我已经使用ESTabBarController实现了标签栏。到目前为止，我已经设法使中间选项卡启动模式，然后单击“添加”，我的应用程序将创建一个新条目。我正在努力的是在输入后立即过渡到Google Analytics（分析）控制器。
这是我的代码。它位于AppDelegate的{{1}}中。
didFinishLaunchingWithOptions我尝试了
let tabBarController = ESTabBarController()
tabBarController.delegate = self
let v1 = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "QueryViewController") as! QueryViewController
let v2 = QueryViewController()
let v3 = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "SettingsViewController") as! SettingsViewController
v1.tabBarItem = ESTabBarItem.init(TabBarContentView())
v2.tabBarItem = ESTabBarItem.init(TabBarContentView())
v3.tabBarItem = ESTabBarItem.init(TabBarContentView())
v1.tabBarItem.image = UIImage.init(named: "ic_home")
v2.tabBarItem.image = UIImage.init(named: "ic_new")
v3.tabBarItem.image = UIImage.init(named: "ic_settings")
v1.tabBarItem.selectedImage = UIImage.init(named: "ic_home")
v2.tabBarItem.selectedImage = UIImage.init(named: "ic_new")
v3.tabBarItem.selectedImage = UIImage.init(named: "ic_settings")
let n1 = NavigationController.init(rootViewController: v1)
let n2 = NavigationController.init(rootViewController: v2)
let n3 = NavigationController.init(rootViewController: v3)
tabBarController.shouldHijackHandler = {
tabbarController, viewController, index in
if index == 1 {
return true
}
return false
}
tabBarController.didHijackHandler = {
[weak tabBarController] tabbarController, viewController, index in
DispatchQueue.main.asyncAfter(deadline: .now() + 0.2) {
let alert = UIAlertController(title: "New", message: nil, preferredStyle: UIAlertController.Style.alert)
let addQuery = UIAlertAction(title: "Add", style: .default) { (alertAction) in
let textField = alert.textFields![0] as UITextField
let newQueryID = UUID().uuidString
QueryModel().createNewQuery(id: newQueryID, name: textField.text ?? "")
let viewController = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "QueryAnalyticsController") as! QueryAnalyticsController;
viewController.selectedQueryID = newQueryID
// Then push that view controller onto the navigation stack
//tabBarController?.navigationController?.pushViewController(viewController, animated: true)
//tabBarController?.present(viewController, animated: true)
}
alert.addTextField { (textField) in
textField.placeholder = "Title"
}
alert.addAction(addQuery)
let cancel = UIAlertAction(title: "Cancel", style: .cancel, handler: nil)
alert.addAction(cancel)
tabBarController?.present(alert, animated: true, completion: nil)
}
}
tabBarController.viewControllers = [n1, n2, n3]
self.window?.rootViewController = tabBarController
可以工作，但没有考虑NavigationController，我需要它才能返回。
我也尝试过
tabBarController?.present(viewController, animated: true)
但是它并没有像我期望的那样推送viewController。
答案 0 :(得分：0)
替换
self.window?.rootViewController = UINavigationController(rootViewController:tabBarController)
使用
let nav = tabBarController!.selectedViewController as! UINavigationController
nav.pushViewController(viewController, animated: true)
由于您当前的导航为零
tabBarController？.navigationController？ <<<<<无
或像孩子一样推动
{{1}}