private static async Task MoveToSide(CustomPageAnimation leftPage, CustomPageAnimation rightPage, bool goingForward)
{
// Clear the background colors
Color pageBackgroundColor = rightPage.Page.BackgroundColor;
rightPage.Page.BackgroundColor = Color.Transparent;
Color pageRootBackgroundColor = rightPage.PageRootCache.View.BackgroundColor;
rightPage.PageRootCache.View.BackgroundColor = Color.Transparent;
// Hide the footer
double opacity = rightPage.PageFooter.Opacity;
rightPage.PageFooter.Opacity = 0;
// Animate
await Task.WhenAll(leftPage.MoveToSide(false, !goingForward), rightPage.MoveToSide(true, goingForward));
// Restore the footer
rightPage.PageFooter.Opacity = opacity;
// Restore the background colors
rightPage.Page.BackgroundColor = pageBackgroundColor;
rightPage.PageRootCache.View.BackgroundColor = pageRootBackgroundColor;
}
public void Preparing(View _, PopupPage page)
{
// Get the previous page's animation
IReadOnlyList <PopupPage> stack = PopupNavigation.Instance.PopupStack;
PreviousPageAnimation = stack.Count > 1 ? stack[stack.Count - 2]?.Animation as CustomPageAnimation : null;
// Create the caches
Page = page as CustomPage;
CreateCaches();
// Get the footer element
PageFooter = Page.GetTemplateChild("PageFooter") as View;
// Hide the page
Page.IsVisible = false;
}
public CustomPage(bool showTopMargin = false, LayoutAlignment footerLogoHorizontalOptions = LayoutAlignment.Start, bool showMinimumContents = false, double topMargin = -1, int cornersRadius = 0)
{
Animation = new CustomPageAnimation();
if (!showTopMargin)
{
BackgroundColor = Color.Transparent;
}
ShowTopMargin = showTopMargin;
FooterLogoHorizontalOptions = footerLogoHorizontalOptions;
ShowMinimumContents = showMinimumContents;
CornersRadius = cornersRadius;
if (topMargin > 0)
{
TopMargin = topMargin;
}
if (Device.RuntimePlatform == Device.iOS)
{
HasSystemPadding = false;
}
}