Swift实现IOS界面的跳转
IOS开发中界面跳转有两种方式,上下跳转和左右跳转。
上下跳转_TO:
let secondViewController = SecondViewController()
self.present(secondViewController, animated:true, completion:nil)
上下跳转_BACK:
dismiss(true, completion:nil)
左右跳转_TO:
(将新的视图控制器PUSH到navigationController中,相当于入栈操作)
let secondViewController = SecondViewController()
self.navigationController!.pushViewController(secondViewController, animated:true)
左右跳转_BACK:
(将当前视图控制器从导航视图控制器堆栈中移除,从而返回到了上一级界面)
( - ) BACK_到上一级:
let firstViewController = FirstViewController()
self.navigationController?.popViewControllerAnimated(true)
( - ) BACK_指定界面
// 获得视图控制器中的某一视图控制器
let viewController =self.navigationController?.viewControllers[0]
self.navigationController?.popToViewController(viewController as!UIViewController, animated:true)
( - ) BACK_根视图:
self.navigationController?.popToRootViewControllerAnimated(true)
根视图的设置需要在AppDelegate中设置:
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
}
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