public SwipeTransitionInteractionController(UIScreenEdgePanGestureRecognizer gestureRecognizer, UIRectEdge edge)
{
GestureRecognizer = gestureRecognizer;
Edge = edge;
GestureRecognizer.AddTarget(() => GestureRecognizeDidUpdate(GestureRecognizer));
}
public static void AddBorder(this UIView view, UIRectEdge edge, UIColor color, nfloat thickness) {
var border = new CALayer ();
var f = view.Frame;
switch(edge)
{
case UIRectEdge.Top:
border.Frame = new CGRect(0, 0, f.Width, thickness);
break;
case UIRectEdge.Bottom:
border.Frame = new CGRect (0, f.Height - thickness, f.Width, thickness);
break;
case UIRectEdge.Left:
border.Frame = new CGRect(0, 0, thickness, f.Height);
break;
case UIRectEdge.Right:
border.Frame = new CGRect(f.Width - thickness, 0, thickness, f.Height);
break;
default:
break;
}
border.BackgroundColor = color.CGColor;
view.Layer.AddSublayer (border);
}
public static void AddBorder(this UIView view, UIRectEdge edge, UIColor color,
nfloat thickness, float radius = 0.0f)
{
var border = new CALayer();
var f = view.Frame;
switch (edge)
{
case UIRectEdge.Top:
border.Frame = new CGRect(0, 0, f.Width, thickness);
break;
case UIRectEdge.Bottom:
border.Frame = new CGRect(0, f.Height - thickness, f.Width, thickness);
break;
case UIRectEdge.Left:
border.Frame = new CGRect(0, 0, thickness, f.Height);
break;
case UIRectEdge.Right:
border.Frame = new CGRect(f.Width - thickness, 0, thickness, f.Height);
break;
default:
break;
}
if (radius > 0)
{
border.CornerRadius = radius;
}
border.BackgroundColor = color.CGColor;
view.Layer.AddSublayer(border);
}
public static void SetEdgesForExtendedLayout(
this UIViewController viewController, UIRectEdge edgesForExtendedLayout = UIRectEdge.All)
{
if (viewController.RespondsToSelector(new Selector("setEdgesForExtendedLayout:")))
{
viewController.EdgesForExtendedLayout = edgesForExtendedLayout;
}
}
/// <summary>
/// Adds borders (as UIViews) to a view.
/// </summary>
/// <param name="view">The view to add the borders to.</param>
/// <param name="edges">The edges to add borders to.</param>
/// <param name="borderColor">The color of the borders.</param>
/// <param name="thickness">The thickness of the borders.</param>
public static void AddBordersToView(this UIView view, UIRectEdge edges, UIColor borderColor, float thickness = 1)
{
if (edges.HasFlag(UIRectEdge.Top) || edges.HasFlag(UIRectEdge.All))
{
var top = GetBorderView(borderColor);
view.Add(top);
view.AddConstraints(new[] {
NSLayoutConstraint.Create(top, NSLayoutAttribute.Top, NSLayoutRelation.Equal, view, NSLayoutAttribute.Top, 1, -thickness),
NSLayoutConstraint.Create(top, NSLayoutAttribute.Left, NSLayoutRelation.Equal, view, NSLayoutAttribute.Left, 1, 0),
NSLayoutConstraint.Create(top, NSLayoutAttribute.Right, NSLayoutRelation.Equal, view, NSLayoutAttribute.Right, 1, 0),
NSLayoutConstraint.Create(top, NSLayoutAttribute.Height, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, thickness)
});
}
if (edges.HasFlag(UIRectEdge.Right) || edges.HasFlag(UIRectEdge.All))
{
var right = GetBorderView(borderColor);
view.Add(right);
view.AddConstraints(new[] {
NSLayoutConstraint.Create(right, NSLayoutAttribute.Top, NSLayoutRelation.Equal, view, NSLayoutAttribute.Top, 1, 0),
NSLayoutConstraint.Create(right, NSLayoutAttribute.Bottom, NSLayoutRelation.Equal, view, NSLayoutAttribute.Bottom, 1, 0),
