我試圖用兩種不同的方法創(chuàng)建和刪除警報(bào)，這兩種方法在應(yīng)用程序邏輯中的不同時(shí)刻都被調(diào)用。但是，當(dāng)我調(diào)用AlarmManager的cancel()方法時(shí)，不會(huì)刪除警報(bào)。這是我的addAlarm()方法：AlarmManager alarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);Intent intent = new Intent(PROX_ALERT_INTENT);intent.putExtra("ALERT_TIME", alert.date);intent.putExtra("ID_ALERT", alert.idAlert);intent.putExtra("TITLE", alert.title);intent.putExtra("GEO_LOC", alert.isGeoLoc);PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext,        alert.idAlert, intent, PendingIntent.FLAG_CANCEL_CURRENT);Calendar calendar = Calendar.getInstance();calendar.setTime(alert.date);alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);Log.e("ADD ALERT - WithoutGeoLoc - ",alert.toString());這是我的deleteAlarm（）方法：AlarmManager alarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);Intent intent = new Intent(PROX_ALERT_INTENT);intent.putExtra("ALERT_TIME", alert.date);intent.putExtra("ID_ALERT", alert.idAlert);intent.putExtra("TITLE", alert.title);intent.putExtra("GEO_LOC", alert.isGeoLoc);PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext,        alert.idAlert, intent, PendingIntent.FLAG_CANCEL_CURRENT);alarmManager.cancel(pendingIntent);Log.e(TAG,"REMOVE ALERT - without GeoLoc"+alert.toString());這是我的Logcat：01-23 17:44:07.411: E/ADD ALERT - WithoutGeoLoc -(18789): Alert [latitude=0.0, longitude=0.0, title=bfwu, comments=null, address=null, currency=hrk, idAlert=1, date=Sat Feb 23 17:44:04 CET 2013, isGeoLoc=null]01-23 17:44:13.032: E/REMOVE ALERT without GeoLoc - (18789): Alert [latitude=0.0, longitude=0.0, title=bfwu, comments=null, address=null, currency=hrk, idAlert=1, date=Sat Feb 23 17:44:04 CET 2013, isGeoLoc=null]幾個(gè)注意事項(xiàng)：RTC_WAKEUP #47 是我的原始警報(bào)RTC_WAKEUP #48 是應(yīng)該覆蓋＃47而不是創(chuàng)建新警報(bào)的新警報(bào)。我使用filterEquals()返回的true...的Intent 方法比較了我的add和delete方法中的兩個(gè)intent（不是前瞻性Intents），但是沒(méi)有刪除警報(bào)。我究竟做錯(cuò)了什么？