通話に応答するときの通話時間の取得方法

Question

通話時間を記録したいが、私が実装したものは、通話ボタンを押したときからの時間を与えることである。私は、被呼者がコールをピックアップするときからのコール継続時間が必要です。

私の放送受信機はここにあります。代わりPhoneStateListener は以下を参照して使用して、broadcastreceiverを用いる

public class CallDurationReceiver extends BroadcastReceiver { 

private static int lastState = TelephonyManager.CALL_STATE_IDLE; 
private static long callStartTime; 
private static long callEndTime; 
private static boolean isIncoming; 
private static String savedNumber; 


@Override 
public void onReceive(Context context, Intent intent) { 
    //Log.w("intent " , intent.getAction().toString()); 

    if (intent.getAction().equals("android.intent.action.NEW_OUTGOING_CALL")) { 
     savedNumber = intent.getExtras().getString("android.intent.extra.PHONE_NUMBER"); 

    } else { 
     String stateStr = intent.getExtras().getString(TelephonyManager.EXTRA_STATE); 
     String number = intent.getExtras().getString(TelephonyManager.EXTRA_INCOMING_NUMBER); 
     int state = 0; 
     if (stateStr.equals(TelephonyManager.EXTRA_STATE_IDLE)) { 
      state = TelephonyManager.CALL_STATE_IDLE; 
     } else if (stateStr.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)) { 
      state = TelephonyManager.CALL_STATE_OFFHOOK; 
     } else if (stateStr.equals(TelephonyManager.EXTRA_STATE_RINGING)) { 
      state = TelephonyManager.CALL_STATE_RINGING; 
     } 

     onCallStateChanged(context, state, number); 
    } 
} 


public void onCallStateChanged(Context context, int state, String number) { 
    if (lastState == state) { 
     //No change, debounce extras 
     return; 
    } 
    switch (state) { 
     case TelephonyManager.CALL_STATE_RINGING: 
      isIncoming = true; 
      callStartTime = new Date().getTime(); 

      savedNumber = number; 

      Toast.makeText(context, "Incoming Call Ringing", Toast.LENGTH_SHORT).show(); 
      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().getTime(); 
       Toast.makeText(context, "Outgoing Call Started", Toast.LENGTH_SHORT).show(); 
      } 

      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 
       // Toast.makeText(context, "Ringing but no pickup" + savedNumber + " Call time " + callStartTime + " Date " + new Date(), Toast.LENGTH_SHORT).show(); 
      } else if (isIncoming) { 

       // Toast.makeText(context, "Incoming " + savedNumber + " Call time " + callStartTime, Toast.LENGTH_SHORT).show(); 
      } else { 
       callEndTime = new Date().getTime(); 
       long diff = callEndTime - callStartTime; 
       long minutes = (diff/1000)/60; 
       long seconds = (diff/1000) % 60; 
       Toast.makeText(context, savedNumber + " Call time " + minutes + " and " + seconds, Toast.LENGTH_SHORT).show(); 

      } 

      break; 
    } 
    lastState = state; 
} 

Answer 1

： プライベート最終PhoneStateListener mPhoneStateListener =新しいPhoneStateListener（）{

@Override 
    public void onCallStateChanged(int state, String incomingNumber) { 
     if (DBG) Log.d(LOG_TAG, "PhoneStateListener.onCallStateChanged: state=" + state); 

......}

状態

/** Device call state: No activity. */ 
    public static final int CALL_STATE_IDLE = 0; 
    /** Device call state: Ringing. A new call arrived and is 
    * ringing or waiting. In the latter case, another call is 
    * already active. */ 
    public static final int CALL_STATE_RINGING = 1; 
    /** Device call state: Off-hook. At least one call exists 
     * that is dialing, active, or on hold, and no calls are ringing 
     * or waiting. */ 
    public static final int CALL_STATE_OFFHOOK = 2; 
     } 
    } 
}; 

このようにこのリスナーを登録してください：

TelephonyManager tm = 
      (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 
    tm.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE);