Question

当我选择动态快捷方式时，我想以编程方式调用带有在Storyboard中设计的NavigationController的UIViewController。

我在Main.storyboard中设计了我的UIViewController及其NavigationController，我输入了一个故事板ID（我称之为MyUICtrlStoryID）

为了创建我的动态快捷方式，我在AppDelegate中编写了以下代码：

@available(iOS 9.0, *)
    func application(application: UIApplication, performActionForShortcutItem shortcutItem: UIApplicationShortcutItem, completionHandler: Bool -> Void) {




        let handledShortCutItem = shortcutItem.type // handleShortCutItem(shortcutItem)

        if handledShortCutItem == "3DTouchShourtcutID"{

            self.window = UIWindow(frame: UIScreen.mainScreen().bounds)

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

//FirstViewcontroller UI will be called as root UIView
            let initialViewControlleripad : FirstViewController = storyboard.instantiateViewControllerWithIdentifier("FirstViewControllerID") as! FirstViewController



            initialViewControlleripad.go2MySecondUI = true   //set this check variable in order to launch my second UI View from the first one.

            self.window = UIWindow(frame: UIScreen.mainScreen().bounds)
            self.window?.rootViewController = initialViewControlleripad
            self.window?.makeKeyAndVisible()
        }
      }

在我的FistViewController的viewWillAppear函数中

if #available(iOS 9.0, *) {

                let shortcutItem = UIApplicationShortcutItem(type: "3DTouchShortcutID",
                    localizedTitle:    "This action",
                    localizedSubtitle: "action description",
                    icon: UIApplicationShortcutIcon(type: UIApplicationShortcutIconType.Add),
                    userInfo: nil)


                UIApplication.sharedApplication().shortcutItems = [shortcutItem]

                //check if FirstViewControler had to call the second UI 
                if go2MySecondUI == true {
                    self.go2MySecondUI = false


                            let newViewCtrl = self.storyboard?.instantiateViewControllerWithIdentifier("MyUICtrlStoryID") as? SecondViewController
                           // call second UI view

                   dispatch_async(dispatch_get_main_queue()) {
                       self.presentViewController(newViewCtrl!, animated: true, completion: nil)
                   }
                                              //  }
                }

此代码工作正常：当我通过3d touch选择我的快捷方式时，我的secondviewcontroller将被调用并且它的UIView将被显示..但是没有它的导航控制器。否则，如果我通过故事板中设计的按钮调用我的secondUIcontroller（带有相关的segue回调），则第二个UIView将正确显示导航控制器..

有什么问题？

Answer 1

您需要在UINavigationController中嵌入第一个视图控制器。所以在AppDelegate中你的代码应该是：

@available(iOS 9.0, *)
    func application(application: UIApplication, performActionForShortcutItem shortcutItem: UIApplicationShortcutItem, completionHandler: Bool -> Void) {




        let handledShortCutItem = shortcutItem.type // handleShortCutItem(shortcutItem)

        if handledShortCutItem == "3DTouchShourtcutID"{

            self.window = UIWindow(frame: UIScreen.mainScreen().bounds)

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

//FirstViewcontroller UI will be called as root UIView
            let initialViewControlleripad : FirstViewController = storyboard.instantiateViewControllerWithIdentifier("FirstViewControllerID") as! FirstViewController



            initialViewControlleripad.go2MySecondUI = true   //set this check variable in order to launch my second UI View from the first one.
            let navigationController = UINavigationController(rootViewController: initialViewControlleripad)

            self.window = UIWindow(frame: UIScreen.mainScreen().bounds)
            self.window?.rootViewController = navigationController
            self.window?.makeKeyAndVisible()
        }
      }

然后在FirstViewController的viewWillAppear中，您需要推送第二个视图控制器而不是存在。所以你的代码应该是：

if #available(iOS 9.0, *) {

                let shortcutItem = UIApplicationShortcutItem(type: "3DTouchShortcutID",
                    localizedTitle:    "This action",
                    localizedSubtitle: "action description",
                    icon: UIApplicationShortcutIcon(type: UIApplicationShortcutIconType.Add),
                    userInfo: nil)


                UIApplication.sharedApplication().shortcutItems = [shortcutItem]

                //check if FirstViewControler had to call the second UI 
                if go2MySecondUI == true {
                    self.go2MySecondUI = false


                            let newViewCtrl = self.storyboard?.instantiateViewControllerWithIdentifier("MyUICtrlStoryID") as? SecondViewController
                           // call second UI view

                           self.navigationController?.pushViewController(newViewCtrl, animated: true)

                                              //  }
                }

在SWIFT 2.x中以编程方式调用带有NavigationController的UIViewController

1 个答案: