导航控制器推式视图控制器

Question

题

如何仅使用按钮的touch up内部事件从一个视图控制器导航到另一个视图控制器？

更多信息

我在一个示例项目中尝试执行的步骤是：

创建示例单视图应用程序。

为用户界面（ViewController2）添加一个新文件->具有XIB的Objective-C类。

在ViewController.xib中添加一个按钮，并控制单击ViewController.h的按钮以创建内部补全事件。

转到ViewController.m中新创建的IBAction并将其更改为...

- (IBAction)GoToNext:(id)sender 

{

    ViewController2 *vc2 = [[ViewController2 alloc] initWithNibName:@"ViewController2" bundle:nil];

    [[self navigationController] pushViewController:vc2 animated:YES];

}

代码运行无误，我使用NSLog测试了按钮的功能。但是，它仍然不能将我导航到第二个视图控制器。任何帮助，将不胜感激。

Answer 1

迅捷3 **Push**喜欢let storyboard = UIStoryboard(name: "Main", bundle: nil)let vc = storyboard.instantiateViewControllerWithIdentifier("NewsDetailsVCID") as NewsDetailsViewController  vc.newsObj = newsObj navigationController?.pushViewController(vc, animated: true)或更安全  if let viewController = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "NewsDetailsVCID") as? NewsDetailsViewController {        viewController.newsObj = newsObj        if let navigator = navigationController {            navigator.pushViewController(viewController, animated: true)        }    }当下   let storyboard = UIStoryboard(name: "Main", bundle: nil)   let vc = self.storyboard?.instantiateViewControllerWithIdentifier("NewsDetailsVCID") as! NewsDetailsViewController      vc.newsObj = newsObj           present(vc!, animated: true, completion: nil)  或更安全   if let vc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "NewsDetailsVCID") as? NewsDetailsViewController     {     vc.newsObj = newsObj    present(vc, animated: true, completion: nil)    }//Appdelegate.m- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];    // Override point for customization after application launch.    self.viewController = [[ViewController alloc] initWithNibName:@"ViewController"                                                       bundle:nil];    UINavigationController *navigation = [[UINavigationController alloc]initWithRootViewController:self.viewController];    self.window.rootViewController = navigation;    [self.window makeKeyAndVisible];    return YES;}//ViewController.m- (IBAction)GoToNext:(id)sender {    ViewController2 *vc2 = [[ViewController2 alloc] init];         [self.navigationController pushViewController:vc2 animated:YES];}迅速//Appdelegate.swiftfunc application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {    self.window = UIWindow(frame: UIScreen.mainScreen().bounds)    let navigat = UINavigationController()    let vcw = ViewController(nibName: "ViewController", bundle: nil)    // Push the vcw  to the navigat    navigat.pushViewController(vcw, animated: false)    // Set the window’s root view controller    self.window!.rootViewController = navigat    // Present the window    self.window!.makeKeyAndVisible()    return true}//ViewController.swift@IBAction func GoToNext(sender : AnyObject){    let ViewController2 = ViewController2(nibName: "ViewController2", bundle: nil)    self.navigationController.pushViewController(ViewController2, animated: true)}

Answer 2

  UIStoryboard* storyboard = [UIStoryboard storyboardWithName:@"storyBoardName" bundle:nil];    MemberDetailsViewController* controller = [storyboard instantiateViewControllerWithIdentifier:@"viewControllerIdentiferInStoryBoard"];[self.navigationController pushViewController:viewControllerName animated:YES];斯威夫特4：let storyBoard = UIStoryboard(name: "storyBoardName", bundle:nil)let memberDetailsViewController = storyBoard.instantiateViewController(withIdentifier: "viewControllerIdentiferInStoryBoard") as! MemberDetailsViewControllerself.navigationController?.pushViewController(memberDetailsViewController, animated:true)

Answer 3

对于Swift，请使用以下代码： func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {    self.window = UIWindow(frame: UIScreen.mainScreen().bounds)    self.window!.backgroundColor = UIColor.whiteColor()    // Create a nav/vc pair using the custom ViewController class    let nav = UINavigationController()    let vc = NextViewController(nibName: "NextViewController", bundle: nil)    // Push the vc onto the nav    nav.pushViewController(vc, animated: false)    // Set the window’s root view controller    self.window!.rootViewController = nav    // Present the window    self.window!.makeKeyAndVisible()    return true}ViewController： @IBAction func Next(sender : AnyObject){    let nextViewController = DurationDel(nibName: "DurationDel", bundle: nil)    self.navigationController.pushViewController(nextViewController, animated: true)}