AlarmReceiver Android问题

Question

介绍： 通过ToggleButton我让我的用户启用或禁用警报提醒。警报记住我的用户在他最后一次进入应用程序后一小时记录他们的活动，也不希望闹钟在晚上响起。一切正常。

 public void each_hour_alarm() {
    Calendar cal = Calendar.getInstance(); 
    cal.setTime(new Date());               
    int hour = cal.get(Calendar.HOUR_OF_DAY);
    if(hour <= 20 && hour >= 7) {             
    AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    Intent notificationIntent = new Intent("android.media.action.DISPLAY_NOTIFICATION");
    notificationIntent.addCategory("android.intent.category.DEFAULT");

    PendingIntent broadcast = getBroadcast(getApplicationContext(), 100, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
    Calendar calendar = Calendar.getInstance();
        calendar.add(Calendar.HOUR, 1);
    alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), broadcast);
        stop_alarm_9am();
    }else {
        stop_each_hour_alarm();
        alarm_9am();  
    }
}

当我调用一个新方法时问题就出现了：alarm_9am（）; 如果用户尚未在应用程序之前输入，则新方法会在上午9点发出警报。这就是我遇到问题的地方。闹钟在上午9点响起，但也是，这是我的问题，每次我在21h和23：59h之间记录活动时也会发出声音。 我不明白为什么会这样。有任何想法吗？？ 这是代码：

 public void alarm_9am() {

        AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
        Intent notificationIntent = new Intent("android.media.buenosdias.action.DISPLAY_NOTIFICATION");
        notificationIntent.addCategory("android.intent.buenosdias.category.DEFAULT");

        PendingIntent broadcast = getBroadcast(getApplicationContext(), 100, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.HOUR_OF_DAY, 9);
        calendar.set(Calendar.MINUTE, 0);
        calendar.set(Calendar.SECOND, 1);
        alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), broadcast);}

停止alarm_9am（）的代码;

 public void stop_alarm_9am() {
    Intent intentlocal = new Intent("android.media.buenosdias.action.DISPLAY_NOTIFICATION");
    intentlocal.addCategory("android.intent.buenosdias.category.DEFAULT");
    PendingIntent pilocal = getBroadcast(getApplicationContext(), 100, intentlocal, PendingIntent.FLAG_UPDATE_CURRENT);
    AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
    alarmManager.cancel(pilocal);
    pilocal.cancel();
}

我的AlarmReceiver;

public class AlarmReceiver_buenos_dias extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
    Intent notificationIntent = new Intent(context, v_agua.class);
    TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
    stackBuilder.addParentStack(v_agua.class);
    stackBuilder.addNextIntent(notificationIntent);
    PendingIntent pendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
    NotificationCompat.Builder builder = new NotificationCompat.Builder(context);
    Notification notification = builder.setContentTitle("Good Morning")
            .setContentText("Begin New Day")
            .setTicker("Go to app") 

            .setSmallIcon(R.drawable.logo_launcher_a)
            .setSound(Settings.System.DEFAULT_NOTIFICATION_URI)
            .setStyle(new NotificationCompat.BigTextStyle().bigText(""))
            .setAutoCancel(true)
            .setContentIntent(pendingIntent).build();

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

我的问题是每次进入活动时闹钟在21h到23:59之间响起，我不知道为什么。每次我在21h和23:59之间登录活动时，我都不需要发出警报，我只想要alarm_9am（）;早上9点发出声音 谢谢！