NSLayoutConstraint.Create(right, NSLayoutAttribute.Right, NSLayoutRelation.Equal, view, NSLayoutAttribute.Right, 1, thickness),
NSLayoutConstraint.Create(right, NSLayoutAttribute.Width, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, thickness)
});
}
if (edges.HasFlag(UIRectEdge.Bottom) || edges.HasFlag(UIRectEdge.All))
{
var bottom = GetBorderView(borderColor);
view.Add(bottom);
view.AddConstraints(new[] {
NSLayoutConstraint.Create(bottom, NSLayoutAttribute.Bottom, NSLayoutRelation.Equal, view, NSLayoutAttribute.Bottom, 1, thickness),
NSLayoutConstraint.Create(bottom, NSLayoutAttribute.Left, NSLayoutRelation.Equal, view, NSLayoutAttribute.Left, 1, 0),
NSLayoutConstraint.Create(bottom, NSLayoutAttribute.Right, NSLayoutRelation.Equal, view, NSLayoutAttribute.Right, 1, 0),
NSLayoutConstraint.Create(bottom, NSLayoutAttribute.Height, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, thickness)
});
}
if (edges.HasFlag(UIRectEdge.Left) || edges.HasFlag(UIRectEdge.All))
{
var left = GetBorderView(borderColor);
view.Add(left);
view.AddConstraints(new[] {
NSLayoutConstraint.Create(left, NSLayoutAttribute.Top, NSLayoutRelation.Equal, view, NSLayoutAttribute.Top, 1, 0),
NSLayoutConstraint.Create(left, NSLayoutAttribute.Bottom, NSLayoutRelation.Equal, view, NSLayoutAttribute.Bottom, 1, 0),
NSLayoutConstraint.Create(left, NSLayoutAttribute.Left, NSLayoutRelation.Equal, view, NSLayoutAttribute.Left, 1, -thickness),
NSLayoutConstraint.Create(left, NSLayoutAttribute.Width, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, thickness)
});
}
}
public static UIView InsertSeparator(this UIView self, UIRectEdge edge = UIRectEdge.Bottom)
{
var thickness = 1 / UIScreen.MainScreen.Scale;
var separator = new UIView();
separator.BackgroundColor = ColorAssets.Separator;
self.AddSubview(separator);
separator.TranslatesAutoresizingMaskIntoConstraints = false;
switch (edge)
{
case UIRectEdge.Top:
separator.TopAnchor.ConstraintEqualTo(self.TopAnchor).Active = true;
separator.LeftAnchor.ConstraintEqualTo(self.LeftAnchor).Active = true;
separator.RightAnchor.ConstraintEqualTo(self.RightAnchor).Active = true;
separator.HeightAnchor.ConstraintEqualTo(thickness).Active = true;
break;
case UIRectEdge.Bottom:
separator.BottomAnchor.ConstraintEqualTo(self.BottomAnchor, -thickness).Active = true;
separator.LeftAnchor.ConstraintEqualTo(self.LeftAnchor).Active = true;
separator.RightAnchor.ConstraintEqualTo(self.RightAnchor).Active = true;
separator.HeightAnchor.ConstraintEqualTo(thickness).Active = true;
break;
case UIRectEdge.Left:
separator.LeftAnchor.ConstraintEqualTo(self.LeftAnchor).Active = true;
separator.BottomAnchor.ConstraintEqualTo(self.BottomAnchor).Active = true;
separator.TopAnchor.ConstraintEqualTo(self.TopAnchor).Active = true;
separator.WidthAnchor.ConstraintEqualTo(thickness).Active = true;
break;
case UIRectEdge.Right:
separator.RightAnchor.ConstraintEqualTo(self.RightAnchor).Active = true;
separator.BottomAnchor.ConstraintEqualTo(self.BottomAnchor).Active = true;
separator.TopAnchor.ConstraintEqualTo(self.TopAnchor).Active = true;
separator.WidthAnchor.ConstraintEqualTo(thickness).Active = true;
break;
default:
throw new ArgumentOutOfRangeException(nameof(edge), edge, null);
}
return(separator);
}
public void HandlePresentMenuPan(UIPanGestureRecognizer pan)
{
// how much distance have we panned in reference to the parent view?
