如何知道通話何時結束？

Question

可能重複：
How can my android app detect a dropped call?
Detecting outgoing call and call hangup event in android

我正在做一個需要啓動的意圖，當通話結束一個應用程序，但我不知道怎麼做， 我在一個Call Reciver中使用它來跟蹤一個新的呼叫：

telephony.listen(imPhoneListener, PhoneStateListener.LISTEN_CALL_STATE); 

Answer 1

使用TelephonyManager

public void onCallStateChanged(int state, String incomingNumber) { 
       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; 
       } 

       System.out.println("state-:: " + stateString); 
      } 

Answer 2

簡單地當無線電狀態回到空閒狀態時。但是您無法檢測連接是否未建立。