以编程方式添加导航栏iOS

3 回答

• 4

  -(void)ViewDidLoad
  {
   UINavigationBar* navbar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 50)];
  
  UINavigationItem* navItem = [[UINavigationItem alloc] initWithTitle:@"karthik"];
  // [navbar setBarTintColor:[UIColor lightGrayColor]];
  UIBarButtonItem* cancelBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:@selector(onTapCancel:)];
  navItem.leftBarButtonItem = cancelBtn;
  
  UIBarButtonItem* doneBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(onTapDone:)];
  navItem.rightBarButtonItem = doneBtn;
  
  [navbar setItems:@[navItem]];
  [self.view addSubview:navbar];
  }
  
  
  -(void)onTapDone:(UIBarButtonItem*)item{
  
  }
  
  -(void)onTapCancel:(UIBarButtonItem*)item{
  
  }
  

  Swift3

  let navigationBar = UINavigationBar(frame: CGRect(x: 0, y: 0, width: view.frame.size.width, height:44)) // Offset by 20 pixels vertically to take the status bar into account
  
      navigationBar.backgroundColor = UIColor.white
  
  
      // Create a navigation item with a title
      let navigationItem = UINavigationItem()
      navigationItem.title = "Title"
  
      // Create left and right button for navigation item
       let leftButton =  UIBarButtonItem(title: "Save", style:   .plain, target: self, action: #selector(ViewController.btn_clicked(_:)))
  
      let rightButton = UIBarButtonItem(title: "Right", style: .plain, target: self, action: nil)
  
      // Create two buttons for the navigation item
      navigationItem.leftBarButtonItem = leftButton
      navigationItem.rightBarButtonItem = rightButton
  
      // Assign the navigation item to the navigation bar
      navigationBar.items = [navigationItem]
  
      // Make the navigation bar a subview of the current view controller
      self.view.addSubview(navigationBar)
  
  
  
  
  func btn_clicked(_ sender: UIBarButtonItem) {
      // Do something
  }
  

  Swift

  // Create the navigation bar
      let navigationBar = UINavigationBar(frame: CGRectMake(0, 0, self.view.frame.size.width, 44)) // Offset by 20 pixels vertically to take the status bar into account
  
      navigationBar.backgroundColor = UIColor.whiteColor()
      navigationBar.delegate = self;
  
      // Create a navigation item with a title
      let navigationItem = UINavigationItem()
      navigationItem.title = "Title"
  
      // Create left and right button for navigation item
      let leftButton =  UIBarButtonItem(title: "Save", style:   UIBarButtonItemStyle.Plain, target: self, action: "btn_clicked:")
      let rightButton = UIBarButtonItem(title: "Right", style: UIBarButtonItemStyle.Plain, target: self, action: nil)
  
      // Create two buttons for the navigation item
      navigationItem.leftBarButtonItem = leftButton
      navigationItem.rightBarButtonItem = rightButton
  
      // Assign the navigation item to the navigation bar
      navigationBar.items = [navigationItem]
  
      // Make the navigation bar a subview of the current view controller
      self.view.addSubview(navigationBar)
  
  
    func btn_clicked(sender: UIBarButtonItem) {
    // Do something
   }
  

  回复于 2024-05-03T09:14:42+08:00
• -3

  xib方法：

  来自here的教程

  - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    
  
      // Create the PlainViewController (and give it a title)
      PlainViewController *plainView = [[PlainViewController alloc] initWithNibName:@"PlainViewController" bundle:nil];
      [plainView setTitle:@"PlainView"];
  
      // Create the NavRootView controller (and give it a title)
      NavRootView *navRoot = [[NavRootView alloc] initWithNibName:@"NavRootView" bundle:nil];
      [navRoot setTitle:@"NavRoot"];
  
      // Create our navigation controller using our NavRootView as it's root view
      UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:navRoot];
  
      // Make an array containing our plain view controller and our navigation controller
      NSArray *viewArray = [NSArray arrayWithObjects:plainView, navController, nil];
  
      // Release the views and nav controller
      [plainView release];
      [navRoot release];
      [navController release];
  
      // Create our tab bar controller
      UITabBarController *tabbarController = [[UITabBarController alloc] init];
  
      // Tell the tab bar controller to use our array of views
      [tabbarController setViewControllers:viewArray];
  
      // Finally, add the tabbar controller as a subview of the app window
      [window addSubview:[tabbarController view]];
  
      [self.window makeKeyAndVisible];
      return YES;
  }
  

  只有代码：

  howto-implement-uinavigationcontroller-uitabbarcontroller-programmatically

  - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
  {
      /* Initialize window view */
      self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
  
      /* Initialize tab bar controller, add tabs controllers */
      self.tabBarController = [[UITabBarController alloc] init];
      self.tabBarController.viewControllers = [self initializeTabBarItems];
      self.window.rootViewController = self.tabBarController;
  
      [self.window makeKeyAndVisible];
      return (YES);
  }
  
  - (NSArray *)initializeTabBarItems
  {
      NSArray * retval;
  
      /* Initialize view controllers */
      ViewController1 * viewController1 = [[ViewController1 alloc] init];
      ViewController2 * viewController2 = [[ViewController2 alloc] init];
      ViewController3 * viewController3 = [[ViewController3 alloc] init];
      ViewController4 * viewController4 = [[ViewController4 alloc] init];
      ViewController5 * viewController5 = [[ViewController5 alloc] init];
  
      /* Initialize navigation controllers */
      UINavigationController * navigationController1 = [[UINavigationController alloc] initWithRootViewController:viewController1];
      UINavigationController * navigationController2 = [[UINavigationController alloc] initWithRootViewController:viewController2];
      UINavigationController * navigationController3 = [[UINavigationController alloc] initWithRootViewController:viewController3];
      UINavigationController * navigationController4 = [[UINavigationController alloc] initWithRootViewController:viewController4];
      UINavigationController * navigationController5 = [[UINavigationController alloc] initWithRootViewController:viewController5];
  
  
  
      /* Stuff Navigation Controllers into return value */
      retval = [NSArray arrayWithObjects:viewController1,viewController2,viewController3,viewController4,viewController5,nil];
  
  
  
      return (retval);
  }
  

  故事板：

  storyboards-tutorial-in-ios-7

  

  回复于 2024-05-03T09:14:42+08:00
• 68

  Swift版本，在viewDidLoad中添加：

  var doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Plain, target: self, action: "doneButton:")
  navigationItem.rightBarButtonItem = doneButton
  

  这在View Controller类中

  func doneButton(sender: UIBarButtonItem) {
      println(111)
  }
  

  回复于 2024-05-03T09:14:42+08:00