Android 设备重启检查指定的报警时间是否过去

Question

我需要你的帮助。我被这个问题困住了。警报正常工作。但是，当设备重启时，db中存储的指定时间是过去(下午3点)，当前时间是下午4点，如何检查以防止立即触发警报？

Docs说:

If the stated trigger time is in the past, the alarm will be triggered immediately. Here's what I've tried so far:

class DeviceBootReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {

    // Check if successful reboot
    if (intent.getAction().equals("android.intent.action.BOOT_COMPLETED")) {

        SharedPreferences shared = context.getSharedPreferences(Constants.PREF_NAME, Context.MODE_PRIVATE);
        // Check if daily notification is enabled
        // If yes, call NotificationPublisher to communicate with NotificationAlarmService
        if(shared.getBoolean(Constants.KEY_IS_DAILY_NOTIFIED, false)) {
            DBHelper dbHelper = new DBHelper(context);
            DBConnector.dbConnect(dbHelper);

            int DAILY_NOTIFICATION_ID = Constants.DAILY_VERSE_NOTIFICATION_1_ID;
            ArrayList<Notification> notificationList = dbHelper.getNotifications();
            Log.e("", "notificationList: " + notificationList.size());

            for(Notification obj : notificationList) {
                Calendar datetime = Calendar.getInstance();
                datetime.set(Calendar.HOUR_OF_DAY, obj.getHourOfDay());
                datetime.set(Calendar.MINUTE, obj.getMinute());
                datetime.set(Calendar.SECOND, 0);

                Calendar now = Calendar.getInstance();
                if (now.after(datetime)) {
                    datetime.add(Calendar.DATE, now.get(Calendar.DATE) + 1);
                }

                Log.e("BOOT RECEIVER", "" + obj.getHourOfDay() + ":" + obj.getMinute());

                Intent myIntent = new Intent(context, NotificationPublisher.class);
                PendingIntent pendingIntent = PendingIntent.getBroadcast(context,
                        DAILY_NOTIFICATION_ID++,
                        myIntent, PendingIntent.FLAG_UPDATE_CURRENT);
                AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
                alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,
                        datetime.getTimeInMillis(), AlarmManager.INTERVAL_DAY,
                        pendingIntent);
            }

        }

    }
}

安卓 list :

<receiver
        android:name=".utils.DeviceBootReceiver" >
        <intent-filter>
            <action android:name="android.intent.action.BOOT_COMPLETED" />
            <action android:name="android.intent.action.QUICKBOOT_POWERON" />
        </intent-filter>
    </receiver>

我的代码似乎有什么问题？我将不胜感激任何帮助。谢谢!

Answer 1

我像这样设置和检查闹钟时间，它现在对我有用:

Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, alarmTimePicker.getCurrentHour());
calendar.set(Calendar.MINUTE, alarmTimePicker.getCurrentMinute());
Calendar now = Calendar.getInstance();
now.setTimeInMillis(System.currentTimeMillis());
if (calendar.before(now))
    calendar.add(Calendar.DAY_OF_MONTH, 1);