来电时无振铃事件

我不知道哪里出了问题。 听者听不懂onRinging事件（这样我就可以决定接受还是拒绝来电）。 清单中是这样的：

<uses-permission android:name="android.permission.USE_SIP" />

在主要活动中onCreate这是：

IntentFilter filter = new IntentFilter();
filter.addAction("android.SipDemo.INCOMING_CALL");
callReceiver = new IncomingCallReceiver();
this.registerReceiver(callReceiver, filter);
...
SipManager manager = SipManager.newInstance(this);
Intent i = new Intent();
i.setAction("android.SipDemo.INCOMING_CALL");
PendingIntent pi = PendingIntent.getBroadcast(this, 0, i, Intent.FILL_IN_DATA);
manager.open(me, pi, null);

in BroadcastReceiver类是这样的：

public void onReceive(Context context, Intent intent) {
SipAudioCall incomingCall = null;
try {
SipAudioCall.Listener listener = new SipAudioCall.Listener() {
...
@Override
public void onCallEnded(SipAudioCall call) {
// TODO Auto-generated method stub
super.onCallEnded(call);
}
@Override
public void onRinging(SipAudioCall call, SipProfile caller) {
try {
call.answerCall(30);
call.startAudio();
call.setSpeakerMode(true);
if(call.isMuted()) {
call.toggleMute();
}
} catch (Exception e) {
e.printStackTrace();
}
}
};
WalkieTalkieActivity wtActivity = (WalkieTalkieActivity) context;
incomingCall = wtActivity.manager.takeAudioCall(intent, listener);
wtActivity.call = incomingCall;
...

我收到CallEnd事件和onChanged（结束通话后）但我没有收到onRinging事件。 可能有什么问题？ 谢谢

EDIT :我改变了这一切。 我将新的意图过滤器添加到接收器中，如下所示（粗体）：

<receiver android:name=".IncomingCallReceiver" android:label="Call Receiver">
    **<intent-filter>  
        <action android:name="android.intent.action.PHONE_STATE" />  
    </intent-filter>**  
</receiver>

我像这样更改了 BroadcastReceiver 继承类（粗体）：

@Override
public void onReceive(Context context, Intent intent) {
    try {
        **PhoneStateListener phoneListener=new PhoneStateListener() {
        @Override
        public void onCallStateChanged(int state, String incomingNumber) {
        // TODO Auto-generated method stub
        Log.d("DEBUG", "Phone listener....");
        String stateString = "N/A";
        switch (state) {
        case TelephonyManager.CALL_STATE_IDLE:
        stateString = "Idle";
        break;
        case TelephonyManager.CALL_STATE_OFFHOOK:
        stateString = "Off Hook";
        break;
        case TelephonyManager.CALL_STATE_RINGING:
        stateString = "Ringing";
        break;
    }
}
};**
WalkieTalkieActivity wtActivity = (WalkieTalkieActivity) context;
SipSession ses=wtActivity.manager.getSessionFor(intent);
**TelephonyManager telephony = (TelephonyManager) Context.getSystemService(Context.TELEPHONY_SERVICE);  
telephony.listen(phoneListener,PhoneStateListener.LISTEN_CALL_STATE);**
...

现在我只得到 IDLE 状态，但仍然没有振铃。

SipAudioCall 类的源代码中有错误。

要解决此问题：

incomingCall = wtActivity.manager.takeAudioCall(intent, null);
incomingCall.setListener(listener, true);