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 && _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 (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());
}
}
Brush barBackground = Element.BarBackground;
bar.UpdateBackground(barBackground);
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();
}
protected virtual void UpdateToolbar()
{
ActionBarDrawerToggle toggle = _drawerToggle;
if (Toolbar == null || NavigationStack.Count == 0 || CurrentPage == null || VirtualView == null)
{
return;
}
bool isNavigated = NavigationStack.Count > 1;
Page currentPage = CurrentPage;
_defaultNavigationIcon ??= Toolbar.NavigationIcon;
if (isNavigated)
{
if (NavigationPage.GetHasBackButton(currentPage))
{
Toolbar.NavigationIcon ??= _defaultNavigationIcon;
if (toggle != null)
{
toggle.DrawerIndicatorEnabled = false;
toggle.SyncState();
}
var prevPage = (Page)NavigationStack[NavigationStack.Count - 2];
var backButtonTitle = NavigationPage.GetBackButtonTitle(prevPage);
ImageSource image = NavigationPage.GetTitleIconImageSource(currentPage);
if (!string.IsNullOrEmpty(backButtonTitle))
{
Toolbar.NavigationContentDescription = backButtonTitle;
}
else if (image == null ||
Toolbar.SetNavigationContentDescription(image) == null)
{
Toolbar.SetNavigationContentDescription(Resource.String.nav_app_bar_navigate_up_description);
}
}
else if (toggle != null && _flyoutPage != null)
{
toggle.DrawerIndicatorEnabled = _flyoutPage.ShouldShowToolbarButton();
toggle.SyncState();
}
else
{
Toolbar.NavigationIcon = null;
}
}
else
{
if (toggle != null && _flyoutPage != null)
{
toggle.DrawerIndicatorEnabled = _flyoutPage.ShouldShowToolbarButton();
toggle.SyncState();
Toolbar.SetNavigationContentDescription(Resource.String.nav_app_bar_open_drawer_description);
}
}
Color tintColor = NavigationView.BarBackgroundColor;
if (tintColor == null)
{
Toolbar.BackgroundTintMode = null;
}
else
{
Toolbar.BackgroundTintMode = PorterDuff.Mode.Src;
Toolbar.BackgroundTintList = ColorStateList.ValueOf(tintColor.ToNative());
}
Brush barBackground = NavigationView.BarBackground;
Toolbar.UpdateBackground(barBackground);
Color textColor = NavigationView.BarTextColor;
if (textColor != null)
{
Toolbar.SetTitleTextColor(textColor.ToNative().ToArgb());
}
Color navIconColor = NavigationPage.GetIconColor(CurrentPage);
if (navIconColor != null && Toolbar.NavigationIcon != null)
{
DrawableExtensions.SetColorFilter(Toolbar.NavigationIcon, navIconColor, FilterMode.SrcAtop);
}
Toolbar.Title = currentPage?.Title ?? string.Empty;
if (Toolbar.NavigationIcon != null && textColor != null)
{
var icon = this.Toolbar.NavigationIcon as DrawerArrowDrawable;
if (icon != null)
{
icon.Color = textColor.ToNative().ToArgb();
}
}
UpdateTitleIcon();
UpdateTitleView();
UpdateToolbarVisibility();
}