var view = viewControllerForPresentedMenu != null ? viewControllerForPresentedMenu?.View : pan.View;
if (view == null)
{
return;
}
var transform = view.Transform;
view.Transform = CoreGraphics.CGAffineTransform.MakeIdentity();
var translation = pan.TranslationInView(pan.View);
view.Transform = transform;
// do some math to translate this to a percentage based value
if (!interactive)
{
if (translation.X == 0)
{
return; // not sure which way the user is swiping yet, so do nothing
}
if (!(pan is UIScreenEdgePanGestureRecognizer))
{
this.PresentDirection = translation.X > 0 ? UIRectEdge.Left : UIRectEdge.Right;
}
var menuViewController = SideMenuManager.LeftNavigationController;
if (menuViewController != null && visibleViewController != null)
{
interactive = true;
visibleViewController.PresentViewController(menuViewController, true, null);
}
}
var direction = this.PresentDirection == UIRectEdge.Left ? 1 : -1;
var distance = translation.X / SideMenuManager.MenuWidth;
// now lets deal with different states that the gesture recognizer sends
switch (pan.State)
{
case UIGestureRecognizerState.Began:
case UIGestureRecognizerState.Changed:
if (pan is UIScreenEdgePanGestureRecognizer)
{
this.UpdateInteractiveTransition((float)Math.Min(distance * direction, 1));
}
else if (distance > 0 && this.PresentDirection == UIRectEdge.Right && SideMenuManager.LeftNavigationController != null)
{
this.PresentDirection = UIRectEdge.Left;
switchMenus = true;
this.CancelInteractiveTransition();
}
else
{
this.UpdateInteractiveTransition((float)Math.Min(distance * direction, 1));
}
break;
default:
interactive = false;
view.Transform = CGAffineTransform.MakeIdentity();
var velocity = pan.VelocityInView(pan.View).X *direction;
view.Transform = transform;
if (velocity >= 100 || velocity >= -50 && Math.Abs(distance) >= 0.5)
{
//TODO: Review this... Uses FLT_EPSILON
//// bug workaround: animation briefly resets after call to finishInteractiveTransition() but before animateTransition completion is called.
//if (NSProcessInfo.ProcessInfo.OperatingSystemVersion.Major == 8 && this.percentComplete > 1f - 1.192092896e-07F) {
// this.updateInteractiveTransition(0.9999);
//}
this.FinishInteractiveTransition();
}
else
{
this.CancelInteractiveTransition();
}
break;
}
}
public void HandlePresentMenuRightScreenEdge(UIScreenEdgePanGestureRecognizer edge)
{
this.PresentDirection = UIRectEdge.Right;
HandlePresentMenuPan(edge);
}
public SlideTransitionAnimator(UIRectEdge edge)
{
targetEdge = edge;
}
public static void SetEdgesForExtendedLayout(
this UIViewController viewController, UIRectEdge edgesForExtendedLayout = UIRectEdge.All)
{
if (viewController.RespondsToSelector(new Selector("setEdgesForExtendedLayout:")))
viewController.EdgesForExtendedLayout = edgesForExtendedLayout;
}
// This constructor aint probably needed.
public MyPhoneMasterDetailRenderer(UIRectEdge edge)
{
swipeEdge = edge;
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
EdgesForExtendedLayout = new UIRectEdge();
}
/// <summary>
/// UIView with the colored border for target edges.
/// </summary>
/// <returns>UIView with border.</returns>
/// <param name="view">Target view.</param>
/// <param name="borderWidth">Border width.</param>
/// <param name="borderColor">Border color.</param>
/// <param name="edge">Border edge.</param>
public static UIView WithBorder(this UIView view, nfloat borderWidth, CGColor borderColor, UIRectEdge edge)
{
if (edge == UIRectEdge.None)
{
return(view);
}
if (edge.HasFlag(UIRectEdge.All))
{
return(WithBorder(view, borderWidth, borderColor));
}
if (edge.HasFlag(UIRectEdge.Top))
{
AddBorder(
view,
borderColor,
UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleBottomMargin,
new CGRect(0, 0, view.Frame.Size.Width, borderWidth));
}
if (edge.HasFlag(UIRectEdge.Bottom))
{
AddBorder(
view,
borderColor,
UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleTopMargin,
new CGRect(0, view.Frame.Size.Height - borderWidth, view.Frame.Size.Width, borderWidth));
}
if (edge.HasFlag(UIRectEdge.Left))
{
AddBorder(
view,
borderColor,
UIViewAutoresizing.FlexibleHeight | UIViewAutoresizing.FlexibleRightMargin,
new CGRect(0, 0, borderWidth, view.Frame.Size.Height));
}
if (edge.HasFlag(UIRectEdge.Right))
{
AddBorder(
view,
borderColor,
UIViewAutoresizing.FlexibleHeight | UIViewAutoresizing.FlexibleLeftMargin,
new CGRect(view.Frame.Size.Width - borderWidth, 0, borderWidth, view.Frame.Size.Height));
}
return(view);
}
public void SetPreferredScreenEdgesDeferringSystemGestures(UIRectEdge rectEdge)
{
preferredScreenEdgesDeferringSystemGestures = rectEdge;
SetNeedsUpdateOfScreenEdgesDeferringSystemGestures();
}
