private async Task TransitionBackward(
AlternativePage currentPage,
AlternativePage newPage,
ContentPresenter previousPagePresenter,
ContentPresenter newPagePresenter)
{
var transition = currentPage != null ? (currentPage.PageTransition ?? this.PageTransition) : this.PageTransition;
if (transition != null)
{
if (currentPage != null)
{
await currentPage.OnTransitioningFromInternal();
}
if (newPage != null)
{
await newPage.OnTransitioningToInternal();
}
await transition.TransitionBackward(previousPagePresenter, newPagePresenter);
if (currentPage != null)
{
await currentPage.OnTransitionedFromInternal();
}
if (newPage != null)
{
await newPage.OnTransitionedToInternal();
}
}
}
private async Task TransitionBackward(
AlternativePage currentPage,
AlternativePage newPage,
ContentPresenter previousPagePresenter,
ContentPresenter newPagePresenter)
{
var transition = currentPage != null ? (currentPage.PageTransition ?? this.PageTransition) : this.PageTransition;
if (transition != null)
{
if (currentPage != null)
{
await currentPage.OnTransitioningFromInternal();
}
if (newPage != null)
{
await newPage.OnTransitioningToInternal();
}
await transition.TransitionBackward(previousPagePresenter, newPagePresenter);
if (currentPage != null)
{
await currentPage.OnTransitionedFromInternal();
}
if (newPage != null)
{
await newPage.OnTransitionedToInternal();
}
}
}
