e.getMessage());
        } catch (NoSuchMethodException e) {
            Log.e(TAG, ">>>3. " + e.getMessage());
        } catch (InvocationTargetException e) {
            Log.e(TAG, ">>>4. " + e.getMessage());
        } catch (IllegalAccessException e) {
            Log.e(TAG, ">>>5. " + e.getMessage());
        }
    }
}

但我得到的所有背景foreground电话&电话作为emty结果。

08-03 15:19:22.638  2586  4636 E CallStatusPlugin: All phones [], 0
08-03 15:19:22.639  2586  4636 E CallStatusPlugin: Foreground calls: [], 0
08-03 15:19:22.639  2586  4636 E CallStatusPlugin: Background calls: []

不知道操作系统是否在使用 CallManager 或不。

经过2-3周的研究，我了解到。

  1. 隐蔽的API是为我们提供了与操作系统更深层次整合的东西（但是... 谷歌可能会删除Android P中隐藏的API的访问权限。)
  2. Ringing sound of an outgoing call == Ringback tone
  3. State dialing !== State of playing ringback tone
  4. 但是 我没有得出一个结论，我可以说这是我们可以获得外拨电话开始播放回铃音的状态的方法。

我通过阅读所有的操作系统日志来不断调试，通过 adb logcat '*:V' 并看到在我听到回铃音的时候，正在打印日志(adb logcat -b system '*:V'):

07-31 13:34:13.487  3738 29960 I Telephony: AsyncConnectTonePlayer : play
07-31 13:34:13.784  3273  7999 D SSRM:p  : SIOP:: AP = 330, PST = 313 (W:26), BAT = 294, USB = 0, CHG = 0
07-31 13:34:13.902  3738 29960 I Telephony: AsyncConnectTonePlayer : onCompletion
07-31 13:34:14.304  3273 15438 D CustomFrequencyManagerService: releaseDVFSLockLocked : Getting Lock type frm List : DVFS_MIN_LIMIT  frequency : 1352000  uid : 1000  pid : 3273  tag : com.samsung.android.incallui@2
07-31 13:34:14.639  3273  7999 D AudioService: getStreamVolume 0 index 10
07-31 13:34:16.449  4175  4175 D io_stats: !@ 179,0 r 264349 9232882 w 465999 10111332 d 42634 3418440 f 235485 235449 iot 468730 459107 th 51200 0 0 pt 0 inp 0 0 104823.814

然后，我开始上网搜索相关的东西。io统计事件安卓 & GSM连接事件 但是我想不出有什么办法可以让外拨电话开始播放回铃音的那种特殊状态。

我看了各种安卓代码，找出一些提示。

  1. TelephonyConnection
  2. GsmConnection

有什么提示或方向可以让我找到实现这个功能的方法吗？比如GSM连接。ConnectionService, ConnectivityManager, ConnectionService 或 ConnectionRequest 任何东西？

编辑1

阅读更多的日志导致我 SipManager 我读到 SIP基本呼叫流程示例 我想，安卓系统是用它来拨打或接听电话的。

07-31 16:29:55.335  4076  5081 I reSIProcate: INFO | RESIP:TRANSACTION | TuSelector.cxx:131 | Start add(alm)
07-31 16:29:55.335  4076  5081 I reSIProcate: INFO | RESIP:TRANSACTION | TuSelector.cxx:138 | AlarmMsg is not null
07-31 16:29:55.335  4076  5081 I reSIProcate: INFO | RESIP:TRANSACTION | TuSelector.cxx:140 | Sending AlarmMessage 0 to TUs
07-31 16:29:55.335  4076  5081 I reSIProcate: INFO | RESIP:TRANSACTION | TuSelector.cxx:145 | End add(alm)
07-31 16:29:55.335  4076  5081 I reSIProcate: INFO | RESIP:DNS | DnsResult.cxx:240 | Whitelisting 2405:200:380:1581::42(28): 2405:200:380:1581::42
07-31 16:29:55.335  4076  5081 I reSIProcate: INFO | RESIP:DNS | RRVip.cxx:128 | updating an existing vip: 2405:200:380:1581::42 with 2405:200:380:1581::42
07-31 16:29:55.335  4076  5081 I reSIProcate: INFO | RESIP:TRANSACTION | TuSelector.cxx:71 | Send to TU: TU: CALL-SESSION(8) size=0 
07-31 16:29:55.335  4076  5081 I reSIProcate: 
07-31 16:29:55.335  4076  5081 I reSIProcate: SipResp: 180 tid=935e2afa889bdcad cseq=1 INVITE [email protected]:5070 / 1 from(wire)
07-31 16:29:55.336  4076  5081 D StackIF : readMessage: messageType 2 tid 0 pduLength 920
07-31 16:29:55.336  4076  5081 D SECIMSJ[0]: [UNSL]< NOTIFY_SIP_MESSAGE
07-31 16:29:55.336  4076  5081 D StackIF[0]: processNotify: id NOTIFY_SIP_MESSAGE
07-31 16:29:55.340  4076  5081 D SIPMSG[0]: [<--] SIP/2.0 180 Ringing [CSeq: 1 INVITE]
07-31 16:29:55.340  4076  4896 D ResipRawSipHandler: handleMessage: event: 100
07-31 16:29:55.340  4076  5082 D OpenApiServiceModule: handleMessage: what 100
07-31 16:29:55.341  4076  4896 D ResipVolteHandler: handleMessage: evt 114
07-31 16:29:55.341  4076  5081 D CpAudioEngineClient: SAE_NotiInfo: SAE_NotiInfo string: 16:29:55.341<180 Ringing:1 INVITE
07-31 16:29:55.341  4076  5081 D VoIpEngineProxy: NotiInfo:Sending IPC_IMS_INFO Noti

会有用处吗？

android android-activity sip gsm
1个回答
1
投票

现在在Android R中，我们有公共api的权限。

READ_PRECISE_PHONE_STATE

允许只读访问精确的手机状态。允许读取关于手机状态的详细信息，用于特殊用途的应用，如拨号器、运营商应用或ims应用。

也许你现在就可以使用它来实现精确的电话状态，我已经在定制的Android系统中得到了精确的电话状态。

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