public virtual void SetAppearance(UITabBarController controller, ShellAppearance appearance)
{
IShellAppearanceElement appearanceElement = appearance;
var backgroundColor = appearanceElement.EffectiveTabBarBackgroundColor;
var foregroundColor = appearanceElement.EffectiveTabBarForegroundColor; // currently unused
var disabledColor = appearanceElement.EffectiveTabBarDisabledColor; // unused on iOS
var unselectedColor = appearanceElement.EffectiveTabBarUnselectedColor;
var titleColor = appearanceElement.EffectiveTabBarTitleColor;
var tabBar = controller.TabBar;
if (_defaultTint == null)
{
_defaultBarTint = tabBar.BarTintColor;
_defaultTint = tabBar.TintColor;
_defaultUnselectedTint = tabBar.UnselectedItemTintColor;
}
if (!backgroundColor.IsDefault)
{
tabBar.BarTintColor = backgroundColor.ToUIColor();
}
if (!titleColor.IsDefault)
{
tabBar.TintColor = titleColor.ToUIColor();
}
if (!unselectedColor.IsDefault)
{
tabBar.UnselectedItemTintColor = unselectedColor.ToUIColor();
}
}
public virtual void SetAppearance(BottomNavigationView bottomView, ShellAppearance appearance)
{
IShellAppearanceElement controller = appearance;
var background = controller.EffectiveTabBarBackgroundColor;
var foreground = controller.EffectiveTabBarForegroundColor;
var disabled = controller.EffectiveTabBarDisabledColor;
var unselected = controller.EffectiveTabBarUnselectedColor;
var title = controller.EffectiveTabBarTitleColor;
if (_defaultList == null)
{
#if __ANDROID_28__
_defaultList = bottomView.ItemTextColor ?? MakeColorStateList(title.ToAndroid().ToArgb(), disabled.ToAndroid().ToArgb(), unselected.ToAndroid().ToArgb());
#else
_defaultList = bottomView.ItemTextColor;
#endif
}
var colorStateList = MakeColorStateList(title, disabled, unselected);
bottomView.ItemTextColor = colorStateList;
bottomView.ItemIconTintList = colorStateList;
colorStateList.Dispose();
SetBackgroundColor(bottomView, background);
}
public void SetAppearance(UITabBarController controller, ShellAppearance appearance)
{
IShellAppearanceElement appearanceElement = appearance;
var backgroundColor = appearanceElement.EffectiveTabBarBackgroundColor;
var unselectedColor = appearanceElement.EffectiveTabBarUnselectedColor;
var titleColor = appearanceElement.EffectiveTabBarTitleColor;
var tabBar = controller.TabBar;
bool operatingSystemHasUnselectedTint = UIDevice.CurrentDevice.CheckSystemVersion(10, 0);
if (_defaultTint == null)
{
_defaultBarTint = tabBar.BarTintColor;
_defaultTint = tabBar.TintColor;
if (operatingSystemHasUnselectedTint)
{
_defaultUnselectedTint = tabBar.UnselectedItemTintColor;
}
}
if (!backgroundColor.IsDefault)
{
tabBar.BarTintColor = backgroundColor.ToUIColor();
}
if (!titleColor.IsDefault)
{
tabBar.TintColor = titleColor.ToUIColor();
}
if (operatingSystemHasUnselectedTint && !unselectedColor.IsDefault)
{
tabBar.UnselectedItemTintColor = unselectedColor.ToUIColor();
}
}
public virtual void SetAppearance(UITabBarController controller, ShellAppearance appearance)
{
IShellAppearanceElement appearanceElement = appearance;
var backgroundColor = appearanceElement.EffectiveTabBarBackgroundColor;
var foregroundColor = appearanceElement.EffectiveTabBarForegroundColor; // Currently unused
var disabledColor = appearanceElement.EffectiveTabBarDisabledColor; // Unused on iOS
var unselectedColor = appearanceElement.EffectiveTabBarUnselectedColor;
var titleColor = appearanceElement.EffectiveTabBarTitleColor;
var tabBar = controller.TabBar;
bool operatingSystemSupportsUnselectedTint = Forms.IsiOS10OrNewer;
if (_defaultTint == null)
{
_defaultBarTint = tabBar.BarTintColor;
_defaultTint = tabBar.TintColor;
if (operatingSystemSupportsUnselectedTint)
{
_defaultUnselectedTint = tabBar.UnselectedItemTintColor;
}
}
if (Forms.IsiOS15OrNewer)
{
UpdateiOS15TabBarAppearance(controller, appearance);
}
else
{
UpdateTabBarAppearance(controller, appearance);
}
}
void UpdateTabBarAppearance(UITabBarController controller, ShellAppearance appearance)
{
IShellAppearanceElement appearanceElement = appearance;
var backgroundColor = appearanceElement.EffectiveTabBarBackgroundColor;
var unselectedColor = appearanceElement.EffectiveTabBarUnselectedColor;
var titleColor = appearanceElement.EffectiveTabBarTitleColor;
var tabBar = controller.TabBar;
if (backgroundColor != null)
{
tabBar.BarTintColor = backgroundColor.ToUIColor();
}
if (titleColor.IsDefault != null)
{
tabBar.TintColor = titleColor.ToUIColor();
}
bool operatingSystemSupportsUnselectedTint = Forms.IsiOS10OrNewer;
if (operatingSystemSupportsUnselectedTint)
{
if (unselectedColor.IsDefault != null)
{
tabBar.UnselectedItemTintColor = unselectedColor.ToUIColor();
}
}
}
public virtual void SetAppearance(UITabBarController controller, ShellAppearance appearance)
{
IShellAppearanceElement appearanceElement = appearance;
var backgroundColor = appearanceElement.EffectiveTabBarBackgroundColor;
var foregroundColor = appearanceElement.EffectiveTabBarForegroundColor; // Currently unused
var disabledColor = appearanceElement.EffectiveTabBarDisabledColor; // Unused on iOS
var unselectedColor = appearanceElement.EffectiveTabBarUnselectedColor;
var titleColor = appearanceElement.EffectiveTabBarTitleColor;
var tabBar = controller.TabBar;
if (_defaultTint == null)
{
_defaultBarTint = tabBar.BarTintColor;
_defaultTint = tabBar.TintColor;
_defaultUnselectedTint = tabBar.UnselectedItemTintColor;
}
if (PlatformVersion.IsAtLeast(15))
{
UpdateiOS15TabBarAppearance(controller, appearance);
}
else
{
UpdateTabBarAppearance(controller, appearance);
}
}
public virtual void SetAppearance(BottomNavigationView bottomView, IShellAppearanceElement appearance)
{
IShellAppearanceElement controller = appearance;
var backgroundColor = controller.EffectiveTabBarBackgroundColor;
var foregroundColor = controller.EffectiveTabBarForegroundColor; // currently unused
var disabledColor = controller.EffectiveTabBarDisabledColor;
var unselectedColor = controller.EffectiveTabBarUnselectedColor;
var titleColor = controller.EffectiveTabBarTitleColor;
if (_defaultList == null)
{
#if __ANDROID_28__
_defaultList = bottomView.ItemTextColor ?? bottomView.ItemIconTintList
?? MakeColorStateList(titleColor.ToAndroid().ToArgb(), disabledColor.ToAndroid().ToArgb(), unselectedColor.ToAndroid().ToArgb());
#else
_defaultList = bottomView.ItemTextColor ?? bottomView.ItemIconTintList;
#endif
}
_colorStateList = MakeColorStateList(titleColor, disabledColor, unselectedColor);
bottomView.ItemTextColor = _colorStateList;
bottomView.ItemIconTintList = _colorStateList;
SetBackgroundColor(bottomView, backgroundColor);
}
//public void SetAppearance(BottomNavigationView bottomView, ShellAppearance appearance)
//{
// // Hide title for bottom nav items
// // https://montemagno.com/xamarin-forms-fully-customize-bottom-tabs-on-android-turn-off-shifting/
// bottomView.LabelVisibilityMode = LabelVisibilityMode.LabelVisibilityLabeled;
// IMenu myMenu = bottomView.Menu;
// IMenuItem myItemOne = myMenu.GetItem(0);
// //if (myItemOne.IsChecked)
// //{
// // myItemOne.SetIcon(Resource.Drawable.icon_home);
// //}
// //else
// //{
// // myItemOne.SetIcon(Resource.Drawable.icon_home);
// //}
// //The same logic if you have myItemTwo, myItemThree....
