Question

我正在开发单一视图应用程序。点击按钮我想切换到下一页（让菜单控制器说）。请指定我必须在appdelegate中进行哪些更改才能添加导航控制器，因为我对iOS完全不熟悉。

[button addTarget:select action:@selector(buttonClick) forControlEvents:UIControlEventTouchUpInside]; and implement the selector as

-(void)buttonClick{
UIViewController *menu = [[UIViewController alloc] init];
[self.navigationController pushViewController:menu animated:YES];
}

Answer 1

在根视图控制器的app委托中添加它：

FirstViewController *firstViewController = [[FirstViewController alloc] initWithNibName:@"view name" bundle:nil]; 
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:firstViewController];
self.window.rootViewController = navigationController;

在按钮内点击：

SecondViewController *secondViewController = [[SecondViewController alloc] initWithNibName:@"view name" bundle:nil];
[self.navigationController pushViewController:secondViewController animated:YES];

Answer 2

您必须将UINavigationController设置为Window.rootViewController，如下所示。

FirstViewController *viewController = [[FirstViewController alloc] initWithNibName:@"FirstViewController" bundle:nil];
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:viewController];
self.window.rootViewController = navigationController;

Answer 3

你应该继承UIViewController并实现你想要的视图。可以通过编程方式或在界面构建器中构建视图。

然后，您可以使用segues，storyboard标识符或xib文件来加载视图。

可能如下所示:(假设您在故事板中设置视图控制器并使用适当的segue和下面的标识符连接它们）

-(void)buttonClick{
    [self performSegueWithIdentifier:@"MySegueIdentifier"];
}

-(void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    if ([segue.identifier isEqualToString: @"MySegueIdentifier"]) {
        MyCustomViewController* vc = (MyCustomViewController*)[segue destinationViewController];
        //do something with your view controller, like set a property
    }
}

或者可能喜欢这个

-(void) buttonClick {
    MyCustomViewController* vc = (MyCustomViewController*)[[UIStoryboard storyboardWithName: @"MyStoryboard"] instantiateViewControllerWithIdentifier: @"MyStoryboardIdentifier"];
    [self.navigationController pushViewController: vc animated: YES]; //assuming current view controller is a navigation stack. Or could also do presentViewController:animated:
}

您可以在项目中添加一个子类UIViewController，并将其导入（#import "MyCustomViewController.h"在您正在推送的视图控制器的.m文件中。）

也可以使用xib文件，但由于故事板更容易使用，我不会为此烦恼。

没有故事板：在app代理中：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    navigationController = [[UINavigationController alloc] init]; //navigation controller is a property on the app delegate
    // Override point for customization after application launch.
    FirstViewController *firstViewController = [[FirstViewController alloc] init];
    [navigationController pushViewController: firstViewController animated:NO];
    [window addSubview:navigationController.view];
    [window makeKeyAndVisible];

    return YES;
}

在FirstViewController中：

-(void) buttonClick {
    MyCustomViewController* vc = [[MyCustomViewController alloc] init]; // or maybe you have a custom init method
    [self.navigationController pushViewController: vc animated: YES];
}

Answer 4

很简单：

-(void)ButtonClickActionMethod
{
    [button addTarget:select action:@selector(buttonClick) forControlEvents:UIControlEventTouchUpInside];
}

点击操作：

-(void)buttonClick{
    YourViewController *view = [[YourViewController alloc] initWithNibName:@"YourViewController" bundle:nil];
    [self.navigationController pushViewController:view animated:YES];
}

如何在按钮上单击ios切换到下一个控制器（以编程方式）

4 个答案: