在奥利奥（Oreo）中未触发电话呼叫广播接收器

Question

我通过扩展广播接收器实现了电话接收器。

public abstract class PhonecallReceiver extends BroadcastReceiver {
private static final String TAG = PhonecallReceiver.class.getSimpleName();
//The receiver will be recreated whenever android feels like it.  We need a static variable to remember data between instantiations

private static int lastState = TelephonyManager.CALL_STATE_IDLE;
private static Date callStartTime;
private static boolean isIncoming;
protected static String savedNumber;  //because the passed incoming is only valid in ringing


@Override
public void onReceive(Context context, Intent intent) {
    MyApp.printLog(TAG, " ...intent.getAction()= " + intent.getAction());
    //We listen to two intents.  The new outgoing call only tells us of an outgoing call.  We use it to get the number.
    if (intent.getAction().equals("android.intent.action.NEW_OUTGOING_CALL")) {
        savedNumber = intent.getExtras().getString("android.intent.extra.PHONE_NUMBER");
        MyApp.printLog(TAG, "NEW_OUTGOING_CALL.number = " + savedNumber);
    } else {//TODO: PUT INCOMING CALL HERE..OTHERWISE, TROUBLE
        String stateStr = intent.getExtras().getString(TelephonyManager.EXTRA_STATE);
        String number = intent.getExtras().getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
        int state = 0;
        if (stateStr != null && stateStr.equals(TelephonyManager.EXTRA_STATE_IDLE)) {
            state = TelephonyManager.CALL_STATE_IDLE;
        } else if (stateStr != null && stateStr.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)) {
            state = TelephonyManager.CALL_STATE_OFFHOOK;
        } else if (stateStr != null && stateStr.equals(TelephonyManager.EXTRA_STATE_RINGING)) {
            state = TelephonyManager.CALL_STATE_RINGING;
        }
        //following fix for outgoing calls because above if block can never be executed when called programmatically
        savedNumber = intent.getExtras().getString("PHONE_NUMBER");
        if (savedNumber == null) {
            //savedNumber = intent.getStringExtra("PHONE_NUMBER");
            savedNumber = intent.getExtras().getString("android.intent.extra.PHONE_NUMBER");
        }

        MyApp.printLog(TAG, "else non-NEW_OUTGOING_CALL.number = " + number + " intent.getAction()= " + intent.getAction() + " stateStr = " + stateStr + " savedNumber = " + savedNumber);

        onCallStateChanged(context, state, number);
        savedNumber = null;
    }
}

//Derived classes should override these to respond to specific events of interest
protected void onIncomingCallStarted(Context ctx,int state, String number, Date start) {
}

protected void onOutgoingCallStarted(Context ctx,int state, String number, Date start) {
}

protected void onIncomingCallEnded(Context ctx,int state, String number, Date start, Date end) {
}

protected void onOutgoingCallEnded(Context ctx,int state, String number, Date start, Date end) {
}

protected void onMissedCall(Context ctx,int state, String number, Date start) {
}

//Deals with actual events

//Incoming call-  goes from IDLE to RINGING when it rings, to OFFHOOK when it's answered, to IDLE when its hung up
//Outgoing call-  goes from IDLE to OFFHOOK when it dials out, to IDLE when hung up
public void onCallStateChanged(Context context, int state, String number) {
    if (lastState == state) {
        //No change, debounce extras
        return;
    }
    MyApp.printLog(TAG, " onCallStateChanged.state =" + state + " number =" + number);
    switch (state) {
        case TelephonyManager.CALL_STATE_RINGING:
            isIncoming = true;
            callStartTime = new Date();
            savedNumber = number;
            onIncomingCallStarted(context, state,number, callStartTime);
            break;
        case TelephonyManager.CALL_STATE_OFFHOOK:
            //Transition of ringing->offhook are pickups of incoming calls.  Nothing done on them
            if (lastState != TelephonyManager.CALL_STATE_RINGING) {
                isIncoming = false;
                callStartTime = new Date();
                //following fixes for outgoing calls because above if block in onrecieve can never be executed when called programmatically
                if (savedNumber == null)
                    savedNumber = number;
                if (savedNumber == null) {//still null, then
                    /* TODO
                    if(SmartMonitorService.listener != null) {
                        savedNumber = SmartMonitorService.listener.getOutgoingNumber();
                        SmartMonitorService.listener.setOutgoingNumber(null);
                    }
                    */
                }
                onOutgoingCallStarted(context,state, savedNumber, callStartTime);
            }
            break;
        case TelephonyManager.CALL_STATE_IDLE:
            //Went to idle-  this is the end of a call.  What type depends on previous state(s)
            if (lastState == TelephonyManager.CALL_STATE_RINGING) {
                //Ring but no pickup-  a miss
                if (savedNumber == null)
                    savedNumber = number;
                onMissedCall(context,state, savedNumber, new Date());
            } else if (isIncoming) {
                if (savedNumber == null)
                    savedNumber = number;
                onIncomingCallEnded(context,state, savedNumber, callStartTime, new Date());
            } else {
                //following fix for outgoing calls because above if block can never be executed when called programmatically
                if (savedNumber == null)
                    savedNumber = number;
                onOutgoingCallEnded(context, state,savedNumber, callStartTime, new Date());
            }
            break;
    }
    lastState = state;
}

}

现在，此接收器仅在Android Oreo，Nougat上的拨出呼叫期间触发。在棉花糖测试中，br触发了来电，未接来电和外拨电话。

奥利奥（Oreo）对隐式意图https://developer.android.com/guide/components/broadcast-exceptions应用了限制。无需更改手机状态。

您能帮我了解一下Android Oreo中与此相关的内容吗？

谢谢。