Question

我正在尝试从按钮推送视图。该方法在点击时被调用，但视图不会被推入导航控制器。以下是按钮点击的代码：

- (IBAction)aboutButtonTapped:(id)sender {
    NSLog(@"dashBoardButtonTapped");
    if (self.aboutView == nil) {
        self.aboutView = [[About alloc] initWithNibName:@"About" bundle:nil];
        [self.navigationController pushViewController:self.aboutView animated:YES];
    }
    else {
        [self.navigationController pushViewController:self.aboutView animated:YES];
    }
}

我想要做的是，当我登录到我的应用程序时，会出现一个带有按钮的选项视图。每个按钮都必须按下视图。下面是ViewController.m文件中的代码，它调用optionsView：

self.optionsView = [[Options alloc] initWithNibName:@"Options" bundle:nil];
self.navigationController = [[UINavigationController alloc] initWithRootViewController:self.optionsView];

AppDelegate *delegate = [[UIApplication sharedApplication] delegate];
delegate.window.rootViewController = self.navigationController;

请告诉我这件事我做错了什么？

Answer 1

您必须在appDelegate方法中添加一个UIViewcontroller，然后将其RootViewcontroller UInavigationController加入其中： -

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    // Override point for customization after application launch.

            self.viewController = [[yourViewcontroller alloc] initWithNibName:@"yourViewcontroller" bundle:nil];
            self.navController=[[UINavigationController alloc]initWithRootViewController:self.viewController];


    self.window.rootViewController = self.navController;

    [self.window makeKeyAndVisible];
    return YES;
}

然后你不需要应用每个类创建新的UInavigationController你只需要你的pust推送方法和你的视图按你想要的推动。：）

按钮点击不会推动视图 - Iphone开发

1 个答案: