/// <summary>
/// Schedules an alarm.
/// </summary>
/// <param name="alarm">The alarm to be scheduled.</param>
public int ScheduleAlarm(Alarm alarm)
{
var scheduleTime = GetNextAlarmTime(alarm.Hour, alarm.Minute);
var utcTime = TimeZoneInfo.ConvertTimeToUtc(scheduleTime);
var epochDif = (new DateTime(1970, 1, 1) - DateTime.MinValue).TotalSeconds;
var notifyTimeInInMilliseconds = utcTime.AddSeconds(-epochDif).Ticks / 10000;
var intent = new Intent(context, typeof(AlarmIntentService));
intent.PutExtra("id", alarm.Id);
intent.PutExtra("year", alarm.Year);
intent.PutExtra("month", alarm.Month);
intent.PutExtra("day", alarm.Day);
intent.PutExtra("hour", alarm.Hour);
intent.PutExtra("minute", alarm.Minute);
intent.PutExtra("difficulty", alarm.Difficulty);
Android.Util.Log.Verbose("notifyFilter", $"register {alarm.Id}"); // adb logcat -s notifyFilter
PendingIntent pendingIntent;
if (Android.OS.Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.O)
{
pendingIntent = PendingIntent.GetForegroundService(context, alarm.Id, intent, PendingIntentFlags.UpdateCurrent);
}
else
{
pendingIntent = PendingIntent.GetService(context, alarm.Id, intent, PendingIntentFlags.UpdateCurrent);
}
// Set inexact repeating
alarmManager.SetExactAndAllowWhileIdle(AlarmType.RtcWakeup, notifyTimeInInMilliseconds, pendingIntent);
//alarmManager.SetRepeating(AlarmType.RtcWakeup, notifyTimeInInMilliseconds, AlarmManager.IntervalDay, pendingIntent);
return(alarm.Id);
}
/// <summary>
/// Cancels the scheduled alarm.
/// </summary>
/// <returns>The alarm to be canceled.</returns>
/// <param name="alarm">Alarm.</param>
public void CancelAlarm(Alarm alarm)
{
var intent = new Intent(context, typeof(AlarmIntentService));
PendingIntent pendingIntent;
if (Android.OS.Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.O)
{
pendingIntent = PendingIntent.GetForegroundService(context, alarm.Id, intent, PendingIntentFlags.UpdateCurrent);
}
else
{
pendingIntent = PendingIntent.GetService(context, alarm.Id, intent, PendingIntentFlags.UpdateCurrent);
}
alarmManager.Cancel(pendingIntent);
}
public static PendingIntent SafeGetForegroundService(this Context context, int requestCode, Intent intent, PendingIntentFlags flags)
=> OreoApis.AreAvailable
? PendingIntent.GetForegroundService(context, requestCode, intent, flags)
: PendingIntent.GetService(context, requestCode, intent, flags);