public async Task PopAfterTrackingStarted()
{
var tracker = new ToolbarTracker();
var toolbarItem1 = new ToolbarItem("Foo", "Foo.png", () => { });
var toolbarItem2 = new ToolbarItem("Foo", "Foo.png", () => { });
var page = new NavigationPage(new ContentPage())
{
ToolbarItems =
{
toolbarItem1
}
};
var firstPage = new ContentPage
{
ToolbarItems = { toolbarItem2 }
};
tracker.Target = page;
await page.Navigation.PushAsync(firstPage);
Assert.True(tracker.ToolbarItems.Contains(toolbarItem1));
Assert.True(tracker.ToolbarItems.Contains(toolbarItem2));
await page.Navigation.PopAsync();
Assert.True(tracker.ToolbarItems.Contains(toolbarItem1));
Assert.False(tracker.ToolbarItems.Contains(toolbarItem2));
}
public void Constructor()
{
var tracker = new ToolbarTracker();
Assert.Null(tracker.Target);
Assert.False(tracker.ToolbarItems.Any());
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
Child.SendDisappearing();
_tracker.Target = null;
_tracker.CollectionChanged -= TrackerOnCollectionChanged;
_tracker = null;
if (NavigationItem.RightBarButtonItems != null)
{
for (var i = 0; i < NavigationItem.RightBarButtonItems.Length; i++)
{
NavigationItem.RightBarButtonItems[i].Dispose();
}
}
if (ToolbarItems != null)
{
for (var i = 0; i < ToolbarItems.Length; i++)
{
ToolbarItems[i].Dispose();
}
}
}
base.Dispose(disposing);
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
((IPageController)Child).SendDisappearing();
if (Child != null)
{
Child.PropertyChanged -= HandleChildPropertyChanged;
Child = null;
}
_tracker.Target = null;
_tracker.CollectionChanged -= TrackerOnCollectionChanged;
_tracker = null;
if (NavigationItem.RightBarButtonItems != null)
{
for (var i = 0; i < NavigationItem.RightBarButtonItems.Length; i++)
{
NavigationItem.RightBarButtonItems[i].Dispose();
}
}
if (ToolbarItems != null)
{
for (var i = 0; i < ToolbarItems.Length; i++)
{
ToolbarItems[i].Dispose();
}
}
}
base.Dispose(disposing);
}
public void AdditionalTargets()
{
var tracker = new ToolbarTracker();
var toolbarItem1 = new ToolbarItem("Foo", "Foo.png", () => { });
var toolbarItem2 = new ToolbarItem("Foo", "Foo.png", () => { });
var page = new ContentPage
{
ToolbarItems =
{
toolbarItem1
}
};
var additionalPage = new ContentPage
{
ToolbarItems = { toolbarItem2 }
};
tracker.Target = page;
tracker.AdditionalTargets = new[] { additionalPage };
Assert.True(tracker.ToolbarItems.Contains(toolbarItem1));
Assert.True(tracker.ToolbarItems.Contains(toolbarItem2));
}
protected override void OnElementChanged(ElementChangedEventArgs <NavigationPage> e)
{
if (_naviFrame == null)
{
_naviFrame = new Naviframe(Forms.NativeParent);
_naviFrame.PreserveContentOnPop = true;
_naviFrame.DefaultBackButtonEnabled = false;
_naviFrame.AnimationFinished += OnAnimationFinished;
SetNativeView(_naviFrame);
_naviItemMap = new Dictionary <Page, NaviItem>();
}
if (_toolbarTracker == null)
{
_toolbarTracker = new ToolbarTracker();
_toolbarTracker.CollectionChanged += OnToolbarCollectionChanged;
}
if (e.OldElement != null)
{
var navigation = e.OldElement as INavigationPageController;
navigation.PopRequested -= OnPopRequested;
navigation.PopToRootRequested -= OnPopToRootRequested;
navigation.PushRequested -= OnPushRequested;
navigation.RemovePageRequested -= OnRemovePageRequested;
navigation.InsertPageBeforeRequested -= OnInsertPageBeforeRequested;
var pageController = e.OldElement as IPageController;
pageController.InternalChildren.CollectionChanged -= OnPageCollectionChanged;
}
if (e.NewElement != null)
{
var navigation = e.NewElement as INavigationPageController;
navigation.PopRequested += OnPopRequested;
navigation.PopToRootRequested += OnPopToRootRequested;
