public static bool DisplayViewController(this UINavigationController navController, UIViewController viewController, bool animate)
{
// Crashed with error in Linq,
//UIViewController found = navController.ViewControllers.First(v => v == viewController);
bool found = false;
foreach (var vc in navController.ViewControllers)
{
if (vc == viewController)
{
found = true;
break;
}
}
if (found)
{
navController.PopToViewController(viewController, animate);
}
else
{
navController.PushViewController(viewController, animate);
}
return(true);
}
public void NavigateToModal <TViewModel>()
{
var viewModel = Locator.Resolve <TViewModel>();
var viewController = GetViewController(viewModel);
_navigationController.PopToViewController(viewController, false);
}
public override void ChangePresentation(MvxPresentationHint hint)
{
var closeHint = hint as MvxClosePresentationHint;
if (closeHint != null)
{
if (_currentModal != null)
{
((UIViewController)_currentModal).DismissViewController(true, null);
return;
}
for (int i = _generalNavigationController.ViewControllers.Length - 1; i >= 1; i--)
{
var vc = _generalNavigationController.ViewControllers[i];
var touchView = vc as IMvxTouchView;
if (touchView != null && touchView.ViewModel == closeHint.ViewModelToClose)
{
_generalNavigationController.PopToViewController(_generalNavigationController.ViewControllers[i - 1], true);
return;
}
}
//If it didnt trigger above it's because it was probably the root.
_generalNavigationController.PopToRootViewController(true);
}
}
/// <summary>
/// Navigate to a view controller instance.
/// </summary>
/// <param name="viewController"></param>
/// <param name="animated"></param>
private void Navigate(UIViewController viewController, bool animated = false)
{
if (Object.ReferenceEquals(navigationContext.TopViewController, viewController))
{
return;
}
if (navigationContext.ViewControllers != null)
{
foreach (var stackViewController in navigationContext.ViewControllers)
{
if (Object.ReferenceEquals(stackViewController, viewController))
{
navigationContext.PopToViewController(viewController, animated);
return;
}
}
}
navigationContext.PushViewController(viewController, animated);
}
private bool PopToViewController(UINavigationController navigationController, Type type, bool animated)
{
foreach (var viewController in navigationController.ViewControllers)
{
if (viewController.GetType() == type)
{
navigationController.PopToViewController(viewController, animated);
return(true);
}
}
return(false);
}
public void NavigateToMaster(UIViewController vc)
{
// first time through!
if (_splitViewController == null && _masterNavigationController == null)
{
Init(vc);
}
else
{
bool contains = _masterNavigationController.ViewControllers.Contains(vc);
if (contains)
{
_masterNavigationController.PopToViewController(vc, true);
}
else
{
_masterNavigationController.PushViewController(vc, true);
}
}
}
public override void Execute(CallbackActionWaiter callbackActionWaiter, bool animated)
{
UINavigationController navigationController = (UINavigationController)HostStack.Host;
List <UIViewController> vcs = navigationController.ViewControllers.ToList();
if (CountToPop == 1)
{
UIViewController poppedViewController = vcs[vcs.Count - 1];
callbackActionWaiter.Add(() => poppedViewController.SafeDispose());
navigationController.PopViewController(animated);
}
else
{
int popToIndex = vcs.Count - 1 - CountToPop;
navigationController.PopToViewController(vcs[popToIndex], animated);
callbackActionWaiter.Add(() =>
{
for (int i = popToIndex + 1; i < vcs.Count; ++i)
{
vcs[i].SafeDispose();
}
});
}
}
public void PopToLayer(iLayer layer)
{
var display = NavigationController.ViewControllers.OfType <IMXView>().First(vc => layer.Equals(vc.GetModel()));
NavigationController.PopToViewController(display as UIViewController, true);
}
public override void PushViewController(UIViewController viewController, bool animated)
{
if (ViewControllers.Length <= 0)
{
// NOTE: pushViewController is called by init(rootViewController: UIViewController)
// so we must perform the normal super method in this case.
