我有一个 "今日扩展",它有一个 UITableView
.
当用户点击其中的一个项目时,就会发现,该项目是一个很好的例子。UITableView
它用URL Scheme打开包含的应用程序,并传递一些数据,这样包含的应用程序就可以为用户点击的项目打开一个特定的视图。
问题是,从SceneDelegate.swift中,我可以处理URL Scheme,但似乎我不能为一个特定的 UITabBarController
显示并打开用户点击的项目的详细视图。
请注意,我并没有试图创建它们;它们已经从故事板中创建并工作了。我只是想让它自动 "导航",就像用户点击了tableview项目一样。
下面的代码是我试过的。
func scene(_ scene: UIScene, openURLContexts URLContexts: Set<UIOpenURLContext>) {
// This part, I'm handling URL Scheme which is working fine
let url = URLContexts.first!.url
let urlComponents = URLComponents(url: url, resolvingAgainstBaseURL: false)
let items = urlComponents?.queryItems
var deepLinkArray: [URLQueryItem] = []
deepLinkArray = items!
// From here I will use datas I got from URL
if let statusValue = deepLinkArray[0].value, let indexPathSection = deepLinkArray[1].value, let indexPathRow = deepLinkArray[2].value {
todoStatusValueURL = Int(statusValue)!
indexPathSectionURL = Int(indexPathSection)!
indexPathRowURL = Int(indexPathRow)!
// Here I want to show one of UITabBarController
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let snoozedVC = storyboard.instantiateViewController(withIdentifier: "SnoozedViewController") as! SnoozedViewController
snoozedVC.self.tabBarController?.selectedIndex = todoStatusValueURL! // And this is not showing what I want
// Additionally I want to show ItemDetailViewController as if user tapped the item in the tableview, and below code is also not working
let detailVC = storyboard.instantiateViewController(withIdentifier: "DetailVC") as! DetailVC
snoozedVC.navigationController?.pushViewController(detailVC, animated: true)
}
首先检查snoozedVC和TabBarController是否存在......它会让你知道你的代码有什么问题......然后根据它的结果前进,检查你的代码的哪个部分没有工作。
if let snoozedVC = storyboard.instantiateViewController(withIdentifier: "SnoozedViewController") as? SnoozedViewController {
if let tabBarController = snoozedVC.tabBarController {
tabBarController.selectedIndex = todoStatusValueURL!
} else {
print("tab controller not found")
}
} else {
print("SnoozedViewController not found")
}
}