Swift實現IOS界面的跳轉，傳值

iOS開發中界面跳轉有兩種方式，上下跳轉和左右跳轉。

下跳轉_TO：

let secondViewController = SecondViewController()  
self.presentViewController(secondViewController, animated: true, completion: nil)  

 上跳轉_BACK：

dismissViewControllerAnimated(true, completion: nil)  

 右跳轉_TO:

（將新的視圖控制器PUSH到navigationController中，相當於入棧操作）

let secondViewController = SecondViewController()  
self.navigationController!.pushViewController(secondViewController, animated: true) 

右跳轉帶傳值：

        //屬性傳值，vc為將跳轉到的頁面
        let vc = CarouselInfoWebController()
        //para為要傳輸到的變量
        var para = Dictionary<String,String>()
        para["title"] = messageList[row].title
        para["content"] = messageList[row].content
        //translatePara是定義在vc頁面的接收參數的變量
        vc.translatePara = para
        vc.hidesBottomBarWhenPushed = true
        self.navigationController?.pushViewController(vc, animated: true)    

 

 

左跳轉_BACK： 

（將當前視圖控制器從導航視圖控制器堆棧中移除，從而返回到了上一級界面）

( - ) BACK_到上一級:

let firstViewController = FirstViewController()  
self.navigationController?.popViewControllerAnimated(true)  

( - ) BACK_指定界面： 

// 獲得視圖控制器中的某一視圖控制器  
let viewController = self.navigationController?.viewControllers[0]  
self.navigationController?.popToViewController(viewController as! UIViewController, animated: true)  

 ( - ) BACK_根視圖：

self.navigationController?.popToRootViewControllerAnimated(true) 

 根視圖的設置需要在AppDelegate中設置：

var window: UIWindow?  
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool  
{  
    var firstViewController = FirstViewController()  
    var rootNavigationViewController = UINavigationController(rootViewController: firstViewController)  
          
    self.window!.rootViewController = rootNavigationViewController  
          
    return true  
}