Como o Birthday Adapter funciona?

O Birthday Adapter cria um novo SyncAdapter em seu dispositivo Android, o qual sincroniza todos os eventos, como nascimentos, aniversários e assim por diante, de seus contatos para o calendário. Este calendário é exibido em sua aplicação de Calendário Android padrão.

Eu quero sincronizar os eventos em um calendário existente!

This is not the idea of this app. As you already have all birthdays in your contacts and synchronizing these into the cloud, it would be redundant to also synchronize a calendar with the same information. Instead use tools on your desktop pc to display the birthdays from your contacts in your calendar, like Birthday Adapter does. In Thunderbird this can be done with the Thunderbirthday Add-on.

Events are not shown in Androids calendar widget!

All-day events are not displayed at the day the event occurs on Android 4.0. This is fixed on Android 4.04.
See Android Bug 22365 for more information.

How often are contact events synchronized into the calendar?

This is done once a day and invoked by Android itself together with other synchronizations.

The synchronization isn't working!

Please check the following:

Help translating/report bugs

Please go to http://sufficientlysecure.org/birthday-adapter.