private void AddTabBadge(int tabIndex)
{
if (!(_tabLinearLayout.GetChildAt(tabIndex) is ViewGroup view) || tabIndex >= Element.Children.Count)
{
return;
}
var page = Element.GetChildPageWithBadge(tabIndex);
var badgeView = view.FindChildOfType <BadgeView>();
if (badgeView == null)
{
var badgeTarget = view.FindChildOfType <TextView>();
if (badgeTarget == null)
{
Console.WriteLine("Plugin.Badge: No Text view found to attach badge");
return;
}
//create badge for tab
badgeView = BadgeView.ForTarget(Context, badgeTarget);
}
BadgeViews[page] = badgeView;
badgeView.UpdateFromElement(page);
page.PropertyChanged += OnTabbedPagePropertyChanged;
}
private void AddTabBadge(int tabIndex)
{
if (!(_tabLinearLayout.GetChildAt(tabIndex) is ViewGroup view))
{
return;
}
var element = Element.Children[tabIndex];
var badgeView = view.FindChildOfType <BadgeView>();
if (badgeView == null)
{
var badgeTarget = view.FindChildOfType <TextView>();
if (badgeTarget == null)
{
Console.WriteLine("Plugin.Badge: No Text view found to attach badge");
return;
}
//create badge for tab
badgeView = new BadgeView(Context, badgeTarget);
}
BadgeViews[element] = badgeView;
badgeView.UpdateFromElement(element);
element.PropertyChanged += OnTabbedPagePropertyChanged;
}
private void AddTabBadge(int tabIndex)
{
var element = Element.Children[tabIndex];
var view = _tabLayout?.GetTabAt(tabIndex).CustomView ?? _tabStrip?.GetChildAt(tabIndex);
var badgeView = (view as ViewGroup)?.FindChildOfType <BadgeView>();
if (badgeView == null)
{
var imageView = (view as ViewGroup)?.FindChildOfType <ImageView>();
var badgeTarget = imageView?.Drawable != null
? (Android.Views.View)imageView
: (view as ViewGroup)?.FindChildOfType <TextView>();
//create badge for tab
badgeView = new BadgeView(Context, badgeTarget);
}
BadgeViews[element] = badgeView;
badgeView.UpdateFromElement(element);
element.PropertyChanged -= OnTabbedPagePropertyChanged;
element.PropertyChanged += OnTabbedPagePropertyChanged;
}
private void AddTabBadge(int tabIndex)
{
var element = Element.Children[tabIndex];
var view = _tabLayout?.GetTabAt(tabIndex).CustomView ?? _tabStrip?.GetChildAt(tabIndex);
var badgeView = (view as ViewGroup)?.FindChildOfType <BadgeView>();
if (badgeView == null)
{
var imageView = (view as ViewGroup)?.FindChildOfType <ImageView>();
var badgeTarget = imageView?.Drawable != null
? (Android.Views.View)imageView
: (view as ViewGroup)?.FindChildOfType <TextView>();
//create badge for tab
badgeView = new BadgeView(Context, badgeTarget);
}
BadgeViews[element] = badgeView;
//get text
var badgeText = TabBadge.GetBadgeText(element);
badgeView.Text = badgeText;
// set color if not default
var tabColor = TabBadge.GetBadgeColor(element);
if (tabColor != Color.Default)
{
badgeView.BadgeColor = tabColor.ToAndroid();
}
// set text color if not default
var tabTextColor = TabBadge.GetBadgeTextColor(element);
if (tabTextColor != Color.Default)
{
badgeView.TextColor = tabTextColor.ToAndroid();
}
// set font if not default
var font = TabBadge.GetBadgeFont(element);
if (font != Font.Default)
{
badgeView.Typeface = font.ToTypeface();
}
var margin = TabBadge.GetBadgeMargin(element);
badgeView.SetMargins((float)margin.Left, (float)margin.Top, (float)margin.Right, (float)margin.Bottom);