navigation.PushRequested += OnPushRequested;
navigation.RemovePageRequested += OnRemovePageRequested;
navigation.InsertPageBeforeRequested += OnInsertPageBeforeRequested;
var pageController = e.NewElement as IPageController;
pageController.InternalChildren.CollectionChanged += OnPageCollectionChanged;
foreach (Page page in pageController.InternalChildren)
{
_naviItemMap[page] = _naviFrame.Push(Platform.GetOrCreateRenderer(page).NativeView, SpanTitle(page.Title));
page.PropertyChanged += NavigationBarPropertyChangedHandler;
UpdateHasNavigationBar(page);
}
_toolbarTracker.Target = e.NewElement;
_previousPage = e.NewElement.CurrentPage;
}
base.OnElementChanged(e);
}
public Platform(Windows.UI.Xaml.Controls.Page page)
{
_page = page;
_renderer = new Canvas();
_renderer.SizeChanged += renderer_SizeChanged;
NavigationService.Current.OnNewPage += Current_OnNewPage;
_tracker = new ToolbarTracker();
_tracker.CollectionChanged += (s, e) => UpdateAppBar();
}
public void SimpleTrackEmpty ()
{
var tracker = new ToolbarTracker ();
var page = new ContentPage ();
tracker.Target = page;
Assert.False (tracker.ToolbarItems.Any ());
}
protected override void OnElementChanged(ElementChangedEventArgs <NavigationPage> e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
var oldNavController = (INavigationPageController)e.OldElement;
oldNavController.PushRequested -= OnPushed;
oldNavController.PopRequested -= OnPopped;
oldNavController.PopToRootRequested -= OnPoppedToRoot;
oldNavController.InsertPageBeforeRequested -= OnInsertPageBeforeRequested;
oldNavController.RemovePageRequested -= OnRemovePageRequested;
RemoveAllViews();
if (_toolbar != null)
{
AddView(_toolbar);
}
}
if (e.NewElement != null)
{
if (_toolbarTracker == null)
{
SetupToolbar();
_toolbarTracker = new ToolbarTracker();
_toolbarTracker.CollectionChanged += ToolbarTrackerOnCollectionChanged;
}
var parents = new List <Page>();
Page root = Element;
while (!Application.IsApplicationOrNull(root.RealParent))
{
root = (Page)root.RealParent;
parents.Add(root);
}
_toolbarTracker.Target = e.NewElement;
_toolbarTracker.AdditionalTargets = parents;
UpdateMenu();
var navController = (INavigationPageController)e.NewElement;
navController.PushRequested += OnPushed;
navController.PopRequested += OnPopped;
navController.PopToRootRequested += OnPoppedToRoot;
navController.InsertPageBeforeRequested += OnInsertPageBeforeRequested;
navController.RemovePageRequested += OnRemovePageRequested;
// If there is already stuff on the stack we need to push it
foreach (Page page in navController.Pages)
{
PushViewAsync(page, false);
}
}
}
protected override void OnElementChanged(ElementChangedEventArgs <NavigationPage> e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
var oldNavController = (INavigationPageController)e.OldElement;
oldNavController.PushRequested -= OnPushed;
oldNavController.PopRequested -= OnPopped;
oldNavController.PopToRootRequested -= OnPoppedToRoot;
oldNavController.InsertPageBeforeRequested -= OnInsertPageBeforeRequested;
oldNavController.RemovePageRequested -= OnRemovePageRequested;
RemoveAllViews();
if (_toolbar != null)
{
AddView(_toolbar);
}
}
if (e.NewElement != null)
{
if (_toolbarTracker == null)
{
SetupToolbar();
_toolbarTracker = new ToolbarTracker();
_toolbarTracker.CollectionChanged += ToolbarTrackerOnCollectionChanged;
}
var parents = new List <Page>();
Page root = Element;
while (!Application.IsApplicationOrNull(root.RealParent))
{
root = (Page)root.RealParent;
parents.Add(root);
}
_toolbarTracker.Target = e.NewElement;
_toolbarTracker.AdditionalTargets = parents;
UpdateMenu();
var navController = (INavigationPageController)e.NewElement;
