/**
* Called at system startup, on time/timezone change, and whenever the user changes alarm
* settings. Activates snooze if set, otherwise loads all alarms, activates next alert.
*/
public static void setNextAlert(final Context context) {
if (!enableSnoozeAlert(context)) {
Alarm alarm = calculateNextAlert(context);
if (alarm != null) {
enableAlert(context, alarm, alarm.time);
} else {
disableAlert(context);
}
}
}
/**
* If there is a snooze set, enable it in AlarmManager
*
* @return true if snooze is set
*/
private static boolean enableSnoozeAlert(final Context context) {
SharedPreferences prefs = context.getSharedPreferences(PREFERENCES, 0);
int id = prefs.getInt(PREF_SNOOZE_ID, -1);
if (id == -1) {
return false;
}
long time = prefs.getLong(PREF_SNOOZE_TIME, -1);
// Get the alarm from the db.
final Alarm alarm = getAlarm(context.getContentResolver(), id);
if (alarm == null) {
return false;
}
// The time in the database is either 0 (repeating) or a specific time
// for a non-repeating alarm. Update this value so the AlarmReceiver
// has the right time to compare.
alarm.time = time;
enableAlert(context, alarm, time);
return true;
}