Method _update

packages/core/ui/tab-view/index.ios.ts:261–300

()

	}

	public _update() {
		const parent = <TabView>this.parent;
		const controller = this.__controller;
		if (parent && controller) {
			const icon = parent._getIcon(this);
			const index = parent.items.indexOf(this);
			const title = getTransformedText(this.title, this.style.textTransform);

			if (SDK_VERSION >= 18) {
				// iOS 18+: use UITab instead of UITabBarItem.
				// The UITab instances are created and managed at the TabView level,
				// so here we just update the corresponding tab for this controller.
				const identifier = `${index}`;
				const tabController = parent.viewController as UITabBarController;
				try {
					const tab = tabController.tabForIdentifier(identifier);
					if (tab) {
						tab.title = title;
						tab.image = icon;
					}
				} catch (e) {
					// Fallback: if tabForIdentifier is not available for some reason,
					// do not crash – rely on existing tab configuration.
				}
			} else {
				// iOS < 18: keep using UITabBarItem-based configuration.
				const tabBarItem = UITabBarItem.alloc().initWithTitleImageTag(title, icon, index);
				updateTitleAndIconPositions(this, tabBarItem, controller);

				// There is no need to request title styles update here in newer versions as styling is handled by bar appearance instance
				if (!__VISIONOS__ && SDK_VERSION < 15) {
					// TODO: Repeating code. Make TabViewItemBase - ViewBase and move the colorProperty on tabViewItem.
					// Delete the repeating code.
					const states = getTitleAttributesForStates(parent);
					applyStatesToItem(tabBarItem, states);
				}
				controller.tabBarItem = tabBarItem;
			}
		}
	}

	public _updateTitleAndIconPositions() {
		// UITab-based configuration (iOS 18+) does not expose the same per-item