通过覆盖 TabbarViewController 中的 shouldSelect 方法推送视图控制器

Question

我想在选择 TabBar 中的项目时推送 ViewController 我已经编写了以下代码，但它不起作用

func tabBarController(_ tabBarController: UITabBarController, shouldSelect viewController: UIViewController) -> Bool {
    if let ind = tabBarController.viewControllers!.index(of:viewController) , bottomBarTabsArray[ind].viewType == BottomBarInfo.VIEWTYPE_ASSISTANT { //
          let tabVC = AppStrings.appStoryBoard.instantiateViewController(withIdentifier: "assitantViewControllerID") as! AssitantViewController
        self.selectedViewController?.navigationController?.pushViewController(tabVC, animated: true)
         return false
     }
    return true
}

如何在选择标签栏项目时推送 ViewController 而不是切换到 ViewController

Answer 1

替换

self.selectedViewController?.navigationController?.pushViewController(tabVC, animated: true)

和

(self.selectedViewController as! UINavigationController ).pushViewController(tabVC, animated: true)

通过覆盖 TabbarViewController 中的 shouldSelect 方法推送视图控制器

Push View Controller by overriding shouldSelect method in TabbarViewController

ios

swift

viewcontroller

tabbar

tabbarcontroller