protected override void OnDisappearing()
{
if (_syncIndicator)
{
MessagingCenter.Unsubscribe <Application, bool>(Application.Current, "SyncCompleted");
MessagingCenter.Unsubscribe <Application>(Application.Current, "SyncStarted");
}
if (_syncIndicator)
{
IsBusy = false;
}
if (_updateActivity)
{
_lockService.UpdateLastActivity();
}
base.OnDisappearing();
_deviceActionService.DismissKeyboard();
}