title: Android Alarm Reminder
body: <p>I have an app which is loading upcoming dates (like Birthdays) from an <code>SQLite</code> database
  and showing it on a <code>ListView</code>. That works fine.
  What I now want is to inform the user regular by an <code>Alarm</code> or <code>Toast</code> or something without
  starting the application. The user has the only option when to inform: on the <strong>same day</strong> or <strong>1 day before</strong> and the <strong>time</strong>!
  Has someone an idea how to realize this? Maybe a <code>Service</code> or a <code>Timer</code>, or both?
  I would be very pleased about some tips.</p>