//}
public void SetAppearance(BottomNavigationView bottomView, IShellAppearanceElement appearance)
{
bottomView.LabelVisibilityMode = LabelVisibilityMode.LabelVisibilityLabeled;
IMenu myMenu = bottomView.Menu;
IMenuItem myItemOne = myMenu.GetItem(0);
}
public virtual void SetAppearance(BottomNavigationView bottomView, ShellAppearance appearance)
{
IShellAppearanceElement controller = appearance;
var backgroundColor = controller.EffectiveTabBarBackgroundColor;
var foregroundColor = controller.EffectiveTabBarForegroundColor; // currently unused
var disabledColor = controller.EffectiveTabBarDisabledColor;
var unselectedColor = controller.EffectiveTabBarUnselectedColor;
var titleColor = controller.EffectiveTabBarTitleColor;
if (_defaultList == null)
{
void UpdateiOS15TabBarAppearance(UITabBarController controller, ShellAppearance appearance)
{
IShellAppearanceElement appearanceElement = appearance;
controller.TabBar
.UpdateiOS15TabBarAppearance(
ref _tabBarAppearance,
null,
null,
appearanceElement.EffectiveTabBarForegroundColor,
appearanceElement.EffectiveTabBarUnselectedColor,
appearanceElement.EffectiveTabBarBackgroundColor,
appearanceElement.EffectiveTabBarTitleColor);
}
public void SetAppearance(BottomNavigationView bottomView, IShellAppearanceElement appearance)
{
IMenu myMenu = bottomView.Menu;
for (int i = 0; i < myMenu.Size(); i++)
{
var item = myMenu.GetItem(i);
SpannableString span = new SpannableString(item.ToString());
int end = span.Length();
//span.SetSpan(new AbsoluteSizeSpan(14, true), 0, end, SpanTypes.ExclusiveExclusive);
span.SetSpan(new Rel ativeSizeSpan(0.8f), 0, end, SpanTypes.ExclusiveExclusive);
item.SetTitle(span);
}
}
public void SetAppearance(UITabBarController controller, ShellAppearance appearance)
{
IShellAppearanceElement el = appearance;
var backgroundColor = el.EffectiveTabBarBackgroundColor;
var foregroundColor = el.EffectiveTabBarForegroundColor;
var titleColor = el.EffectiveTabBarTitleColor;
var disabledColor = el.EffectiveTabBarDisabledColor;
var unselectedColor = el.EffectiveTabBarUnselectedColor;
var tabBar = controller.TabBar;
if (_blurView == null)
{
_defaultBackgroundImage = tabBar.BackgroundImage;
_defaultTint = tabBar.TintColor;
_defaultUnselectedTint = tabBar.UnselectedItemTintColor;
var effect = UIBlurEffect.FromStyle(UIBlurEffectStyle.Regular);
_blurView = new UIVisualEffectView(effect);
_blurView.Frame = tabBar.Bounds;
_colorView = new UIView(_blurView.Frame);
}
tabBar.BackgroundImage = new UIImage();
tabBar.InsertSubview(_colorView, 0);
tabBar.InsertSubview(_blurView, 0);
var button = new UIButton(UIButtonType.Custom);
button.SetTitle("test", UIControlState.Normal);
button.Frame = tabBar.Bounds;
button.Center = tabBar.Center;
tabBar.InsertSubview(button, 1);
if (!backgroundColor.IsDefault)
{
_colorView.BackgroundColor = backgroundColor.ToUIColor();
}
if (!foregroundColor.IsDefault)
{
tabBar.TintColor = foregroundColor.ToUIColor();
}
if (!unselectedColor.IsDefault)
{
tabBar.UnselectedItemTintColor = unselectedColor.ToUIColor();
}
}
public virtual void SetAppearance(BottomNavigationView bottomView, IShellAppearanceElement appearance)
{
IShellAppearanceElement controller = appearance;
var backgroundColor = controller.EffectiveTabBarBackgroundColor;
var foregroundColor = controller.EffectiveTabBarForegroundColor; // currently unused
var disabledColor = controller.EffectiveTabBarDisabledColor;
var unselectedColor = controller.EffectiveTabBarUnselectedColor;
var titleColor = controller.EffectiveTabBarTitleColor;
_colorStateList = MakeColorStateList(titleColor, disabledColor, unselectedColor);
bottomView.ItemTextColor = _colorStateList;
bottomView.ItemIconTintList = _colorStateList;
SetBackgroundColor(bottomView, backgroundColor);
}
public override void SetAppearance(BottomNavigationView bottomView, IShellAppearanceElement appearance)
{
base.SetAppearance(bottomView, appearance);
var menu = bottomView.Menu;
for (int i = 0; i < bottomView.Menu.Size(); i++)
{
var menuItem = menu.GetItem(i);
var title = menuItem.TitleFormatted;
Typeface typeface = Typeface.CreateFromAsset(MainActivity.Instance.Assets, "Chocolate Covered Raindrops.ttf");
var sb = new SpannableStringBuilder(title);
