Question

我在晚上10:30收到通知。但是当我的设备在晚上10:30关闭然后在我下午11:00打开我的设备后，我没有得到待处理的通知。所以我不明白问题是什么。任何帮助将不胜感激。

以下是我在创建活动中的代码。

    Intent alarmIntent = new Intent(CH_Dashboard.this,  TimeAlarmEvening.class);

    PendingIntent pendingIntent = PendingIntent.getBroadcast(CH_Dashboard.this, 0, alarmIntent, 0);

    AlarmManager manager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);

    Calendar firingCal = Calendar.getInstance();
    Calendar currentCal = Calendar.getInstance();

    firingCal.set(Calendar.HOUR, 10);
    firingCal.set(Calendar.MINUTE, 30);
    firingCal.set(Calendar.SECOND, 0);
    firingCal.set(Calendar.AM_PM,Calendar.PM);

    long intendedTime = firingCal.getTimeInMillis();
    long currentTime = currentCal.getTimeInMillis();

    if(intendedTime >= currentTime)
    {
        manager.setRepeating(AlarmManager.RTC,
                intendedTime, AlarmManager.INTERVAL_DAY,
                pendingIntent);
    }
    else
    {
        firingCal.add(Calendar.DAY_OF_MONTH, 1);
        intendedTime = firingCal.getTimeInMillis();

        manager.setRepeating(AlarmManager.RTC,
                intendedTime, AlarmManager.INTERVAL_DAY,
                pendingIntent);
    }

我的接收器代码在此处，并在设备开启时成功获取通知。

        Intent notificationIntent = new Intent(context, CH_Dashboard.class);
        notificationIntent.putExtra("fromNotification","notify");
        TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
        stackBuilder.addParentStack(CH_Dashboard.class);
        stackBuilder.addNextIntent(notificationIntent);

        PendingIntent pendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);

        NotificationCompat.Builder builder = new NotificationCompat.Builder(context);

        builder.setAutoCancel(true);

        Notification notification = builder.setContentTitle("Demo App Notification")
                .setContentText("New Notification From Demo App..")
                .setTicker("New Message Alert!")
                .setSmallIcon(R.mipmap.ic_launcher)
                .setContentIntent(pendingIntent).build();

        NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(0, notification);

这是我的Boot接收器代码。

    if (intent.getAction().equals(Intent.ACTION_BOOT_COMPLETED))
    {
     Intent alarmIntent = new Intent(context, TimeAlarmEvening.class);
     PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, alarmIntent, 0);

    AlarmManager manager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);

    Calendar firingCal = Calendar.getInstance();
    Calendar currentCal = Calendar.getInstance();

    firingCal.set(Calendar.HOUR, 10);
    firingCal.set(Calendar.MINUTE, 30);
    firingCal.set(Calendar.SECOND, 0);
    firingCal.set(Calendar.AM_PM,Calendar.PM);

    long intendedTime = firingCal.getTimeInMillis();
    long currentTime = currentCal.getTimeInMillis();

    if(intendedTime >= currentTime)
    {
        manager.setInexactRepeating(AlarmManager.RTC,
                intendedTime, AlarmManager.INTERVAL_DAY,
                pendingIntent);
    }
    else
    {
        firingCal.add(Calendar.DAY_OF_MONTH, 1);
        intendedTime = firingCal.getTimeInMillis();

        manager.setInexactRepeating(AlarmManager.RTC,
                intendedTime, AlarmManager.INTERVAL_DAY,
                pendingIntent);
    }

  }

最后在清单中我宣布了接收器。

     <receiver
        android:name=".model.AutoStart"
        android:enabled="true"
        android:exported="true">
        <intent-filter>
            <action android:name="android.intent.action.BOOT_COMPLETED" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </receiver>

    <receiver android:name=".TimeAlarmEvening">
        <intent-filter>
            <action android:name="android.media.action.DISPLAY_NOTIFICATION_EVENING" />
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </receiver>

Answer 1

那天我解决了，但忘了在这里回答。我在清单文件中做了一些更改。只需删除两个意图过滤器中的行类别默认值即可。

 <receiver
    android:name=".model.AutoStart"
    android:enabled="true"
    android:exported="true">
    <intent-filter>
        <action android:name="android.intent.action.BOOT_COMPLETED" />
    </intent-filter>
</receiver>

<receiver android:name=".TimeAlarmEvening">
    <intent-filter>
        <action android:name="android.media.action.DISPLAY_NOTIFICATION_EVENING" />
    </intent-filter>
</receiver>

Answer 2

我没有为你写下整个代码。但我可以告诉你在哪里可以应用你的逻辑。

- ＆GT;首先，找到一种跟踪自己，错过的方法，例如通过跟踪数据库中的事件状态。

- ＆GT;然后，设置BOOT_COMPLETED BroadcastReceiver以查找电话何时重新启动。在那里，安排任何仍在将来的警报，并决定如何处理过去发生但错过的警报（例如，提出通知指出错过的事件）。

- 执行此操作的一种方法是收听电话关闭事件：

<action android:name="android.intent.action.ACTION_SHUTDOWN" />

在设备关闭之前，保存关机时间。

然后听设备启动：

<action android:name="android.intent.action.BOOT_COMPLETED" />

并编写自己的逻辑，确定在停机期间将触发哪些警报，并使用AlarmManager立即触发警报。

无法在启动时设置重复警报

2 个答案: