public void SetCustomView(Xamarin.Forms.View backgroundView, bool isForDestructive = false)
{
GetDefaultValuesIfNeeded();
//Convert Xamarin.Forms.View to a Native UIView
var defaultSize = new CGRect(0, 0, backgroundView.WidthRequest > 0 ? backgroundView.WidthRequest : 80, backgroundView.HeightRequest > 0 ? backgroundView.WidthRequest : 120);
var renderer = Platform.CreateRenderer(backgroundView);
renderer.NativeView.Frame = defaultSize;
renderer.NativeView.AutoresizingMask = UIViewAutoresizing.All;
renderer.NativeView.ContentMode = UIViewContentMode.ScaleToFill;
renderer.Element.Layout(defaultSize.ToRectangle());
var nativeView = renderer.NativeView;
nativeView.SetNeedsLayout();
//Convert UIView into a UIImage
UIGraphics.BeginImageContextWithOptions(nativeView.Bounds.Size, nativeView.Opaque, 0.0f);
nativeView.Layer.RenderInContext(UIGraphics.GetCurrentContext());
var nativeImage = UIGraphics.GetImageFromCurrentImageContext();
UIGraphics.EndImageContext();
SetNativeView(nativeImage, isForDestructive);
}
CGRect GetPopupPositionAndLayout()
{
if (string.IsNullOrEmpty(_currentPopup))
{
return(CGRect.Empty);
}
var popup = _popupBasePage.PopupViews [_currentPopup] as SlidePopupView;
// This should layout with LeftMargin, TopMargin, WidthRequest and HeightRequest
CGRect pos;
popup.CalucatePosition();
nfloat y = (nfloat)popup.TopMargin;
nfloat x = (nfloat)popup.LeftMargin;
nfloat width = (nfloat)(popup.WidthRequest <= 0 ? ScreenSizeHelper.ScreenWidth - popup.LeftMargin * 2 : popup.WidthRequest);
nfloat height = (nfloat)(popup.HeightRequest <= 0 ? ScreenSizeHelper.ScreenHeight - popup.TopMargin * 2 : popup.HeightRequest);
var scrollCounters = RecureFindScrolled(_pageRenderer.View);
if (scrollCounters.HasValue && popup.TargetControl != null)
{
x -= (nfloat)scrollCounters.Value.X;
y -= (nfloat)scrollCounters.Value.Y;
}
pos = new CGRect(x, y, width, height);
popup.Layout(pos.ToRectangle());
_popupNativeView.Frame = pos;
_popupNativeView.SetNeedsLayout();
return(pos);
}
private UIView ConvertFormsToNative(Xamarin.Forms.View view, CGRect size)
{
try
{
var renderer = Platform.GetRenderer(view);
renderer.NativeView.Frame = size;
renderer.NativeView.AutoresizingMask = UIViewAutoresizing.All;
renderer.NativeView.ContentMode = UIViewContentMode.ScaleToFill;
renderer.Element.Layout(size.ToRectangle());
var nativeView = renderer.NativeView;
nativeView.SetNeedsLayout();
return(nativeView);
}
catch (Exception e)
{
//CrashTracker.Track(e);
return(null);
}
}
CGRect GetPopupPositionAndLayout()
{
if (string.IsNullOrEmpty(_currentPopup))
{
return(CGRect.Empty);
}
var popup = _popupBasePage.PopupViews [_currentPopup] as SlidePopupView;
// This should layout with LeftMargin, TopMargin, WidthRequest and HeightRequest
CGRect pos;
popup.CalucatePosition();
nfloat y = (nfloat)popup.TopMargin;
nfloat x = (nfloat)popup.LeftMargin;
nfloat width = (nfloat)(popup.WidthRequest <= 0 ? ScreenSizeHelper.ScreenWidth - popup.LeftMargin * 2 : popup.WidthRequest);
nfloat height = (nfloat)(popup.HeightRequest <= 0 ? ScreenSizeHelper.ScreenHeight - popup.TopMargin * 2 : popup.HeightRequest);
pos = new CGRect(x, y, width, height);
popup.Layout(pos.ToRectangle());
_popupNativeView.Frame = pos;
_popupNativeView.SetNeedsLayout();
return(pos);
}
/// <summary>
/// Layouts the subviews.
/// </summary>
public override void LayoutSubviews()
{
base.LayoutSubviews();
CGRect frame = ContentView.Frame;
frame.X = (Bounds.Width - frame.Width) / 2;
frame.Y = (Bounds.Height - frame.Height) / 2;
ViewCell.View.Layout(frame.ToRectangle());
_view.Frame = frame;
}
CGPath?GetClipPath()
{
if (_shape != null)
{
var bounds = _bounds.ToRectangle();
var path = _shape.PathForBounds(bounds);
return(path?.AsCGPath());
}
return(null);
}
internal static void LayoutToSize(this IView view, double width, double height)
{
var platformFrame = new CGRect(0, 0, width, height);
if (view.Handler is IPlatformViewHandler viewHandler && viewHandler.PlatformView != null)
{
viewHandler.PlatformView.Frame = platformFrame;
}
view.Arrange(platformFrame.ToRectangle());
}
internal static Size LayoutToMeasuredSize(this IView view, double width, double height)
{
var size = view.Measure(width, height);
var platformFrame = new CGRect(0, 0, size.Width, size.Height);
if (view.Handler is IPlatformViewHandler viewHandler && viewHandler.PlatformView != null)
{
viewHandler.PlatformView.Frame = platformFrame;
}
view.Arrange(platformFrame.ToRectangle());
return(size);
}
public static UIView ConvertFormsToNative(View view, CGRect size, out IVisualElementRenderer renderer)
{
renderer = Platform.CreateRenderer(view);
renderer.NativeView.Frame = size;
renderer.NativeView.AutoresizingMask = UIViewAutoresizing.All;
renderer.NativeView.ContentMode = UIViewContentMode.ScaleToFill;
renderer.Element.Layout(size.ToRectangle());
var nativeView = renderer.NativeView;
nativeView.SetNeedsLayout();
return(nativeView);
}
public static UIView ConvertFormsToNative(this Xamarin.Forms.View view)
{
var renderer = view.GetOrCreateRenderer();
var size = new CGRect(view.X, view.Y, view.Width, view.Height);
renderer.NativeView.Frame = size;
renderer.NativeView.AutoresizingMask = UIViewAutoresizing.All;
renderer.NativeView.ContentMode = UIViewContentMode.ScaleToFill;
renderer.Element.Layout(size.ToRectangle());
var nativeView = renderer.NativeView;
nativeView.SetNeedsLayout();
return(nativeView);
}
// @see https://michaelridland.com/xamarin/creating-native-view-xamarin-forms-viewpage/
UIView viewToUIView(Xamarin.Forms.View view)
{
CGRect size = new CGRect(view.X, view.Y, view.Width, view.Height);
var renderer = Platform.CreateRenderer(view);
renderer.NativeView.Frame = size;
renderer.NativeView.AutoresizingMask = UIViewAutoresizing.All;
renderer.NativeView.ContentMode = UIViewContentMode.ScaleToFill;
renderer.Element.Layout(size.ToRectangle());
var nativeView = renderer.NativeView;
nativeView.SetNeedsLayout();
return(nativeView);
}
// Code taken from
// http://www.michaelridland.com/xamarin/creating-native-view-xamarin-forms-viewpage/
public static UIView ConvertFormsToNative(Xamarin.Forms.View view, CGRect size)
{
var renderer = Platform.CreateRenderer(view);
renderer.NativeView.Frame = size;
renderer.NativeView.AutoresizingMask = UIViewAutoresizing.All;
renderer.NativeView.ContentMode = UIViewContentMode.ScaleToFill;
renderer.Element.Layout (size.ToRectangle());
var nativeView = renderer.NativeView;
nativeView.SetNeedsLayout ();
return nativeView;
}
public static UIView ConvertToNative(this Xamarin.Forms.View view, CGRect size)
{
var renderer = Platform.CreateRenderer(view);
renderer.NativeView.Frame = size;
renderer.NativeView.Hidden = false;
renderer.NativeView.AutoresizingMask = UIViewAutoresizing.All;
renderer.NativeView.ContentMode = UIViewContentMode.ScaleToFill;
renderer.Element.Layout(size.ToRectangle());
var nativeView = renderer.NativeView;
nativeView.SetNeedsLayout();
return(nativeView);
}
//http://www.michaelridland.com/xamarin/creating-native-view-xamarin-forms-viewpage/
private static UIView ConvertFormsToNative(Xamarin.Forms.View view, CGRect size)
{
var renderer = Platform.CreateRenderer(view);
renderer.NativeView.Frame = size;
renderer.NativeView.AutoresizingMask = UIViewAutoresizing.All;
renderer.NativeView.ContentMode = UIViewContentMode.ScaleAspectFit;
renderer.Element.Layout(size.ToRectangle());
var nativeView = renderer.NativeView;
nativeView.SetNeedsLayout();
return(nativeView);
}
public UIView CreateCustomView(View customView, CGRect size)
{
var renderer = Platform.CreateRenderer(customView);
renderer.NativeView.Frame = size;
renderer.NativeView.AutoresizingMask = UIViewAutoresizing.All;
renderer.NativeView.ContentMode = UIViewContentMode.ScaleToFill;
renderer.Element.Layout(size.ToRectangle());
var nativeView = renderer.NativeView;
nativeView.SetNeedsLayout();
return(nativeView);
}
//https://michaelridland.com/xamarin/creating-native-view-xamarin-forms-viewpage/
private UIView ConvertFormsToNative(Picker view, CGRect size)
{
var renderer = Platform.GetRenderer(view);
renderer.NativeView.Frame = size;
//renderer.NativeView.AutoresizingMask = UIViewAutoresizing.None;
//renderer.NativeView.ContentMode = UIViewContentMode.Center;
renderer.Element.Layout(size.ToRectangle());
var nativeView = renderer.NativeView;
nativeView.SetNeedsDisplayInRect(size);
return(nativeView);
}
public static UIView ConvertFormsToNative(Xamarin.Forms.View view, CGRect size)
{
var renderer = RendererFactory.GetRenderer(view);
renderer.NativeView.Frame = size;
renderer.NativeView.AutoresizingMask = UIViewAutoresizing.All;
renderer.NativeView.ContentMode = UIViewContentMode.ScaleToFill;
renderer.Element.Layout(size.ToRectangle());
var nativeView = renderer.NativeView;
nativeView.SetNeedsLayout();
return(nativeView);
}
/// <summary>
/// Toucheses the moved.
/// </summary>
/// <param name="touches">The touches.</param>
/// <param name="evt">The evt.</param>
public override void TouchesMoved(NSSet touches, UIEvent evt)
{
base.TouchesMoved(touches, evt);
if (this.touchedView == null)
{
return;
}
var newLoc = ((UITouch)touches.First()).LocationInView(this);
var frame = new CGRect(
new CGPoint(newLoc.X - this.offsetLocation.X, newLoc.Y - this.offsetLocation.Y),
this.touchedView.Frame.Size);
if (this.touchedElement != null)
{
this.touchedElement.Layout(frame.ToRectangle());
}
}
public static UIView ToiOS(this Xamarin.Forms.View view, CGRect size)
{
if (Platform.GetRenderer(view) == null)
{
Platform.SetRenderer(view, Platform.CreateRenderer(view));
}
var vRenderer = Platform.GetRenderer(view);
vRenderer.NativeView.Frame = size;
vRenderer.NativeView.AutoresizingMask = UIViewAutoresizing.All;
vRenderer.NativeView.ContentMode = UIViewContentMode.ScaleToFill;
vRenderer.Element?.Layout(size.ToRectangle());
var nativeView = vRenderer.NativeView;
nativeView.SetNeedsLayout();
return(nativeView);
}
public override void TouchesMoved(NSSet touches, UIEvent evt)
{
base.TouchesMoved(touches, evt);
var t = touches.ToArray <UITouch>();
if (this.touchedView != null)
{
var newLoc = t[0].LocationInView(this);
var frame = new CGRect(
new CGPoint(newLoc.X - this.offsetLocation.X, newLoc.Y - this.offsetLocation.Y),
this.touchedView.Frame.Size);
if (this.touchedElement != null)
{
this.touchedElement.Layout(frame.ToRectangle());
}
//else
//{
// this.touchedView.Frame = frame;
//}
}
}
private static UIView ConvertFormsToNative(Xamarin.Forms.View view, CGRect size)
{
var renderer = RendererFactory.GetRenderer(view);
renderer.NativeView.Frame = size;
renderer.Element.Layout(size.ToRectangle());
var nativeView = renderer.NativeView;
nativeView.SetNeedsLayout();
return(nativeView);
}
public override void DrawRect(CGRect dirtyRect)
{
owner.OnPaint(dirtyRect.ToRectangle());
}
