/// This is a hack. The issue is that the Carousel view doesn't reflect the CurrentStep binding correctly in the UI.
/// The viewmodel is correct. The position property on the CarouselView is correct. But during restarts
/// it still doesn't show the correct view template for that step. Instead it shows the last view template.
/// So here we scroll back and forth one step to get it to be in sync with the viewmodel.
private void UpdateUiStep()
{
this.uiDispatcher.BeginInvokeOnMainThread(() =>
{
RegistrationViewModel vm = GetViewModel <RegistrationViewModel>();
int step = vm.CurrentStep;
if (step < (int)RegistrationStep.Complete)
{
int otherStep;
if (step > 0)
{
otherStep = step - 1;
}
else
{
otherStep = step + 1;
}
vm.MuteStepSync();
this.CarouselView.ScrollTo(otherStep, position: ScrollToPosition.Center, animate: false);
this.CarouselView.ScrollTo(step, position: ScrollToPosition.Center, animate: false);
this.uiDispatcher.BeginInvokeOnMainThread(() => vm.UnMuteStepSync());
}
});
}