AlarmManager和通知不起作用

Question

我已經閱讀了有關此主題的幾個問題，但仍然無法弄清楚。

我需要每天同時顯示一條通知。 我正在使用AlarmManager。 看起來寫得不錯，但實際上我不會收到任何警報。 SyncAlarmReceiver永遠不會調用onReceive（）。

這是設置警報的代碼：

private static final int ORA_NOTIFICA = 14;   //Hour for the notification
private static final int MINUTO_NOTIFICA = 35;  //Minutes for the notification
private static final int ID_NOTIFICA_SYNC = 33;  //Notification's ID

public static void setSyncAlarm(Context ctx) {
    Calendar calendar = Calendar.getInstance();

    calendar.set(Calendar.HOUR_OF_DAY, ORA_NOTIFICA);
    calendar.set(Calendar.MINUTE, MINUTO_NOTIFICA);
    AlarmManager am = (AlarmManager) ctx
            .getSystemService(Context.ALARM_SERVICE);
    am.setRepeating(AlarmManager.ELAPSED_REALTIME, calendar.getTimeInMillis(),
            AlarmManager.INTERVAL_DAY, getPendingIntentSync(ctx));
    Log.d("NOTIFICA SYNC", "Alarm set at " + ORA_NOTIFICA + ":"
            + MINUTO_NOTIFICA);
}


public static PendingIntent getPendingIntentSync(Context ctx) {
    return PendingIntent.getBroadcast(ctx, 0, new Intent(ctx,
            SyncAlarmReceiver.class), PendingIntent.FLAG_UPDATE_CURRENT);
}

這是SyncAlarmReceiver：

public class SyncAlarmReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
    Log.d("NOTIFICA SYNC", "Alert Ricevuto");
    PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
    PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "");
    wl.acquire();

    NotificationUtils.createNotifSync(context);

    wl.release();
}

}

最后是createNotifSync：

public static void creaNotificaSync(Context ctx) {
    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
            ctx).setSmallIcon(R.drawable.action_bar_icon)
            .setContentTitle(ctx.getString(R.string.sync_notif_titolo))
            .setContentText(ctx.getString(R.string.sync_notif_testo))
            .setAutoCancel(true);

    Intent resultIntent = new Intent(ctx, ActTestJson.class);

    TaskStackBuilder stackBuilder = TaskStackBuilder.create(ctx);
    stackBuilder.addParentStack(ActTestJson.class);
    stackBuilder.addNextIntent(resultIntent);
    PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0,
            PendingIntent.FLAG_UPDATE_CURRENT);
    mBuilder.setContentIntent(resultPendingIntent);
    NotificationManager mNotificationManager = (NotificationManager) ctx
            .getSystemService(Context.NOTIFICATION_SERVICE);
    mNotificationManager.notify(ID_NOTIFICA_SYNC, mBuilder.build());
}

另外，清單中的代碼段：

 <receiver
        android:name="com.mypackage.SyncAlarmReceiver"
        android:enabled="true" >
    </receiver>

編輯：這就是我在dumbsys警報上使用findstr所發現的

adb shell dumpsys alarm | findstr /C:com.mypackage

RTC_WAKEUP #33: Alarm{42bd9470 type 0 com.mypackage} operation=PendingIntent{429d3238: PendingIntentRecord42fe80a0 com.mypackage startService}}

ELAPSED #12: Alarm{42b4fcc8 type 3 com.mypackage} operation=PendingIntent{42914e20: PendingIntentRecord{42a2a198 com.mypackage broadcastIntent}}

com.contram.unicam.controllori +15ms running, 6 wakeups: +15ms 6 wakes 6 alarms: cmp={com.mypackage/com.mypackage.utils.SyncAlarmReceiver}

RTC_WAKEUP和ELAPSED在這里是因為我嘗試使用這兩種方法（並不真正了解它們的區別）。

編輯：我試圖讀取用於設置時間的日歷，這就是它的toString（）的結果：

java.util.GregorianCalendar[time=1386194671008,areFieldsSet=true,lenient=true,
zone=Europe/Rome,firstDayOfWeek=2,minimalDaysInFirstWeek=4,ERA=1,YEAR=2013,MONTH=11,
WEEK_OF_YEAR=49,WEEK_OF_MONTH=2,DAY_OF_MONTH=4,DAY_OF_YEAR=338,DAY_OF_WEEK=4,
DAY_OF_WEEK_IN_MONTH=1,AM_PM=1,HOUR=11,HOUR_OF_DAY=23,MINUTE=4,SECOND=31,MILLISECOND=8,
ZONE_OFFSET=3600000,DST_OFFSET=0]

使用在線千禧時間轉換器，時間參數轉換為格林尼治標准時間+0200（W. Apr Day 2 2 08）（W. Europe Daylight Time）。

我應該用什么來設置時間？

Answer 1

問題出在ELAPSED_TIME：

am.setRepeating(AlarmManager.ELAPSED_REALTIME, calendar.getTimeInMillis(),
        AlarmManager.INTERVAL_DAY, getPendingIntentSync(ctx));

更改為RTC，它起作用了。