base.PushViewController(viewController, animated: true);
return;
}
UINavigationController presentingViewController = null;
if (PresentingViewController is UINavigationController)
{
presentingViewController = PresentingViewController as UINavigationController;
}
else if (PresentingViewController is UITabBarController)
{
presentingViewController = ((UITabBarController)PresentingViewController).SelectedViewController as UINavigationController;
}
if (presentingViewController == null)
{
PresentViewController(viewController, animated, null);
System.Diagnostics.Debug.WriteLine("SideMenu Warning: cannot push a ViewController from a ViewController without a NavigationController. It will be presented it instead.");
return;
}
// to avoid overlapping dismiss & pop/push calls, create a transaction block where the menu
// is dismissed after showing the appropriate screen
CATransaction.Begin();
CATransaction.CompletionBlock = () =>
{
this.DismissViewController(true, null);
this.VisibleViewController?.ViewWillAppear(false); // Hack: force selection to get cleared on UITableViewControllers when reappearing using custom transitions
};
UIView.Animate(SideMenuManager.AnimationDismissDuration, animation: () => SideMenuManager.SideMenuTransition.HideMenuStart());
if (SideMenuManager.AllowPopIfPossible)
{
foreach (var subViewController in presentingViewController.ViewControllers)
{
//TODO: Review this
if (subViewController.GetType() == viewController.GetType()) // if subViewController.dynamicType == viewController.dynamicType {
{
presentingViewController.PopToViewController(subViewController, animated: animated);
CATransaction.Commit();
return;
}
}
}
if (!SideMenuManager.AllowPushOfSameClassTwice)
{
//TODO: Review this
if (presentingViewController.ViewControllers[presentingViewController.ViewControllers.Length - 1].GetType() == viewController.GetType()) //if presentingViewController.viewControllers.last?.dynamicType == viewController.dynamicType {
{
CATransaction.Commit();
return;
}
}
presentingViewController.PushViewController(viewController, animated: animated);
CATransaction.Commit();
}
public override void PushViewController(UIViewController viewController, bool animated)
{
if (ViewControllers.Length <= 0)
{
// NOTE: pushViewController is called by init(rootViewController: UIViewController)
// so we must perform the normal super method in this case.
base.PushViewController(viewController, animated: true);
return;
}
UINavigationController presentingViewController = null;
if (PresentingViewController is UINavigationController)
{
presentingViewController = PresentingViewController as UINavigationController;
}
else if (PresentingViewController is UITabBarController)
{
presentingViewController = ((UITabBarController)PresentingViewController).SelectedViewController as UINavigationController;
}
if (presentingViewController == null)
{
PresentViewController(viewController, animated, null);
System.Diagnostics.Debug.WriteLine("SideMenu Warning: cannot push a ViewController from a ViewController without a NavigationController. It will be presented it instead.");
return;
}
// to avoid overlapping dismiss & pop/push calls, create a transaction block where the menu
// is dismissed after showing the appropriate screen
CATransaction.Begin();
CATransaction.CompletionBlock = () =>
{
if (SideMenuManager.MenuPushStyle != SideMenuManager.MenuPushStyleType.NoNavigation)
{
this.DismissViewController(true, null);
}
this.VisibleViewController?.ViewWillAppear(false); // Hack: force selection to get cleared on UITableViewControllers when reappearing using custom transitions
};
UIView.Animate(SideMenuManager.AnimationDismissDuration, animation: () => SideMenuManager.SideMenuTransition.HideMenuStart());
if (!SideMenuManager.AllowPushOfSameClassTwice)
{
//TODO: Review this
var lastView = ViewControllers.LastOrDefault();
if (lastView != null && lastView.GetType() == viewController.GetType()) //if presentingViewController.viewControllers.last?.dynamicType == viewController.dynamicType {
{
CATransaction.Commit();
return;
}
}
switch (SideMenuManager.MenuPushStyle)
{
case SideMenuManager.MenuPushStyleType.SubMenu:
case SideMenuManager.MenuPushStyleType.DefaultBehavior:
break;
case SideMenuManager.MenuPushStyleType.PopWhenPossible:
foreach (var subViewController in presentingViewController.ViewControllers.Reverse())
{
if (subViewController.GetType() == viewController.GetType())
{
presentingViewController.PopToViewController(subViewController, animated: animated);
CATransaction.Commit();
return;
}
}
break;
case SideMenuManager.MenuPushStyleType.Preserve:
case SideMenuManager.MenuPushStyleType.PreserveAndHideBackButton:
var viewControllers = presentingViewController.ViewControllers;
var preservedViewController = viewControllers.Where(x => x.GetType() == viewController.GetType()).LastOrDefault();
if (preservedViewController != null)
{
if (SideMenuManager.MenuPushStyle == SideMenuManager.MenuPushStyleType.PreserveAndHideBackButton)
{
preservedViewController.NavigationItem.SetHidesBackButton(true, false);
}
viewControllers.Append(preservedViewController);
presentingViewController.SetViewControllers(viewControllers, animated: animated);
CATransaction.Commit();
return;
}
if (SideMenuManager.MenuPushStyle == SideMenuManager.MenuPushStyleType.PreserveAndHideBackButton)
{
viewController.NavigationItem.SetHidesBackButton(true, false);
}
break;
case SideMenuManager.MenuPushStyleType.Replace:
case SideMenuManager.MenuPushStyleType.NoNavigation:
if (SideMenuManager.MenuPushStyle != SideMenuManager.MenuPushStyleType.NoNavigation)
{
viewController.NavigationItem.LeftBarButtonItem = SideMenuManager.LeftNavigationController.NavigationItem.LeftBarButtonItem;
viewController.NavigationItem.RightBarButtonItem = SideMenuManager.LeftNavigationController.NavigationItem.RightBarButtonItem;
}
else
{
viewController.NavigationItem.SetHidesBackButton(true, false);
}
UIViewController[] viewctrl = { viewController };
presentingViewController.SetViewControllers(viewctrl, true);
CATransaction.Commit();
return;
default:
break;
}
presentingViewController.PushViewController(viewController, animated: animated);
CATransaction.Commit();
}