sb.SetSpan(new CustomTypefaceSpan("", typeface), 0, sb.Length(), SpanTypes.InclusiveInclusive);
menuItem.SetTitle(sb);
}
}
void UpdateTabBarAppearance(UITabBarController controller, ShellAppearance appearance)
{
IShellAppearanceElement appearanceElement = appearance;
var backgroundColor = appearanceElement.EffectiveTabBarBackgroundColor;
var unselectedColor = appearanceElement.EffectiveTabBarUnselectedColor;
var titleColor = appearanceElement.EffectiveTabBarTitleColor;
var tabBar = controller.TabBar;
if (backgroundColor != null)
{
tabBar.BarTintColor = backgroundColor.ToPlatform();
}
if (titleColor.IsDefault != null)
{
tabBar.TintColor = titleColor.ToPlatform();
}
if (unselectedColor.IsDefault != null)
{
tabBar.UnselectedItemTintColor = unselectedColor.ToPlatform();
}
}
public override void SetAppearance(BottomNavigationView bottomView, IShellAppearanceElement appearance)
{
base.SetAppearance(bottomView, appearance);
if (Build.VERSION.SdkInt < BuildVersionCodes.P)
{
return;
}
TypefaceSpan typefaceSpan = new TypefaceSpan(CustomShellRenderer.BottomTabTitleTypeface);
for (int i = 0; i < bottomView.Menu.Size(); i++)
{
var menuItem = bottomView.Menu.GetItem(i);
if (menuItem.TitleFormatted == null)
{
return;
}
SpannableStringBuilder spannableTitle = new SpannableStringBuilder(menuItem.TitleFormatted);
spannableTitle.SetSpan(typefaceSpan, 0, spannableTitle.Length(), 0);
menuItem.SetTitle(spannableTitle);
}
}
public void SetAppearance(BottomNavigationView bottomView, IShellAppearanceElement appearance)
{
_shellAppearance = appearance;
IMenu menu = bottomView.Menu;
for (int i = 0; i < menu.Size(); i++)
{
IMenuItem menuItem = menu.GetItem(i);
var title = menuItem.TitleFormatted;
Typeface typeface = Typeface.CreateFromAsset(_context.AndroidContext.Assets, "Ubuntu-Regular.ttf");
SpannableStringBuilder sb = new SpannableStringBuilder(title);
sb.SetSpan(new CustomTypefaceSpan("", typeface), 0, sb.Length(), SpanTypes.InclusiveInclusive);
//sb.SetSpan(new ForegroundColorSpan(_shellAppearance.EffectiveTabBarForegroundColor.ToAndroid()), 0, sb.Length(), SpanTypes.InclusiveInclusive);
//sb.SetSpan(new ForegroundColorSpan(_shellAppearance.EffectiveTabBarForegroundColor.ToAndroid()), 0, sb.Length(), SpanTypes.InclusiveInclusive);
menuItem.SetTitle(sb);
//_context.AndroidContext
}
SetBottomViewColours(bottomView);
}
public override void SetAppearance(BottomNavigationView bottomView, IShellAppearanceElement appearance)
{
base.SetAppearance(bottomView, appearance);
IMenu menu = bottomView.Menu;
var items = new List <IMenuItem>();
int index = 0;
do
{
try
{
items.Add(menu.GetItem(index++));
}
catch
{
break;
}
} while (true);
foreach (var item in items)
{
// TODO: Add gradient support
}
}
public void SetAppearance(BottomNavigationView bottomView, IShellAppearanceElement appearance)
{
//throw new System.NotImplementedException();
}
public void SetAppearance(BottomNavigationView bottomView, IShellAppearanceElement appearance)
{
bottomView.SetBackgroundColor(Android.Graphics.Color.White);
bottomView.LabelVisibilityMode = LabelVisibilityMode.LabelVisibilityUnlabeled;
}
public override void SetAppearance(BottomNavigationView bottomView, IShellAppearanceElement appearance)
{
base.SetAppearance(bottomView, appearance);
bottomView.LabelVisibilityMode = LabelVisibilityMode.LabelVisibilityUnlabeled;
}
void UpdateiOS15TabBarAppearance(UITabBarController controller, ShellAppearance appearance)
{
IShellAppearanceElement appearanceElement = appearance;
var tabBar = controller.TabBar;
var tabBarAppearance = new UITabBarAppearance();
tabBarAppearance.ConfigureWithOpaqueBackground();
// Set TabBarBackgroundColor
var tabBarBackgroundColor = appearanceElement.EffectiveTabBarBackgroundColor;
if (tabBarBackgroundColor != null)
{
tabBarAppearance.BackgroundColor = tabBarBackgroundColor.ToPlatform();
}
// Set TabBarTitleColor
var tabBarTitleColor = appearanceElement.EffectiveTabBarTitleColor;
// Update colors for all variations of the appearance to also make it work for iPads, etc. which use different layouts for the tabbar
// Also, set ParagraphStyle explicitly. This seems to be an iOS bug. If we don't do this, tab titles will be truncat...