navController.PushRequested += OnPushed;
navController.PopRequested += OnPopped;
navController.PopToRootRequested += OnPoppedToRoot;
navController.InsertPageBeforeRequested += OnInsertPageBeforeRequested;
navController.RemovePageRequested += OnRemovePageRequested;
if (_isAttachedToWindow && Element.IsAttachedToRoot())
{
PushCurrentPages();
}
}
}
public Platform(Windows.UI.Xaml.Controls.Page page)
{
_page = page;
_renderer = new Canvas();
_renderer.SizeChanged += renderer_SizeChanged;
NavigationService.Current.OnNewPage += Current_OnNewPage;
_tracker = new ToolbarTracker();
_tracker.CollectionChanged += (s, e) => UpdateAppBar();
}
public void SimpleTrackEmpty()
{
var tracker = new ToolbarTracker();
var page = new ContentPage();
tracker.Target = page;
Assert.False(tracker.ToolbarItems.Any());
}
public override void Connect(IView navigationView, NavigationLayout nativeView)
{
base.Connect(navigationView, nativeView);
if (ToolbarTracker == null)
{
ToolbarTracker = new ToolbarTracker();
ToolbarTracker.CollectionChanged += ToolbarTrackerOnCollectionChanged;
}
ToolbarTracker.AdditionalTargets = NavigationView.GetParentPages();
}
protected override void Dispose(bool disposing)
{
_toolbarTracker.CollectionChanged -= toolbarCollectionChanged;
Element.Pushed -= pagePusshed;
Element.Popped -= pagePopped;
_toolbar.SetNavigationOnClickListener(null);
_navigationBackListener?.Dispose();
_navigationCustomListener?.Dispose();
_toolbar = null;
_toolbarTracker = null;
base.Dispose(disposing);
}
public void SimpleTrackWithItems ()
{
var tracker = new ToolbarTracker ();
ToolbarItem item1, item2;
var page = new ContentPage {
ToolbarItems = {
new ToolbarItem ("Foo", "Foo.png", () => {}),
new ToolbarItem ("Bar", "Bar.png", () => {})
}
};
tracker.Target = page;
Assert.True (tracker.ToolbarItems.Contains (page.ToolbarItems[0]));
Assert.True (tracker.ToolbarItems.Contains (page.ToolbarItems[1]));
}
protected override void OnElementChanged(ElementChangedEventArgs <NavigationPage> e)
{
if (_naviFrame == null)
{
_naviFrame = new Naviframe(System.Maui.Maui.NativeParent);
_naviFrame.PreserveContentOnPop = true;
_naviFrame.DefaultBackButtonEnabled = false;
_naviFrame.AnimationFinished += OnAnimationFinished;
SetNativeView(_naviFrame);
_naviItemMap = new Dictionary <Page, NaviItem>();
}
if (_toolbarTracker == null)
{
_toolbarTracker = new ToolbarTracker();
_toolbarTracker.CollectionChanged += OnToolbarCollectionChanged;
}
if (e.OldElement != null)
{
var navigation = e.OldElement as INavigationPageController;
navigation.PopRequested -= OnPopRequested;
navigation.PopToRootRequested -= OnPopToRootRequested;
navigation.PushRequested -= OnPushRequested;
navigation.RemovePageRequested -= OnRemovePageRequested;
navigation.InsertPageBeforeRequested -= OnInsertPageBeforeRequested;
var pageController = e.OldElement as IPageController;
pageController.InternalChildren.CollectionChanged -= OnPageCollectionChanged;
}
if (e.NewElement != null)
{
var navigation = e.NewElement as INavigationPageController;
navigation.PopRequested += OnPopRequested;
navigation.PopToRootRequested += OnPopToRootRequested;
navigation.PushRequested += OnPushRequested;
navigation.RemovePageRequested += OnRemovePageRequested;
navigation.InsertPageBeforeRequested += OnInsertPageBeforeRequested;
_toolbarTracker.Target = e.NewElement;
_previousPage = e.NewElement.CurrentPage;
}
base.OnElementChanged(e);
}
public void SimpleTrackWithItems()
{
var tracker = new ToolbarTracker();
ToolbarItem item1, item2;
var page = new ContentPage {
ToolbarItems =
{
new ToolbarItem("Foo", "Foo.png", () => {}),
new ToolbarItem("Bar", "Bar.png", () => {})
}
};
tracker.Target = page;
