void LayoutChildren(bool animated)
{
var frame = Element.Bounds.ToRectangleF();
var flyoutFrame = frame;
nfloat opacity = 1;
flyoutFrame.Width = (int)(Math.Min(flyoutFrame.Width, flyoutFrame.Height) * 0.8);
var detailRenderer = Platform.GetRenderer(FlyoutPage.Detail);
if (detailRenderer == null)
{
return;
}
var detailView = detailRenderer.ViewController.View;
var isRTL = (Element as IVisualElementController)?.EffectiveFlowDirection.IsRightToLeft() == true;
if (isRTL)
{
flyoutFrame.X = (int)(flyoutFrame.Width * .25);
}
_flyoutController.View.Frame = flyoutFrame;
var target = frame;
if (Presented)
{
target.X += flyoutFrame.Width;
if (_applyShadow)
{
opacity = 0.5f;
}
}
if (isRTL)
{
target.X = target.X * -1;
}
if (animated)
{
UIView.BeginAnimations("Flyout");
var view = _detailController.View;
view.Frame = target;
detailView.Layer.Opacity = (float)opacity;
UIView.SetAnimationCurve(UIViewAnimationCurve.EaseOut);
UIView.SetAnimationDuration(250);
UIView.CommitAnimations();
}
else
{
_detailController.View.Frame = target;
detailView.Layer.Opacity = (float)opacity;
}
FlyoutPageController.FlyoutBounds = new Rectangle(flyoutFrame.X, 0, flyoutFrame.Width, flyoutFrame.Height);
FlyoutPageController.DetailBounds = new Rectangle(0, 0, frame.Width, frame.Height);
if (Presented)
{
_clickOffView.Frame = _detailController.View.Frame;
}
}
public override UIViewController ChildViewControllerForStatusBarHidden()
{
return((UIViewController)Platform.GetRenderer(Platform.Page));
}
public void SetCustomContent(View content)
{
if (content == Content)
{
return;
}
removeScolledEvent?.Invoke();
removeScolledEvent = null;
if (Content != null)
{
var oldRenderer = Platform.GetRenderer(Content);
var oldContentView = ContentView;
var oldContent = Content;
Content = null;
ContentView = null;
oldContent.ClearValue(Platform.RendererProperty);
oldContentView?.RemoveFromSuperview();
oldRenderer?.Dispose();
}
// If the user hasn't defined custom content then only the ContentView is set
else if (ContentView != null)
{
var oldContentView = ContentView;
ContentView = null;
oldContentView.RemoveFromSuperview();
}
Content = content;
if (Content != null)
{
var renderer = Platform.CreateRenderer(Content);
ContentView = renderer.NativeView;
Platform.SetRenderer(Content, renderer);
ContentView.ClipsToBounds = true;
// not sure if there's a more efficient way to do this
// I can test the native control to see if it inherits from UIScrollView
// But the CollectionViewRenderer doesn't inherit from UIScrollView
if (Content is ScrollView sv)
{
sv.Scrolled += ScrollViewScrolled;
removeScolledEvent = () => sv.Scrolled -= ScrollViewScrolled;
void ScrollViewScrolled(object sender, ScrolledEventArgs e) =>
OnScrolled((nfloat)sv.ScrollY);
}
else if (Content is CollectionView cv)
{
cv.Scrolled += CollectionViewScrolled;
removeScolledEvent = () => cv.Scrolled -= CollectionViewScrolled;
void CollectionViewScrolled(object sender, ItemsViewScrolledEventArgs e) =>
OnScrolled((nfloat)e.VerticalOffset);
}
else if (Content is ListView lv)
{
lv.Scrolled += ListViewScrolled;
removeScolledEvent = () => lv.Scrolled -= ListViewScrolled;
void ListViewScrolled(object sender, ScrolledEventArgs e) =>
OnScrolled((nfloat)e.ScrollY);
}
}
}
