datetime - How schedule local notifications Android?

Question

I have a question about local notifications in Android. I am developing an application where in the first part I must receive all meetings of the company of my own server (this I have achieved), and the second part I must notify one day before each meeting, but with local notifications.

How to schedule local notifications at a given date?

Answer 1

To schedule local notification you need to know some of the things which are used to schedule the notification like

BroadcastReceivers IntentFilters AlarmManager NotificationService PendingIntent

In MainActivity do the following

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);

        Intent notificationIntent = new Intent("android.media.action.DISPLAY_NOTIFICATION");
        notificationIntent.addCategory("android.intent.category.DEFAULT");

        PendingIntent broadcast = PendingIntent.getBroadcast(this, 100, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);

        Calendar cal = Calendar.getInstance();
        cal.add(Calendar.SECOND, 15);
        alarmManager.setExact(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), broadcast);
    }

The above code will schedule an alarm after 15 seconds. After 15 seconds it will broadcast the notificationIntent.

The action specified in the Intent constructor is defined in the AndroidManifest.xml

To understand the full working of local notification and to see a sample notification code check out this article - http://www.singhajit.com/schedule-local-notification-in-android/