删除一个呼叫记录

>调用 PhoneLogs.deleteCall().

_logs.deleteCall(0);

代码实例

下面的代码实例计算某个给定的参与者拨打电话的时间.

---

例: PhoneLogsDemo.java

/**

* PhoneLogsDemo.java

* Copyright (C) 2001-2005 Research In Motion Limited. All rights reserved.

*/

package com.rim.samples.docs.phonelogs;

import net.rim.blackberry.api.phone.phonelogs.*;

import java.lang.*;

import com.rim.samples.docs.baseapp.*;

import net.rim.device.api.system.Application;

 

public class PhoneLogsDemo extends Application {

    private PhoneLogs _logs;

    private int _timeSpokenTo;

    static public void main(String[] args) {

       PhoneLogsDemo app = new PhoneLogsDemo();

       app.enterEventDispatcher();

    }

   

    private PhoneLogsDemo() {

       _logs = PhoneLogs.getInstance();

       PhoneLogsDemo phoneLogsDemo = new PhoneLogsDemo();

       PhoneCallLogID participant = new PhoneCallLogID("5551234");

       _timeSpokenTo = phoneLogsDemo.findTimeSpokenTo(participant,

              PhoneLogs.FOLDER_NORMAL_CALLS);

       }

    // Returns the number of seconds spent on the phone with a participant.

    public int findTimeSpokenTo(PhoneCallLogID participant,

           long folder) {

       int numberOfCalls = this._logs.numberOfCalls(folder);

       int timeSpokenTo = 0;

       PhoneCallLog phoneCallLog;

       ConferencePhoneCallLog conferencePhoneCallLog;

       for (int i = 0; i < numberOfCalls; i++) {

           Object o = _logs.callAt(i, folder);

           if (o instanceof PhoneCallLog) {

              phoneCallLog = (PhoneCallLog)_logs.callAt(i, folder);

              if ( phoneCallLog.getParticipant() == participant)

                  timeSpokenTo += phoneCallLog.getDuration();

              }

           else {

              conferencePhoneCallLog = (ConferencePhoneCallLog)_logs.callAt(i, folder);

              int participants = conferencePhoneCallLog.numberOfParticipants();

              for (int j = 0; j < participants; j++)

                  if (conferencePhoneCallLog.getParticipantAt(j) == participant) {

                     timeSpokenTo += conferencePhoneCallLog.getDuration();

                     j = participants;

                     }

              }

           }

       return timeSpokenTo;

       }

    }