// set position
badgeView.Postion = TabBadge.GetBadgePosition(element);
element.PropertyChanged += OnTabbedPagePropertyChanged;
}
private void AddTabBadge(int tabIndex)
{
var element = Element.Children[tabIndex];
if (element is NavigationPage navigationPage)
{
//if the child page is a navigation page get its root page
element = navigationPage.RootPage;
}
var placement = Element.OnThisPlatform().GetToolbarPlacement();
var targetView = placement == ToolbarPlacement.Bottom ? _bottomTabStrip?.GetChildAt(tabIndex) : _topTabLayout?.GetTabAt(tabIndex).CustomView ?? _topTabStrip?.GetChildAt(tabIndex);
if (!(targetView is ViewGroup target))
{
Console.WriteLine("Plugin.Badge: Badge target cannot be null. Badge not added.");
return;
}
var badgeView = target.FindChildOfType <BadgeView>();
if (badgeView == null)
{
if (placement == ToolbarPlacement.Bottom)
{
// create for entire tab layout
badgeView = BadgeView.ForLayout(Context, target);
}
else
{
var imageView = target.FindChildOfType <ImageView>();
//create badge for tab image or text
badgeView = BadgeView.ForView(Context, imageView?.Drawable != null
? (Android.Views.View)imageView
: target.FindChildOfType <TextView>());
}
}
BadgeViews[element] = badgeView;
badgeView.UpdateFromElement(element);
element.PropertyChanged -= OnTabbedPagePropertyChanged;
element.PropertyChanged += OnTabbedPagePropertyChanged;
}
protected override void OnElementChanged(Xamarin.Forms.Platform.Android.ElementChangedEventArgs <TabbedPage> e)
{
base.OnElementChanged(e);
var tabLayout = FindChildOfType <TabLayout>(ViewGroup);
if (tabLayout == null)
{
return;
}
var tabStrip = FindChildOfType <TabLayout.SlidingTabStrip>(tabLayout);
BadgeViews = new BadgeView[tabLayout.TabCount];
for (var i = 0; i < tabLayout.TabCount; i++)
{
var tab = tabLayout.GetTabAt(i);
var view = tab.CustomView ?? tabStrip?.GetChildAt(i);
var imageView = FindChildOfType <ImageView>(view as ViewGroup);
var badgeTarget = imageView?.Drawable != null ? (Android.Views.View)imageView : FindChildOfType <TextView>(view as ViewGroup);
//create bage for tab
BadgeViews[i] = new BadgeView(Context, badgeTarget);
//get text
var badgeText = TabBadge.GetBadgeText(Element.Children[i]);
BadgeViews[i].Text = badgeText;
// set color if not default
var tabColor = TabBadge.GetBadgeColor(Element.Children[i]);
if (tabColor != Color.Default)
{
BadgeViews[i].BadgeColor = tabColor.ToAndroid();
}
Element.Children[i].PropertyChanged += OnTabPagePropertyChanged;
}
}
public static void UpdateFromPropertyChangedEvent(this BadgeView badgeView, Element element, PropertyChangedEventArgs e)
{
if (e.PropertyName == TabBadge.BadgeTextProperty.PropertyName)
{
badgeView.Text = TabBadge.GetBadgeText(element);
return;
}
if (e.PropertyName == TabBadge.BadgeColorProperty.PropertyName)
{
badgeView.BadgeColor = TabBadge.GetBadgeColor(element).ToAndroid();
return;
}
if (e.PropertyName == TabBadge.BadgeTextColorProperty.PropertyName)
{
badgeView.TextColor = TabBadge.GetBadgeTextColor(element).ToAndroid();
return;
}
if (e.PropertyName == TabBadge.BadgeFontProperty.PropertyName)
{
badgeView.Typeface = TabBadge.GetBadgeFont(element).ToTypeface();
return;
}