if (tabBarTitleColor != null)
{
tabBarAppearance.StackedLayoutAppearance.Normal.TitleTextAttributes = tabBarAppearance.StackedLayoutAppearance.Selected.TitleTextAttributes = new UIStringAttributes {
ForegroundColor = tabBarTitleColor.ToPlatform(), ParagraphStyle = NSParagraphStyle.Default
};
tabBarAppearance.StackedLayoutAppearance.Normal.IconColor = tabBarAppearance.StackedLayoutAppearance.Selected.IconColor = tabBarTitleColor.ToPlatform();
tabBarAppearance.InlineLayoutAppearance.Normal.TitleTextAttributes = tabBarAppearance.InlineLayoutAppearance.Selected.TitleTextAttributes = new UIStringAttributes {
ForegroundColor = tabBarTitleColor.ToPlatform(), ParagraphStyle = NSParagraphStyle.Default
};
tabBarAppearance.InlineLayoutAppearance.Normal.IconColor = tabBarAppearance.InlineLayoutAppearance.Selected.IconColor = tabBarTitleColor.ToPlatform();
tabBarAppearance.CompactInlineLayoutAppearance.Normal.TitleTextAttributes = tabBarAppearance.CompactInlineLayoutAppearance.Selected.TitleTextAttributes = new UIStringAttributes {
ForegroundColor = tabBarTitleColor.ToPlatform(), ParagraphStyle = NSParagraphStyle.Default
};
tabBarAppearance.CompactInlineLayoutAppearance.Normal.IconColor = tabBarAppearance.CompactInlineLayoutAppearance.Selected.IconColor = tabBarTitleColor.ToPlatform();
}
//Set TabBarUnselectedColor
var tabBarUnselectedColor = appearanceElement.EffectiveTabBarUnselectedColor;
if (tabBarUnselectedColor != null)
{
tabBarAppearance.StackedLayoutAppearance.Normal.TitleTextAttributes = new UIStringAttributes {
ForegroundColor = tabBarUnselectedColor.ToPlatform(), ParagraphStyle = NSParagraphStyle.Default
};
tabBarAppearance.StackedLayoutAppearance.Normal.IconColor = tabBarUnselectedColor.ToPlatform();
tabBarAppearance.InlineLayoutAppearance.Normal.TitleTextAttributes = new UIStringAttributes {
ForegroundColor = tabBarUnselectedColor.ToPlatform(), ParagraphStyle = NSParagraphStyle.Default
};
tabBarAppearance.InlineLayoutAppearance.Normal.IconColor = tabBarUnselectedColor.ToPlatform();
tabBarAppearance.CompactInlineLayoutAppearance.Normal.TitleTextAttributes = new UIStringAttributes {
ForegroundColor = tabBarUnselectedColor.ToPlatform(), ParagraphStyle = NSParagraphStyle.Default
};
tabBarAppearance.CompactInlineLayoutAppearance.Normal.IconColor = tabBarUnselectedColor.ToPlatform();
}
// Set TabBarDisabledColor
var tabBarDisabledColor = appearanceElement.EffectiveTabBarDisabledColor;
if (tabBarDisabledColor != null)
{
tabBarAppearance.StackedLayoutAppearance.Disabled.TitleTextAttributes = new UIStringAttributes {
ForegroundColor = tabBarDisabledColor.ToPlatform(), ParagraphStyle = NSParagraphStyle.Default
};
tabBarAppearance.StackedLayoutAppearance.Disabled.IconColor = tabBarDisabledColor.ToPlatform();
tabBarAppearance.InlineLayoutAppearance.Disabled.TitleTextAttributes = new UIStringAttributes {
ForegroundColor = tabBarDisabledColor.ToPlatform(), ParagraphStyle = NSParagraphStyle.Default
};
tabBarAppearance.InlineLayoutAppearance.Disabled.IconColor = tabBarDisabledColor.ToPlatform();
tabBarAppearance.CompactInlineLayoutAppearance.Disabled.TitleTextAttributes = new UIStringAttributes {
ForegroundColor = tabBarDisabledColor.ToPlatform(), ParagraphStyle = NSParagraphStyle.Default
};
tabBarAppearance.CompactInlineLayoutAppearance.Disabled.IconColor = tabBarDisabledColor.ToPlatform();
}
tabBar.StandardAppearance = tabBar.ScrollEdgeAppearance = tabBarAppearance;
}