Assert.True(tracker.ToolbarItems.Contains(page.ToolbarItems[0]));
Assert.True(tracker.ToolbarItems.Contains(page.ToolbarItems[1]));
}
protected override void OnElementChanged(ElementChangedEventArgs <NavigationPage> e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
var oldNavController = (INavigationPageController)e.OldElement;
oldNavController.PushRequested -= OnPushed;
oldNavController.PopRequested -= OnPopped;
oldNavController.PopToRootRequested -= OnPoppedToRoot;
oldNavController.InsertPageBeforeRequested -= OnInsertPageBeforeRequested;
oldNavController.RemovePageRequested -= OnRemovePageRequested;
RemoveAllViews();
}
if (e.NewElement != null)
{
if (_toolbarTracker == null)
{
SetupToolbar();
_toolbarTracker = new ToolbarTracker();
_toolbarTracker.CollectionChanged += ToolbarTrackerOnCollectionChanged;
}
_toolbarTracker.Target = e.NewElement;
_toolbarTracker.AdditionalTargets = Element.GetParentPages();
UpdateMenu();
var navController = (INavigationPageController)e.NewElement;
navController.PushRequested += OnPushed;
navController.PopRequested += OnPopped;
navController.PopToRootRequested += OnPoppedToRoot;
navController.InsertPageBeforeRequested += OnInsertPageBeforeRequested;
navController.RemovePageRequested += OnRemovePageRequested;
if (_isAttachedToWindow && Element.IsAttachedToRoot())
{
PushCurrentPages();
}
}
}
public void TrackPreConstructedTabbedPage()
{
var tracker = new ToolbarTracker();
var toolbarItem1 = new ToolbarItem("Foo", "Foo.png", () => { });
var toolbarItem2 = new ToolbarItem("Foo", "Foo.png", () => { });
var toolbarItem3 = new ToolbarItem("Foo", "Foo.png", () => { });
var subPage1 = new ContentPage
{
ToolbarItems = { toolbarItem1 }
};
var subPage2 = new ContentPage
{
ToolbarItems = { toolbarItem2, toolbarItem3 }
};
var tabbedpage = new TabbedPage
{
Children =
{
subPage1,
subPage2
}
};
tabbedpage.CurrentPage = subPage1;
tracker.Target = tabbedpage;
Assert.True(tracker.ToolbarItems.Count() == 1);
Assert.True(tracker.ToolbarItems.First() == subPage1.ToolbarItems[0]);
bool changed = false;
tracker.CollectionChanged += (sender, args) => changed = true;
tabbedpage.CurrentPage = subPage2;
Assert.True(tracker.ToolbarItems.Count() == 2);
Assert.True(tracker.ToolbarItems.First() == subPage2.ToolbarItems[0]);
Assert.True(tracker.ToolbarItems.Last() == subPage2.ToolbarItems[1]);
}
protected override void OnElementChanged(Xamarin.Forms.Platform.Android.ElementChangedEventArgs <NavigationPage> e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
_toolbarTracker.CollectionChanged -= toolbarCollectionChanged;
Element.Pushed -= pagePusshed;
Element.Popped -= pagePopped;
}
if (e.NewElement != null)
{
var fieldInfo = typeof(NavigationPageRenderer).GetField("_toolbarTracker", BindingFlags.Instance | BindingFlags.NonPublic);
_toolbarTracker = (ToolbarTracker)fieldInfo.GetValue(this);
fieldInfo = typeof(NavigationPageRenderer).GetField("_toolbar", BindingFlags.Instance | BindingFlags.NonPublic);
_toolbar = (Toolbar)fieldInfo.GetValue(this);
_toolbarTracker.CollectionChanged += toolbarCollectionChanged;
_toolbar.SetTitleTextColor(ForeColor);
_toolbar.SetSubtitleTextColor(ForeColor);
Element.Pushed += pagePusshed;
Element.Popped += pagePopped;
_navigationBackListener = new NavigationIconBack(Element);
UpdateMenu();
if (Element.Parent is Xamarin.Forms.Application)
{
var statusBarColor = (Element as NavigationPageEx).StatusBarBackColor;
if (statusBarColor != Xamarin.Forms.Color.Default)
{
(Context as FormsAppCompatActivity).Window.SetStatusBarColor(statusBarColor.ToAndroid());
}
}
}
}
public void UnsetTarget()
{
var tracker = new ToolbarTracker();
ToolbarItem item1, item2;
var page = new ContentPage {
ToolbarItems =