if (e.PropertyName == TabBadge.BadgePositionProperty.PropertyName)
{
badgeView.Postion = TabBadge.GetBadgePosition(element);
return;
}
if (e.PropertyName == TabBadge.BadgeMarginProperty.PropertyName)
{
var margin = TabBadge.GetBadgeMargin(element);
badgeView.SetMargins((float)margin.Left, (float)margin.Top, (float)margin.Right, (float)margin.Bottom);
return;
}
}
public static void UpdateFromElement(this BadgeView badgeView, Page element)
{
//get text
var badgeText = TabBadge.GetBadgeText(element);
badgeView.Text = badgeText;
// set color if not default
var tabColor = TabBadge.GetBadgeColor(element);
if (tabColor != Color.Default)
{
badgeView.BadgeColor = tabColor.ToAndroid();
}
// set text color if not default
var tabTextColor = TabBadge.GetBadgeTextColor(element);
if (tabTextColor != Color.Default)
{
badgeView.TextColor = tabTextColor.ToAndroid();
}
// set font if not default
var font = TabBadge.GetBadgeFont(element);
if (font != Font.Default)
{
badgeView.Typeface = font.ToTypeface();
}
var margin = TabBadge.GetBadgeMargin(element);
badgeView.SetMargins((float)margin.Left, (float)margin.Top, (float)margin.Right, (float)margin.Bottom);
// set position
badgeView.Postion = TabBadge.GetBadgePosition(element);
}
private void AddTabBadge(int tabIndex)
{
var page = Element.GetChildPageWithBadge(tabIndex);
var placement = Element.OnThisPlatform().GetToolbarPlacement();
var targetView = placement == ToolbarPlacement.Bottom ? _bottomTabStrip?.GetChildAt(tabIndex) : _topTabLayout?.GetTabAt(tabIndex).CustomView ?? _topTabStrip?.GetChildAt(tabIndex);
if (!(targetView is ViewGroup targetLayout))
{
Console.WriteLine("Plugin.Badge: Badge target cannot be null. Badge not added.");
return;
}
var badgeView = targetLayout.FindChildOfType <BadgeView>();
if (badgeView == null)
{
var imageView = targetLayout.FindChildOfType <ImageView>();
if (placement == ToolbarPlacement.Bottom)
{
// create for entire tab layout
badgeView = BadgeView.ForTargetLayout(Context, imageView);
}
else
{
//create badge for tab image or text
badgeView = BadgeView.ForTarget(Context, imageView?.Drawable != null
? (Android.Views.View)imageView
: targetLayout.FindChildOfType <TextView>());
}
}
BadgeViews[page] = badgeView;
badgeView.UpdateFromElement(page);
page.PropertyChanged -= OnTabbedPagePropertyChanged;
page.PropertyChanged += OnTabbedPagePropertyChanged;
}
private void AddTabBadge(int tabIndex)
{
var element = Element.Children[tabIndex];
var view = _tabLayout?.GetTabAt(tabIndex).CustomView ?? _tabStrip?.GetChildAt(tabIndex);
var badgeView = (view as ViewGroup)?.FindChildOfType <BadgeView>();
if (badgeView == null)
{
var imageView = (view as ViewGroup)?.FindChildOfType <ImageView>();
var badgeTarget = imageView?.Drawable != null
? (Android.Views.View)imageView
: (view as ViewGroup)?.FindChildOfType <TextView>();
//create badge for tab
badgeView = new BadgeView(Context, badgeTarget);
}
BadgeViews[element] = badgeView;
//get text
var badgeText = TabBadge.GetBadgeText(element);
badgeView.Text = badgeText;
// set color if not default
var tabColor = TabBadge.GetBadgeColor(element);
if (tabColor != Color.Default)
{
badgeView.BadgeColor = tabColor.ToAndroid();
}
element.PropertyChanged += OnTabbedPagePropertyChanged;
}