void RegisterToolbar()
{
Context context = Context;
AToolbar bar = _toolbar;
Element page = Element.RealParent;
_flyoutPage = null;
while (page != null)
{
if (page is FlyoutPage)
{
_flyoutPage = page as FlyoutPage;
break;
}
page = page.RealParent;
}
if (_flyoutPage == null)
{
if (PageController.InternalChildren.Count > 0)
{
_flyoutPage = PageController.InternalChildren[0] as FlyoutPage;
}
if (_flyoutPage == null)
{
return;
}
}
if (((IFlyoutPageController)_flyoutPage).ShouldShowSplitMode)
{
return;
}
var renderer = APlatform.GetRenderer(_flyoutPage) as FlyoutPageRenderer;
if (renderer == null)
{
return;
}
_drawerLayout = renderer;
Controls.Platform.AutomationPropertiesProvider.GetDrawerAccessibilityResources(context, _flyoutPage, out int resourceIdOpen, out int resourceIdClose);
if (_drawerToggle != null)
{
_drawerToggle.ToolbarNavigationClickListener = null;
_drawerToggle.Dispose();
}
_drawerToggle = new ActionBarDrawerToggle(context.GetActivity(), _drawerLayout, bar,
resourceIdOpen == 0 ? global::Android.Resource.String.Ok : resourceIdOpen,
resourceIdClose == 0 ? global::Android.Resource.String.Ok : resourceIdClose)
{
ToolbarNavigationClickListener = new ClickListener(Element)
};
if (_drawerListener != null)
{
_drawerLayout.RemoveDrawerListener(_drawerListener);
_drawerListener.Dispose();
}
_drawerListener = new DrawerMultiplexedListener {
Listeners = { _drawerToggle, renderer }
};
_drawerLayout.AddDrawerListener(_drawerListener);
}
void UpdateToolbar()
{
if (_disposed)
{
return;
}
Context context = Context;
AToolbar bar = _toolbar;
ActionBarDrawerToggle toggle = _drawerToggle;
if (bar == null)
{
return;
}
bool isNavigated = NavigationPageController.StackDepth > 1;
bar.NavigationIcon = null;
Page currentPage = Element.CurrentPage;
if (isNavigated)
{
if (NavigationPage.GetHasBackButton(currentPage))
{
if (toggle != null)
{
toggle.DrawerIndicatorEnabled = false;
toggle.SyncState();
}
var icon = new DrawerArrowDrawable(context.GetThemedContext());
icon.Progress = 1;
bar.NavigationIcon = icon;
var prevPage = Element.Peek(1);
var backButtonTitle = NavigationPage.GetBackButtonTitle(prevPage);
_defaultNavigationContentDescription = backButtonTitle != null
? bar.SetNavigationContentDescription(prevPage, backButtonTitle)
: bar.SetNavigationContentDescription(prevPage, _defaultNavigationContentDescription);
}
else if (toggle != null && _flyoutPage != null)
{
toggle.DrawerIndicatorEnabled = _flyoutPage.ShouldShowToolbarButton();
toggle.SyncState();
}
}
else
{
if (toggle != null && _flyoutPage != null)
{
toggle.DrawerIndicatorEnabled = _flyoutPage.ShouldShowToolbarButton();
toggle.SyncState();
}
}
Color tintColor = Element.BarBackgroundColor;
if (tintColor == null)
{
bar.BackgroundTintMode = null;
}
else
{
bar.BackgroundTintMode = PorterDuff.Mode.Src;
bar.BackgroundTintList = ColorStateList.ValueOf(tintColor.ToAndroid());
}
Brush barBackground = Element.BarBackground;
bar.UpdateBackground(barBackground);
Color textColor = Element.BarTextColor;
if (textColor != null)
{
bar.SetTitleTextColor(textColor.ToAndroid().ToArgb());
}
Color navIconColor = NavigationPage.GetIconColor(Current);
if (navIconColor != null && bar.NavigationIcon != null)
{
bar.NavigationIcon.SetColorFilter(navIconColor, FilterMode.SrcAtop);
}
bar.Title = currentPage?.Title ?? string.Empty;
if (_toolbar.NavigationIcon != null && textColor != null)
{
var icon = _toolbar.NavigationIcon as DrawerArrowDrawable;
if (icon != null)
{
icon.Color = textColor.ToAndroid().ToArgb();
}
}
UpdateTitleIcon();
UpdateTitleView();
}
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);
}
void UpdateToolbar()
{
if (_disposed)
{
return;
}
Context context = Context;
AToolbar bar = _toolbar;
ActionBarDrawerToggle toggle = _drawerToggle;
if (bar == null)
{
return;
}
bool isNavigated = NavigationPageController.StackDepth > 1;
bar.NavigationIcon = null;
Page currentPage = Element.CurrentPage;
if (isNavigated)
{
if (NavigationPage.GetHasBackButton(currentPage) && !Context.IsDesignerContext())
{
if (toggle != null)
{
toggle.DrawerIndicatorEnabled = false;
toggle.SyncState();
}
var activity = (AppCompatActivity)context.GetActivity();
var icon = new DrawerArrowDrawable(activity.SupportActionBar.ThemedContext);
icon.Progress = 1;
bar.NavigationIcon = icon;
var prevPage = Element.Peek(1);
_defaultNavigationContentDescription = bar.SetNavigationContentDescription(prevPage, _defaultNavigationContentDescription);
}
else if (toggle != null && _masterDetailPage != null)
{
toggle.DrawerIndicatorEnabled = _masterDetailPage.ShouldShowToolbarButton();
toggle.SyncState();
}
}
else
{
if (toggle != null && _masterDetailPage != null)
{
toggle.DrawerIndicatorEnabled = _masterDetailPage.ShouldShowToolbarButton();
toggle.SyncState();
}
}
Color tintColor = Element.BarBackgroundColor;
if (Forms.IsLollipopOrNewer)
{
if (tintColor.IsDefault)
{
bar.BackgroundTintMode = null;
}
else
{
bar.BackgroundTintMode = PorterDuff.Mode.Src;
bar.BackgroundTintList = ColorStateList.ValueOf(tintColor.ToAndroid());
}
}
else
{
if (tintColor.IsDefault && _backgroundDrawable != null)
{
bar.SetBackground(_backgroundDrawable);
}
else if (!tintColor.IsDefault)
{
if (_backgroundDrawable == null)
{
_backgroundDrawable = bar.Background;
}
bar.SetBackgroundColor(tintColor.ToAndroid());
}
}
Color textColor = Element.BarTextColor;
if (!textColor.IsDefault)
{
bar.SetTitleTextColor(textColor.ToAndroid().ToArgb());
}
Color navIconColor = NavigationPage.GetIconColor(Current);
if (!navIconColor.IsDefault && bar.NavigationIcon != null)
{
DrawableExtensions.SetColorFilter(bar.NavigationIcon, navIconColor, FilterMode.SrcAtop);
}
bar.Title = currentPage?.Title ?? string.Empty;
if (_toolbar.NavigationIcon != null && !textColor.IsDefault)
{
var icon = _toolbar.NavigationIcon as DrawerArrowDrawable;
if (icon != null)
{
icon.Color = textColor.ToAndroid().ToArgb();
}
}
UpdateTitleIcon();
UpdateTitleView();
}
