UITabBarSwiftUIHiding.swift

extension UITabBar {
    
    ///     // TabBar Hide Mechanism
    ///     @Published var hideTabBar = false
    ///     var tabBarSubscriberCancellable: AnyCancellable?
    open override func setNeedsDisplay() {
        super.setNeedsDisplay()
        // tricky subscribe
        let coreApp: CoreAppService = ServiceLocator.shared.inject()
        if coreApp.tabBarSubscriberCancellable == nil {
            coreApp.tabBarSubscriberCancellable = coreApp.$hideTabBar.sink(receiveValue: { hide in
                self.alpha = hide ? 0 : 1.0
            })
        }
    }
  
}