一、dissmiss返回到根视图
func dissmissRootViewController() {
//1.直接跳回到根视图
//1.1 直接通过 window.rootViewController 获取根VC，再dissmiss,达不到理想效果
// self.view.window?.rootViewController?.dismiss(animated: true, completion: nil)
//1.2循环调用 presentingViewController 获取根VC，再dissmiss
//获取根VC
var rootVC = self.presentingViewController
while let parent = rootVC?.presentingViewController {
rootVC = parent
}
//释放所有下级视图
rootVC?.dismiss(animated: true, completion: nil)
//2.连续dissmiss两个视图
// self.presentingViewController?.presentingViewController?.dismiss(animated: true, completion: nil)
}
二、pop返回到指定页面
func goMeViewController() {
self.navigationController?.popToRootViewController(animated: true)
guard let delegate = UIApplication.shared.delegate as? AppDelegate,let tabBarController = delegate.window?.rootViewController as? UITabBarController, let viewControllers = tabBarController.viewControllers else {
return
}
for item in viewControllers {
guard let navController = item as? UINavigationController, let rootViewController = navController.viewControllers.first else { continue }
if rootViewController is MeMainViewController {
tabBarController.selectedViewController = navController
break
}
}
}
