通知AlarmManager问题

时间:2013-06-20 09:53:22

标签: java android algorithm notifications alarmmanager

我有三个问题:

1)到目前为止,我已经实现了这一点:

public final class CalculateTime {

    public int iHour;
    public int iMinute;
    public Calendar calendar;

    private void calculateRandomNumbers() {
        Random randomNumberGenerator = new Random();
        iHour = randomNumberGenerator.nextInt(19 - 9) + 9;
        iMinute = randomNumberGenerator.nextInt(59);
    }

    public void calculateRandomTime() {
        calculateRandomNumbers();
        calendar = GregorianCalendar.getInstance();
        calendar.setTime(new Date());
        calendar.set(Calendar.HOUR_OF_DAY, iHour);
        calendar.set(Calendar.MINUTE, iMinute);
    }
}

因此,通知应该在9点到19点之间随时推送一次。但是通知在9点到19点之间发送两次。

2)当计算过去时,立即推送通知。

3)我想每周发一次通知,我该如何实施?我试过了:

// For Monday
calendar.set(Calendar.DAY_OF_WEEK, 2)

但我不确定这是否正确,因为我无法轻易测试。 (我不能每次都等一个星期!):/

更多代码,设置闹钟:

public final class NotificationService extends IntentService {

    public static final String DESCRIPTION = "description";
    public static final String HEADLINE = "headline";

    private static final int FM_NOTIFICATION_ID = 0;

    public NotificationService() {
        super("NotificationService");
    }

    @Override
    protected void onHandleIntent(Intent intent) {
        /*
         * This method is invoked whenever an intent for this service is fired.
         * The actual firing is done by the AlarmManager in the
         * TodoEntriesAdapter, but really we don't care at this point where
         * exactly the intent came from.
         */
        String description = intent.getStringExtra(DESCRIPTION);
        String headline = intent.getStringExtra(HEADLINE);

        addNotification(description, headline);
    }

    private void addNotification(String description, String headline) {

        NotificationCompat.Builder builder =
            new NotificationCompat.Builder(this)
            .setSmallIcon(R.drawable.ic_launcher)
            .setContentTitle(headline)
            .setContentText(description)
            .setAutoCancel(true);

        Intent notificationIntent = new Intent(this, ReadNotification.class);
        notificationIntent.putExtra("description", description);
        notificationIntent.putExtra("headline", headline);

        PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent,   
            PendingIntent.FLAG_UPDATE_CURRENT);
            builder.setContentIntent(contentIntent);

        // Add as notification  
        NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);  
        manager.notify(FM_NOTIFICATION_ID, builder.build());  
        }
    }

1 个答案:

答案 0 :(得分:0)

  1.   

    通知发送两次。

    查看实际与AlarmManager交互的代码会有所帮助。如果显示所选时间(例如使用日志工具),您将能够看到哪个通知是正确的,以及是否调用了两次调度警报的代码。

  2.   

    当计算过去时,会立即推送通知。

    这是documented behaviour。您需要手动检查时间是否过去,如果是,则需要将其向前移动一周。

  3.   

    我想每周发一次通知。

    尝试setRepeating(type, start, 7 * AlarmManager.INTERVAL_DAY, operation)

      

    我无法轻易测试。

    除了手动更改手机日期的原始方法之外,您还可以通过模拟AlarmManager类来测试应用程序(将其替换为使用正确参数检查正确方法的虚拟类)。