{
new ToolbarItem("Foo", "Foo.png", () => {}),
new ToolbarItem("Bar", "Bar.png", () => {})
}
};
tracker.Target = page;
Assert.True(tracker.ToolbarItems.Count() == 2);
tracker.Target = null;
Assert.False(tracker.ToolbarItems.Any());
}
public void TrackPreConstructedTabbedPage ()
{
var tracker = new ToolbarTracker ();
var toolbarItem1 = new ToolbarItem ("Foo", "Foo.png", () => { });
var toolbarItem2 = new ToolbarItem ("Foo", "Foo.png", () => { });
var toolbarItem3 = new ToolbarItem ("Foo", "Foo.png", () => { });
var subPage1 = new ContentPage {
ToolbarItems = {toolbarItem1}
};
var subPage2 = new ContentPage {
ToolbarItems = {toolbarItem2, toolbarItem3}
};
var tabbedpage = new TabbedPage {
Children = {
subPage1,
subPage2
}
};
tabbedpage.CurrentPage = subPage1;
tracker.Target = tabbedpage;
Assert.True (tracker.ToolbarItems.Count () == 1);
Assert.True (tracker.ToolbarItems.First () == subPage1.ToolbarItems[0]);
bool changed = false;
tracker.CollectionChanged += (sender, args) => changed = true;
tabbedpage.CurrentPage = subPage2;
Assert.True (tracker.ToolbarItems.Count () == 2);
Assert.True (tracker.ToolbarItems.First () == subPage2.ToolbarItems[0]);
Assert.True (tracker.ToolbarItems.Last () == subPage2.ToolbarItems[1]);
}
protected override void Dispose(bool disposing)
{
if (_disposed)
{
return;
}
_disposed = true;
if (disposing)
{
DeviceDisplay.MainDisplayInfoChanged -= DeviceInfoPropertyChanged;
if (NavigationPageController != null)
{
var navController = NavigationPageController;
navController.PushRequested -= OnPushed;
navController.PopRequested -= OnPopped;
navController.PopToRootRequested -= OnPoppedToRoot;
navController.InsertPageBeforeRequested -= OnInsertPageBeforeRequested;
navController.RemovePageRequested -= OnRemovePageRequested;
}
if (Current != null)
{
Current.PropertyChanged -= CurrentOnPropertyChanged;
}
FragmentManager fm = FragmentManager;
if (!fm.IsDestroyed)
{
FragmentTransaction trans = fm.BeginTransactionEx();
foreach (Fragment fragment in _fragmentStack)
{
trans.RemoveEx(fragment);
}
trans.CommitAllowingStateLossEx();
fm.ExecutePendingTransactionsEx();
}
_toolbar.RemoveView(_titleView);
_titleView?.Dispose();
_titleView = null;
if (_titleViewRenderer != null)
{
Platform.ClearRenderer(_titleViewRenderer.View);
_titleViewRenderer.Dispose();
_titleViewRenderer = null;
}
_toolbar.RemoveView(_titleIconView);
_titleIconView?.Dispose();
_titleIconView = null;
_imageSource = null;
if (_toolbarTracker != null)
{
_toolbarTracker.CollectionChanged -= ToolbarTrackerOnCollectionChanged;
_toolbar.DisposeMenuItems(_currentToolbarItems, OnToolbarItemPropertyChanged);
_toolbarTracker.Target = null;
_toolbarTracker = null;
}
if (_currentMenuItems != null)
{
_currentMenuItems.Clear();
_currentMenuItems = null;
}
if (_currentToolbarItems != null)
{
_currentToolbarItems.Clear();
_currentToolbarItems = null;
}
if (_toolbar != null)
{
_toolbar.SetNavigationOnClickListener(null);
_toolbar.Menu.Clear();
RemoveView(_toolbar);
_toolbar.Dispose();
_toolbar = null;
}
if (_drawerLayout.IsAlive() && _drawerListener.IsAlive())
{
_drawerLayout.RemoveDrawerListener(_drawerListener);
RemoveView(_drawerLayout);
}
if (_drawerListener != null)
{
_drawerListener.Dispose();
_drawerListener = null;
}
if (_drawerToggle != null)
{
_drawerToggle.ToolbarNavigationClickListener = null;
_drawerToggle.Dispose();
_drawerToggle = null;
}
if (_backgroundDrawable != null)
{
_backgroundDrawable.Dispose();
_backgroundDrawable = null;
}
Current = null;
// We dispose the child renderers after cleaning up everything related to DrawerLayout in case
// one of the children is a FlyoutPage (which may dispose of the DrawerLayout).
