午餐后静态3D Touch不显示导航和标签栏

Question

3D Touch is working fine when I press it on the home screen, but not showing the navigation and tab bar, How can I present Navigation and Tab bar using 3D Touch? Don't know how to Override point for customization after application launch. Grazie Mille

class AppDelegate: UIResponder, UIApplicationDelegate {    
enum ShortcutIdentifier: String {
    case First
    case Second
    case Third
    case Fourth
    //Initializers
    init?(fullType: String) {
        guard let last = fullType.components(separatedBy: ".").last else { return nil }
        self.init(rawValue: last)
    }
    //Properties
    var type: String {
        return Bundle.main.bundleIdentifier! + ".\(self.rawValue)"
    }
}
var window: UIWindow?

/// Saved shortcut item used as a result of an app launch, used later when app is activated.
var launchedShortcutItem: UIApplicationShortcutItem?

func handleShortCutItem(_ shortcutItem: UIApplicationShortcutItem) -> Bool {
    var handled = false

    // Verify that the provided shortcutItem type is one handled by the application.
    guard ShortcutIdentifier(fullType: shortcutItem.type) != nil else { return false }

    guard let shortCutType = shortcutItem.type as String? else { return false }

    let storyboard = UIStoryboard(name: "Main", bundle: nil)
    var vcc = UIViewController()

    switch (shortCutType) {
    case ShortcutIdentifier.First.type:
        vcc = storyboard.instantiateViewController(withIdentifier: "VC1")
        handled = true
        break
    case ShortcutIdentifier.Second.type:
        vcc = storyboard.instantiateViewController(withIdentifier: "VC2")
        handled = true
        break
    case ShortcutIdentifier.Third.type:
        vcc = storyboard.instantiateViewController(withIdentifier: "VC3")
        handled = true
        break
    case ShortcutIdentifier.Fourth.type:
        vcc = storyboard.instantiateViewController(withIdentifier: "VC4")
        handled = true
        break
    default:
        break
    }
    // Display the selected view controller
    self.window?.rootViewController?.present(vcc, animated: true, completion: nil)

    return handled
}
func application(_ application: UIApplication, performActionFor shortcutItem: UIApplicationShortcutItem, completionHandler: @escaping (Bool) -> Void) {
    let handledShortCutItem = handleShortCutItem(shortcutItem)

    completionHandler(handledShortCutItem)
}
func applicationDidBecomeActive(_ application: UIApplication) {
    guard launchedShortcutItem != nil else { return }

    //handleShortCutItem(shortcut)
    launchedShortcutItem = nil
}

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    // Override point for customization after application launch.
    // If a shortcut was launched, display its information and take the appropriate action
    if let shortcutItem = launchOptions?[UIApplicationLaunchOptionsKey.shortcutItem] as? UIApplicationShortcutItem {

        launchedShortcutItem = shortcutItem
    }
    return true
}

Answer 1

How can I present Navigation and Tab bar using 3D Touch

The same way you do it during the normal run of your app. You should not be doing some special thing in response to the user pressing the shortcut item (ie your self.window?.rootViewController?.present , which in effect merely puts up a temporary facade); you should be navigating to the actual area of your real app that the shortcut item corresponds to.