Notifications in specific time every day android

Question

I'd like to make an app that let the user decide what time everyday wants him to remind something with notification...

I'd like to know how am i supposed to trigger a notification in secific time the user wants e.x 7:00am and make him tap on the notification and enter the application in specific activity. But when the user doesn't want to get any more notifications (with a button click) how am i cancel all the notifications...?

I made something like

Intent intent = new Intent(this, main.class);
Bundle bundle = new Bundle();
bundle.putString("title", "Some Title");\
intent.putExtras(bundle);   
PendingIntent pi = PendingIntent.getActivity(this, 0, intent, 0);
String body = "Tap to see the Activity"; 
String title = "Title of notification"; 
Notification n = new Notification(R.drawable.ic_launcher, body, System.currentTimeMillis());
n.setLatestEventInfo(this, title, body, pi);
n.defaults = Notification.DEFAULT_ALL;
nm.notify(uniqueID, n);

but no luck until now....

Thanks...

<<>>

i'm doing this

        String ns = Context.NOTIFICATION_SERVICE;
        NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);

        int icon = R.drawable.notification_icon;
        CharSequence tickerText = "Ome TickerText"; 
        long when = System.currentTimeMillis();
        Context context = getApplicationContext();
        CharSequence contentTitle = "Some Title"; 
        CharSequence contentText = "Some Text"; 

        Intent notificationIntent = new Intent(context, LandingActivity.class);
        Bundle bundle = new Bundle();
        bundle.putString("title", "a title");
        bundle.putString("title2", "title number 2");
        bundle.putString("action", "tip");
        bundle.putString("greek", "somehting else");
        bundle.putInt("action_num", 2);
        notificationIntent.putExtras(bundle);
        alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
        contentIntent = PendingIntent.getActivity(Notifications.this, 0, notificationIntent, 0);

        Notification notification = new Notification(icon, tickerText, when);
        notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
        notification.defaults = Notification.DEFAULT_ALL;

        mNotificationManager.notify(UniqueID, notification);

        int hour = tp.getCurrentHour();
        int minutes = tp.getCurrentMinute();

        contentIntent = PendingIntent.getService(Notifications.this, 0, notificationIntent, 0);
        AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
        Calendar calendar = Calendar.getInstance();
        calendar.setTimeInMillis(System.currentTimeMillis());
        calendar.set(Calendar.HOUR_OF_DAY, hour);
        calendar.set(Calendar.MINUTE, minutes);
        calendar.set(Calendar.SECOND, 00);
        alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), contentIntent);

but no luckk...

any help please?

Answer 1

Use alarm manager and put your notification in NotifyService class

Intent myIntent = new Intent(Current.this , NotifyService.class);     
AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
pendingIntent = PendingIntent.getService(ThisApp.this, 0, myIntent, 0);
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, 12);
calendar.set(Calendar.MINUTE, 00);
calendar.set(Calendar.SECOND, 00);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY , pendingIntent);  //set repeating every 24 hours

Answer 2

I know this is an old question but I had a similar requirement and this is what I did. I found the difference between the current system time and the intended time for sending notification in millis and implemented a runnable inside an android service. The below code will come in the Notifyservice.

private Handler notificationTimer = new Handler() {
    @Override
    public void handleMessage(Message msg) {
        if(msg.what==0) {
                sendNotifications();
        }
        super.handleMessage(msg);
    }
};
private Runnable notificationCaller = new Runnable() {

    @Override
    public void run() {
        Message msg = notificationTimer.obtainMessage();
        msg.what = 0;
        notificationTimer.sendMessage(msg);
    }
};        


    Calendar calendar = Calendar.getInstance();
    Calendar timefornotification = Calendar.getInstance();
    timefornotification.set(Calendar.HOUR_OF_DAY, 12);
    timefornotification.set(Calendar.MINUTE, 30);
    timefornotification.set(Calendar.SECOND, 00);

    Long difference = calendar.getTimeInMillis() - timefornotification.getTimeInMillis();

    if(difference<0){
        notificationTimer.postDelayed(notificationCaller, -(difference));
    }
    else{
        notificationTimer.postDelayed(notificationCaller, difference);
    }

   public void sendNotifications(){
        ------Your code here-------
        notificationTimer.removeCallbacksAndMessages(null);
        notificationTimer.postDelayed(notificationCaller, 86400000);
        ------86400000 is one day. So it will repeat everyday-------
   }

You can then call a service from main class to run this in background.

   Intent service = new Intent(this, NotifyService.class);
    this.startService(service);