if (Element != null)
{
foreach (Element element in PageController.InternalChildren)
{
var child = element as VisualElement;
if (child == null)
{
continue;
}
IVisualElementRenderer renderer = Platform.GetRenderer(child);
renderer?.Dispose();
}
}
}
base.Dispose(disposing);
}
public void Constructor ()
{
var tracker = new ToolbarTracker ();
Assert.Null (tracker.Target);
Assert.False (tracker.ToolbarItems.Any ());
}
protected override void Dispose(bool disposing)
{
if (disposing && !_disposed)
{
_disposed = true;
if (_titleViewRenderer != null)
{
Android.Platform.ClearRenderer(_titleViewRenderer.View);
_titleViewRenderer.Dispose();
_titleViewRenderer = null;
}
_toolbar.RemoveView(_titleView);
_titleView?.Dispose();
_titleView = null;
_toolbar.RemoveView(_titleIconView);
_titleIconView?.Dispose();
_titleIconView = null;
_imageSource = null;
if (_toolbarTracker != null)
{
_toolbarTracker.CollectionChanged -= ToolbarTrackerOnCollectionChanged;
_toolbarTracker.Target = null;
_toolbarTracker = null;
}
if (_toolbar != null)
{
_toolbar.SetNavigationOnClickListener(null);
_toolbar.Dispose();
_toolbar = null;
}
if (_drawerLayout != null && _drawerListener != null)
{
_drawerLayout.RemoveDrawerListener(_drawerListener);
}
if (_drawerListener != null)
{
_drawerListener.Dispose();
_drawerListener = null;
}
if (_drawerToggle != null)
{
_drawerToggle.Dispose();
_drawerToggle = null;
}
if (_backgroundDrawable != null)
{
_backgroundDrawable.Dispose();
_backgroundDrawable = null;
}
Current = null;
// We dispose the child renderers after cleaning up everything related to DrawerLayout in case
// one of the children is a MasterDetailPage (which may dispose of the DrawerLayout).
