'androidAllowWhileIdle' is deprecated

[mohamadtout]

'androidAllowWhileIdle' is deprecated and shouldn't be used. Deprecated in favor of the androidScheduleMode parameter.
Try replacing the use of the deprecated member with the replacement.

For androidScheduleMode there is 5 possible values, shown below from the official file

enum AndroidScheduleMode {
  /// Used to specify that the notification should be scheduled to be shown at
  /// the exact time specified AND will execute whilst device is in
  /// low-power idle mode. Requires SCHEDULE_EXACT_ALARM permission.
  alarmClock,

  /// Used to specify that the notification should be scheduled to be shown at
  /// the exact time specified but may not execute whilst device is in
  /// low-power idle mode.
  exact,

  /// Used to specify that the notification should be scheduled to be shown at
  /// the exact time specified and will execute whilst device is in
  /// low-power idle mode.
  exactAllowWhileIdle,

  /// Used to specify that the notification should be scheduled to be shown at
  /// at roughly specified time but may not execute whilst device is in
  /// low-power idle mode.
  inexact,

  /// Used to specify that the notification should be scheduled to be shown at
  /// at roughly specified time and will execute whilst device is in
  /// low-power idle mode.
  inexactAllowWhileIdle,
}

In my use_case, i found replacing androidAllowWhileIdle: true, with androidScheduleMode: AndroidScheduleMode.exactAllowWhileIdle, to be the ideal switch but your mileage might vary