我想检测android应用程序中的传出呼叫。实际上我可以检测拨出电话，但它也适用于传入，我不希望这样。我需要它只为外向工作。这是我的代码......
boolean ringing = false;
boolean offhook = false;
public void onCallStateChanged(int state, String incomingNumber) {
switch (state) {
case TelephonyManager.CALL_STATE_IDLE:
if((!ringing)&& offhook){
///incomming call
}
break;
case TelephonyManager.CALL_STATE_RINGING:
callerPhoneNumber = incomingNumber;
Log.d(TAG, "RINGING");
ringing = true;
offhook = false;
break;
case TelephonyManager.CALL_STATE_OFFHOOK:
Log.d(TAG, "OFFHOOK");
offhook = true;
ringing = false;
break;
}