Android 中的提醒不重复

Question

我正在尝试在我的 Android 应用程序中设置一个提醒，它会在特定日期的同一设置时间响起。第一次闹钟一切正常，但之后它不会重复，也不会在其他日子里响起。

界面如下：

点击"Save Changes"，将为每个选定的日期调用 scheduleAlarm 方法：

private void scheduleAlarm(int dayOfWeek) {
    Intent myIntent = new Intent(this , NotifyService.class);
    PendingIntent pendingIntent = PendingIntent.getService(this, 0, myIntent, 0);

    AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);

    if (dayOfWeek == 0)
        alarmManager.cancel(pendingIntent);
    else {
        Calendar calendar = Calendar.getInstance();
        String time_str[] = reminder_time.getText().toString().split(":");
        calendar.set(Calendar.DAY_OF_WEEK, dayOfWeek);
        calendar.set(Calendar.HOUR_OF_DAY, Integer.parseInt(time_str[0]));
        calendar.set(Calendar.MINUTE, Integer.parseInt(time_str[1]));
        calendar.set(Calendar.SECOND, 0);
        calendar.set(Calendar.MILLISECOND, 0);

        Long time = calendar.getTimeInMillis();
        Long weekly = AlarmManager.INTERVAL_HOUR / 12; //AlarmManager.INTERVAL_DAY * 7;

        alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, time, weekly, pendingIntent);
    }
}

如您在此版本中所见，我试图每 5 分钟重复一次闹钟 (Long weekly = AlarmManager.INTERVAL_HOUR / 12;)

闹钟响起时调用的通知服务如下：

public class NotifyService extends Service {
public NotifyService() {
}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    //TODO do something useful
    return Service.START_STICKY;
}

@Override
public IBinder onBind(Intent intent) {
    // TODO: Return the communication channel to the service.
    throw new UnsupportedOperationException("Not yet implemented");
}

@Override
public void onCreate() {
    Intent intent = new Intent(this , Splash.class);
    intent.putExtra(getString(R.string.NOTIFICATION), true);
    PendingIntent contentIntent = PendingIntent.getActivity(this, 0, intent, 0);

    Bitmap bm = BitmapFactory.decodeResource(getResources(), R.drawable.notification_icon_ensafe);
    long[] pattern = {500,500,500,500,500,500,500,500,500};

    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
            .setContentTitle(getString(R.string.reminder))
            .setContentText(getString(R.string.reminder_body))
            .setLargeIcon(bm)
            .setSmallIcon(R.drawable.notification_icon_ensafe)
            .setContentIntent(contentIntent)
            .setAutoCancel(true)
            .setVibrate(pattern)
            .setStyle(new NotificationCompat.InboxStyle())
            .setSound(Settings.System.DEFAULT_NOTIFICATION_URI);

    NotificationManager notificationManager  = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
    notificationManager.notify(1, mBuilder.build());
}
}

知道为什么它不起作用吗？

编辑

正如@Frank 所建议的，我实现了一个 BroadcastReceiver，但它从未被调用过。

在清单中：

<receiver android:name=".synchro.BootReceiver"
        android:enabled="false">
        <intent-filter>
            <action android:name="android.intent.action.BOOT_COMPLETED"/>
        </intent-filter>
    </receiver>

class:

public class BootReceiver extends BroadcastReceiver {

List<Integer> selectedDays;
SharedPreferences preferences;

@Override
public void onReceive(Context context, Intent intent) {
    if (intent.getAction().equals("android.intent.action.BOOT_COMPLETED")) {

        **\ STUFF HAPPENS HERE \ **

    }
}
}

broadcaster在上面列出的scheduleAlarm方法中发起，如下：

ComponentName receiver = new ComponentName(getApplicationContext(), BootReceiver.class);
    PackageManager pm = getApplicationContext().getPackageManager();
pm.setComponentEnabledSetting(receiver,
                PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
                PackageManager.DONT_KILL_APP);

还有什么想法吗？

Answer 1

如果您的设备关闭，所有预定的闹钟都会被 OS 取消。这可能是你的问题吗？

要解决此问题，您必须使用广播侦听器来侦听设备启动，并在设备开始广播时再次安排闹钟。

* 编辑 *

您需要的所有信息都在这个页面上：https://developer.android.com/training/scheduling/alarms.html

特别是 "Start an Alarm When the Device Boots" 部分："By default, all alarms are canceled when a device shuts down. To prevent this from happening..."

设置和测试需要一些时间。不急。

Answer 2

好的。我解决了问题。

在 NotifyService class 中，我使用 onCreate() 方法重新安排警报。此方法仅在第一次调用。之后只调用 onStartCommand 。管理这两种方法我实现了一个有效的 AlarmAcheduler。

Android 中的提醒不重复

Reminder in Android doesn't repeat

android

alarmmanager

android-notifications

notificationmanager