public static void DisposeModelAndChildrenRenderers(this VisualElement view)
{
IVisualElementRenderer renderer;
foreach (var child in view.Descendants().OfType <VisualElement>())
{
renderer = XFPlatform.GetRenderer(child);
XFPlatform.SetRenderer(child, null);
if (renderer == null)
{
continue;
}
renderer.NativeView.RemoveFromSuperview();
renderer.Dispose();
}
renderer = XFPlatform.GetRenderer(view);
if (renderer != null)
{
renderer.NativeView.RemoveFromSuperview();
renderer.Dispose();
}
XFPlatform.SetRenderer(view, null);
}
/// <summary>
/// Updates the master detail containers.
/// </summary>
void UpdateMasterDetailContainers()
{
//((MasterDetailPage)Element).Master.PropertyChanged -= HandleMasterPropertyChanged;
EmptyContainers();
if (CurrentPlatform.GetRenderer(((MasterDetailPage)Element).Master) == null)
{
CurrentPlatform.SetRenderer(((MasterDetailPage)Element).Master, CurrentPlatform.CreateRenderer(((MasterDetailPage)Element).Master));
}
if (CurrentPlatform.GetRenderer(((MasterDetailPage)Element).Detail) == null)
{
CurrentPlatform.SetRenderer(((MasterDetailPage)Element).Detail, CurrentPlatform.CreateRenderer(((MasterDetailPage)Element).Detail));
}
var masterRenderer = CurrentPlatform.GetRenderer(((MasterDetailPage)Element).Master);
var detailRenderer = CurrentPlatform.GetRenderer(((MasterDetailPage)Element).Detail);
//((MasterDetailPage)Element).Master.PropertyChanged += HandleMasterPropertyChanged;
this.MenuViewController.View.AddSubview(masterRenderer.NativeView);
this.MenuViewController.AddChildViewController(masterRenderer.ViewController);
this.RootViewController.View.AddSubview(detailRenderer.NativeView);
this.RootViewController.AddChildViewController(detailRenderer.ViewController);
SetNeedsStatusBarAppearanceUpdate();
}
public static IVisualElementRenderer GetOrCreateRenderer(this VisualElement bindable)
{
var renderer = XFPlatform.GetRenderer(bindable);
if (renderer == null)
{
renderer = XFPlatform.CreateRenderer(bindable);
XFPlatform.SetRenderer(bindable, renderer);
}
return(renderer);
}
public override UIViewController ChildViewControllerForStatusBarHidden()
{
if (((MasterDetailPage)Element).Detail != null)
{
return((UIViewController)CurrentPlatform.GetRenderer(((MasterDetailPage)Element).Detail));
}
else
{
return(base.ChildViewControllerForStatusBarHidden());
}
}
void SetupPage(Page page, int index)
{
IVisualElementRenderer renderer = Platform.GetRenderer(page);
if (renderer == null)
{
renderer = Platform.CreateRenderer(page);
Platform.SetRenderer(page, renderer);
}
page.PropertyChanged -= OnPagePropertyChanged;
page.PropertyChanged += OnPagePropertyChanged;
}
public static UIViewController CreateViewController(this Page page)
{
if (!Forms.IsInitialized)
{
throw new InvalidOperationException("call Forms.Init() before this");
}
if (!(page.RealParent is Application))
{
Application app = new EmbeddedApplication();
app.MainPage = page;
}
var result = new Platform.iOS.Platform();
result.SetPage(page);
return(result.ViewController);
}
void SetControllers()
{
var list = new List <UIViewController>();
var titles = new List <string>();
for (var i = 0; i < Tabbed.Children.Count; i++)
{
var child = Tabbed.Children[i];
//var width = DeviceDisplay.MainDisplayInfo.Width - 64;
//child.WidthRequest = width;
//var v = child as VisualElement;
//if (v == null)
// continue;
var renderer = Platform.GetRenderer(child);
if (renderer == null)
{
continue;
}
//var frameOld = renderer.ViewController.View.Frame;
//frameOld.Width = (nfloat)width;
//renderer.ViewController.View.Frame = frameOld;
list.Add(renderer.ViewController);
titles.Add(Tabbed.Children[i].Title);
}
ViewControllers = list.ToArray();
var menuitems = Tabbed.Children.Select(x => new Shared.MenuItem()
{
Title = x.Title,
IconImageSource = x.IconImageSource
}).ToList();
TabBar.SetData(menuitems);
}
void TeardownPage(Page page, int index)
{
page.PropertyChanged -= OnPagePropertyChanged;
Platform.SetRenderer(page, null);
}
UIViewController GetViewController(Page page)
{
var renderer = Platform.GetRenderer(page);
return(renderer?.ViewController);
}
public void SetElement(VisualElement element)
{
//--------------------------------------------
// Initialize vars
//--------------------------------------------
if (this._tracker == null)
{
_tracker = new VisualElementTracker(this);
}
if (this._events == null)
{
_events = new EventTracker(this);
_events.LoadEvents(View);
}
//--------------------------------------------
// Reset the old element
//--------------------------------------------
var oldElement = this.Element;
if (oldElement != null)
{
oldElement.SizeChanged -= PageOnSizeChanged;
oldElement.PropertyChanged -= HandlePropertyChanged;
}
//--------------------------------------------
// Assign the new element
//--------------------------------------------
this.Element = element;
this.Element.SizeChanged += PageOnSizeChanged;
this.Element.PropertyChanged += HandlePropertyChanged;
this.Presented = ((MasterDetailPage)Element).IsPresented;
//--------------------------------------------
// Setup the root and menu view controller
//--------------------------------------------
this.RootViewController = new ChildViewController();
this.LeftViewController = new ChildViewController();
this.RightViewController = new ChildViewController();
//--------------------------------------------
// Fire the element changed event
//--------------------------------------------
OnElementChanged(new VisualElementChangedEventArgs(oldElement, element));
//--------------------------------------------
// Update the view
//--------------------------------------------
/* Master Detail Container */
UpdateMasterDetailContainers();
/* Background */
UpdateBackground();
/* Menu Background */
UpdateMenuBackground();
/* Menu Width */
UpdateMenuWidth();
/* Menu Presentation Style */
UpdateMenuPresentationStyle();
/* Swipe Range */
UpdateSwipeRange();
//--------------------------------------------
// Attempt to automatically create a menu click event
//--------------------------------------------
var detailRenderer = CurrentPlatform.GetRenderer((element as MasterDetailPage).Detail) as UINavigationController;
if (detailRenderer != null)
{
UIViewController firstPage = detailRenderer?.ViewControllers.FirstOrDefault();
firstPage.NavigationItem.LeftBarButtonItem.Clicked += HandleMenuIcon_Clicked;
}
//EffectUtilities.RegisterEffectControlProvider(this, oldElement, element);
//if (element != null)
// element.SendViewInitialized(NativeView);
}