if (Element != null)
{
foreach (Element element in PageController.InternalChildren)
{
var child = element as VisualElement;
if (child == null)
{
continue;
}
IVisualElementRenderer renderer = Android.Platform.GetRenderer(child);
renderer?.Dispose();
}
var navController = NavigationPageController;
navController.PushRequested -= OnPushed;
navController.PopRequested -= OnPopped;
navController.PopToRootRequested -= OnPoppedToRoot;
navController.InsertPageBeforeRequested -= OnInsertPageBeforeRequested;
navController.RemovePageRequested -= OnRemovePageRequested;
}
Device.Info.PropertyChanged -= DeviceInfoPropertyChanged;
// API only exists on newer android YAY
if ((int)Build.VERSION.SdkInt >= 17)
{
FragmentManager fm = FragmentManager;
if (!fm.IsDestroyed)
{
FragmentTransaction trans = fm.BeginTransactionEx();
foreach (Fragment fragment in _fragmentStack)
{
trans.RemoveEx(fragment);
}
trans.CommitAllowingStateLossEx();
fm.ExecutePendingTransactionsEx();
}
}
}
base.Dispose(disposing);
}
protected override void Dispose(bool disposing)
{
if (disposing && !_disposed)
{
_disposed = true;
var activity = (FormsAppCompatActivity)Context;
// API only exists on newer android YAY
if ((int)Build.VERSION.SdkInt >= 17)
{
if (!activity.IsDestroyed)
{
FragmentManager fm = FragmentManager;
FragmentTransaction trans = fm.BeginTransaction();
foreach (Fragment fragment in _fragmentStack)
{
trans.Remove(fragment);
}
trans.CommitAllowingStateLoss();
fm.ExecutePendingTransactions();
}
}
if (Element != null)
{
for (var i = 0; i < Element.InternalChildren.Count; i++)
{
var child = Element.InternalChildren[i] as VisualElement;
if (child == null)
{
continue;
}
IVisualElementRenderer renderer = Android.Platform.GetRenderer(child);
renderer?.Dispose();
}
Element.PushRequested -= OnPushed;
Element.PopRequested -= OnPopped;
Element.PopToRootRequested -= OnPoppedToRoot;
Element.InsertPageBeforeRequested -= OnInsertPageBeforeRequested;
Element.RemovePageRequested -= OnRemovePageRequested;
Element.SendDisappearing();
}
if (_toolbarTracker != null)
{
_toolbarTracker.CollectionChanged -= ToolbarTrackerOnCollectionChanged;
_toolbarTracker.Target = null;
_toolbarTracker = null;
}
if (_toolbar != null)
{
_toolbar.NavigationClick -= BarOnNavigationClick;
_toolbar.Dispose();
_toolbar = null;
}
Current = null;
Device.Info.PropertyChanged -= DeviceInfoPropertyChanged;
}
base.Dispose(disposing);
}
public async Task PopAfterTrackingStarted ()
{
var tracker = new ToolbarTracker ();
var toolbarItem1 = new ToolbarItem ("Foo", "Foo.png", () => { });
var toolbarItem2 = new ToolbarItem ("Foo", "Foo.png", () => { });
var page = new NavigationPage (new ContentPage ()) {
ToolbarItems = {
toolbarItem1
}
};
var firstPage = new ContentPage {
ToolbarItems = { toolbarItem2 }
};
tracker.Target = page;
await page.Navigation.PushAsync (firstPage);
Assert.True (tracker.ToolbarItems.Contains (toolbarItem1));
Assert.True (tracker.ToolbarItems.Contains (toolbarItem2));
await page.Navigation.PopAsync ();
Assert.True (tracker.ToolbarItems.Contains (toolbarItem1));
Assert.False (tracker.ToolbarItems.Contains (toolbarItem2));
}
public void UnsetTarget ()
{
var tracker = new ToolbarTracker ();
ToolbarItem item1, item2;
var page = new ContentPage {
ToolbarItems = {
new ToolbarItem ("Foo", "Foo.png", () => {}),
new ToolbarItem ("Bar", "Bar.png", () => {})
}
};
tracker.Target = page;
Assert.True (tracker.ToolbarItems.Count () == 2);
tracker.Target = null;
Assert.False (tracker.ToolbarItems.Any ());
}
public GtkToolbarTracker()
{
_toolbarTracker = new ToolbarTracker();
_toolbarTracker.CollectionChanged += ToolbarTrackerOnCollectionChanged;
}
public void AdditionalTargets ()
{
var tracker = new ToolbarTracker ();
var toolbarItem1 = new ToolbarItem ("Foo", "Foo.png", () => { });
var toolbarItem2 = new ToolbarItem ("Foo", "Foo.png", () => { });
var page = new ContentPage {
ToolbarItems = {
toolbarItem1
}
};
var additionalPage = new ContentPage {
ToolbarItems = {toolbarItem2}
};
tracker.Target = page;
tracker.AdditionalTargets = new[] {additionalPage};
Assert.True (tracker.ToolbarItems.Contains (toolbarItem1));
Assert.True (tracker.ToolbarItems.Contains (toolbarItem2));
}
