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我已经搜索并尝试了许多通知的源代码。现在我正在使用此代码发送通知：

报警主

    System.out.println("Lancio sveglia");

Date dat  = new Date();//initializes to now
    Calendar cal_alarm = Calendar.getInstance();
    Calendar cal_now = Calendar.getInstance();
    cal_now.setTime(dat);
    cal_alarm.setTime(dat);
    cal_alarm.set(Calendar.HOUR_OF_DAY,18);//set the alarm time
    cal_alarm.set(Calendar.MINUTE, 00);
    cal_alarm.set(Calendar.SECOND,0);



  //Create a new PendingIntent and add it to the AlarmManager
    Intent intent2 = new Intent(this, AlarmReceiverActivity.class);

    PendingIntent pendingIntent = PendingIntent.getService(this,
        34567, intent2, PendingIntent.FLAG_CANCEL_CURRENT);



    AlarmManager am =
        (AlarmManager)getSystemService(Activity.ALARM_SERVICE);

    am.cancel(pendingIntent);
    am.set(AlarmManager.RTC_WAKEUP, cal_alarm.getTimeInMillis(), pendingIntent);

警报接收器活动 

@Override
public void onCreate() {
    //super.onCreate(savedInstanceState);

    System.out.println("Arrivo in AlarmReceiverActivity");

    Context context =  this.getApplicationContext();


    nm = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
          CharSequence from = "[text]";
          CharSequence message = "S[text]";
          PendingIntent contentIntent = PendingIntent.getActivity(this, 001,
            new Intent(), 0);
          Notification notif = new Notification(R.drawable.ic_launcher,
            "[text]", System.currentTimeMillis());
          notif.setLatestEventInfo(context, from, message, contentIntent);
          nm.notify(1, notif);

但是通知警报在某些设备中每 30 分钟重复一次，另一种则每 1 小时重复一次。但现在我还没有设置闹钟重复。

我如何设置系统以发送一次通知。有任何想法吗？任何帮助都会很棒

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0 回答 0